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yellow · warm

#977f13

a dark, electric yellow · warm · closest name: Olive

Token name suggestion: Slate Brass

RGB
151, 127, 19
HSL
49°, 78%, 33%
CMYK
0, 16, 87, 41
Luminance
0.2181

#977f13 is a dark electric yellow, 49° on the wheel and 16/100 on the cool side. Put black text on it (5.36:1). As text it scores 3.92:1 on white — large text only. Nearest name is Olive, nearest Tailwind family is yellow.

hsl(49 78% 33%)rgb(151 127 19)Base step 800AA inkWarm

At a glance

Every number on this page in one read: what #977f13 is made of, how bright it looks, and which way it leans.

Hex
#977f13
Hue
49°
yellow
Saturation
78%
electric
Lightness
33%
dark
Brightness
59%
HSV value
Perceived
50%
weighted brightness
Luminance
0.2181
WCAG relative
Temperature
Warm
16/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
5.36:1
Closest name
Olive
ΔE2000 7.5
Chroma
55.3
LCH, 0–130ish
OKLCH L
0.602
perceptual lightness
Tailwind
yellow
500 · ΔE 19.7
Web-safe
#996600
nearest of 216
Where it sits
Hue49° of 360°
Saturation78%
Lightness33%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #977f13.

Temperature
Warm ← → Cool16% cool

Reads warm. Warm and cool siblings keep the same lightness, so you can swap one in without redoing your contrast maths.

Luminance by channel
Red30%
Green70%
Blue0%

Green carries most of what the eye calls brightness — that is why WCAG weights it 0.7152.

Every format

HEX#977f13
HEX (8-digit)#977f13ff
RGBrgb(151, 127, 19)
RGBArgba(151, 127, 19, 1)
HSLhsl(49, 78%, 33%)
HSV / HSBhsv(49, 87%, 59%)
HWBhwb(49 7% 41%)
CMYKcmyk(0%, 16%, 87%, 41%)
LABlab(53.8 -1.2 55.3)
LCHlch(53.8 55.3 91.3)
OKLCHoklch(0.602 0.118 95.0)
XYZ (D65)xyz(20.47, 21.81, 3.75)
Decimal9928467
Display P3color(display-p3 0.592 0.498 0.075)
Web-safe#996600

Copy-ready code

every platformclick to select
/* CSS */
color: #977f13;
background-color: #977f13;
/* CSS custom property */
--brand: #977f13;
/* Tailwind (arbitrary) */
class="text-[#977f13] bg-[#977f13]"
/* SCSS */
$brand: #977f13;
/* SwiftUI */
Color(red: 0.592, green: 0.498, blue: 0.075)
/* UIKit */
UIColor(red: 0.592, green: 0.498, blue: 0.075, alpha: 1)
/* Android XML */
<color name="brand">#977F13</color>
/* Android Compose */
Color(0xFF977F13)
/* Flutter */
Color(0xFF977F13)
/* Python / OpenCV (BGR) */
(19, 127, 151)
/* Python / PIL (RGB) */
(151, 127, 19)
/* Java AWT */
new Color(151, 127, 19)
/* .NET */
Color.FromArgb(255, 151, 127, 19)
/* OpenGL / Unity (0–1) */
(0.5922f, 0.4980f, 0.0745f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{151,127,19}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #977f13 85%, white);
border-color: color-mix(in oklab, #977f13 40%, transparent);
/* theme-aware in one line */
color: light-dark(#715F0E, #EEE9D3);
/* relative colour syntax */
--hover: hsl(from #977f13 h s calc(l - 7));

Design tokens

The same ramp in the four formats a team actually needs. Paste one and the whole palette lands with it.

css custom propertiesclick to select
:root {
  --brand-50: #FCFAF3;
  --brand-100: #F9F6E6;
  --brand-200: #F4ECC7;
  --brand-300: #F2E39B;
  --brand-400: #ECD46A;
  --brand-500: #E6C638;
  --brand-600: #D9B71B;
  --brand-700: #B59817;
  --brand-800: #977f13;
  --brand-900: #695912;
  --brand-950: #42380B;
  --brand: #977f13;
  --brand-ink: #000000;
  --brand-surface: #FAF9F4;
  --brand-border: #EDE4C0;
  --brand-hover: #77640F;
  --brand-pressed: #574A0B;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #242114;
    --brand-ink: #EEE9D3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FCFAF3',
        100: '#F9F6E6',
        200: '#F4ECC7',
        300: '#F2E39B',
        400: '#ECD46A',
        500: '#E6C638',
        600: '#D9B71B',
        700: '#B59817',
        800: '#977f13',
        900: '#695912',
        950: '#42380B',
        DEFAULT: '#977f13',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FCFAF3,
  '100': #F9F6E6,
  '200': #F4ECC7,
  '300': #F2E39B,
  '400': #ECD46A,
  '500': #E6C638,
  '600': #D9B71B,
  '700': #B59817,
  '800': #977f13,
  '900': #695912,
  '950': #42380B,
);
$brand-base: #977f13;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FCFAF3", "$type": "color" },
      "100": { "$value": "#F9F6E6", "$type": "color" },
      "200": { "$value": "#F4ECC7", "$type": "color" },
      "300": { "$value": "#F2E39B", "$type": "color" },
      "400": { "$value": "#ECD46A", "$type": "color" },
      "500": { "$value": "#E6C638", "$type": "color" },
      "600": { "$value": "#D9B71B", "$type": "color" },
      "700": { "$value": "#B59817", "$type": "color" },
      "800": { "$value": "#977f13", "$type": "color" },
      "900": { "$value": "#695912", "$type": "color" },
      "950": { "$value": "#42380B", "$type": "color" }
    },
    "brandInk": { "$value": "#000000", "$type": "color" }
  }
}

Best text color

Only one of black and white can be right. This is the one, with the number that proves it.

Readable at a glance#000000 on #977f13 · 5.36:1
Use #000000AA at every size, AAA for large text only.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 3.92:1
AA fail · AA large pass · AAA fail
Aa
Black text · 5.36:1 · recommended
AA pass · AA large pass · AAA fail
Reading the other direction: #977f13 as text scores 3.92:1 on white and 5.36:1 on black.
Best tinted ink on it, if plain black or white feels flat: #715F0E at 1.60:1.

Make it accessible

A contrast checker tells you that you failed. This tells you what to ship instead — same hue, same saturation, lightness moved only as far as WCAG demands.

The quick fox
#897311 · 4.64:1
AA on white−3% L
#897311
The quick fox
#65550D · 7.35:1
AAA on white−11% L
#65550D
The quick fox
#977f13 · 5.36:1
AA on blackalready passes
#977f13
The quick fox
#B29616 · 7.27:1
AAA on black+6% L
#B29616

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #977F13 is enough for headings on white. Non-text elements such as icons, chart strokes and focus rings also sit at 3:1 under WCAG 2.2 (1.4.11).

Accessibility — WCAG contrast

Aa
#977f13 on white: 3.92:1
AA ✗ fail · AA-large · AAA
Aa
#977f13 on black: 5.36:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #977f13 as text on that neutral, and that neutral as text on #977f13.

NeutralRatioBoth directions
White3.92:1AaAa
Slate 503.74:1AaAa
Slate 1003.58:1AaAa
Slate 2003.18:1AaAa
Slate 3002.64:1AaAa
Slate 4001.53:1AaAa
Slate 5001.21:1AaAa
Slate 6001.93:1AaAa
Slate 7002.64:1AaAa
Slate 8003.73:1AaAa
Slate 9004.56:1AaAa
Black5.36:1AaAa
Colour vision deficiency
true color
protanopia · #8E7C00
deuteranopia · #94841C
tritanopia · #A4746C

Roughly one man in twelve has some form of colour vision deficiency. If any of the three panels above is hard to tell apart from a neighbouring colour in your palette, add a shape, an icon or a label so the meaning does not rest on hue alone.

Color scale — 50 to 950

A Tailwind-shaped ramp built around this exact hex. #977f13 is pinned to step 800; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FCFAF3
#F9F6E6
#F4ECC7
#F2E39B
#ECD46A
#E6C638
#D9B71B
#B59817
#977f13
#695912
#42380B
Base = 800Lightest = 50 · #FCFAF3Darkest = 950 · #42380BText step on white = 900
Perceptual ramp — OKLCH

The same eleven steps expressed in OKLCH, where equal lightness numbers actually look equally spaced. HSL ramps go muddy in the yellows and washed out in the blues; this one does not. Modern browsers render it natively — the hex ramp above is the fallback.

50100200300400500600700800900950
oklch tokensclick to select
:root {
  --brand-50: oklch(0.97 0.030 95.0);
  --brand-100: oklch(0.94 0.047 95.0);
  --brand-200: oklch(0.88 0.071 95.0);
  --brand-300: oklch(0.80 0.092 95.0);
  --brand-400: oklch(0.72 0.109 95.0);
  --brand-500: oklch(0.64 0.118 95.0);
  --brand-600: oklch(0.56 0.118 95.0);
  --brand-700: oklch(0.48 0.111 95.0);
  --brand-800: oklch(0.40 0.099 95.0);
  --brand-900: oklch(0.32 0.083 95.0);
  --brand-950: oklch(0.24 0.065 95.0);
}

Colors that work with #977f13

Not a palette — a role sheet. Each swatch answers one question you will hit while building the component.

Text on it#000000
Black wins here
Surface#FAF9F4
Tinted page background
Border#EDE4C0
Hairlines and dividers
Muted text#9B8C4B
Captions on the surface
Accent#104B9A
Second voice, not a rival
Dark variant#715F0E
Hover, pressed, headers
Light variant#FCF9E8
Selected rows, tints
Dark surface#242114
Dark-mode background
Hover#77640F
One step down in lightness
Pressed#574A0B
Two steps down
Disabled#A69D74
Chroma pulled out
Focus ring#B2940C
Offset from the fill so it reads
Light mode
Everything in its place

Surface, border, heading and body all derive from this one hue, so the screen stays coherent without a second palette.

Primary actionSecondaryBadge
Dark mode
Same hue, inverted

Lightness flips, hue holds. The accent stays the anchor in both themes.

Primary actionSecondaryAccent

In real components

The same eight roles, wired into the interface patterns you will actually build with them. Every state below is a computed value, not a mock-up.

Buttons and states
Save changesHoverPressedDisabled
OutlineSubtleLinkFocused
Form field
you@company.com

Focus ring uses the light variant so the field still reads as one shape.

Send me product updates
Notice
Your export is ready

The file stays available for seven days. Download it before it expires.

NewBetaDraft
Data
Storage used68%
Acme LtdActive
NorthwindTrial
GlobexActive

How to use #977f13

Derived from its contrast, chroma and lightness — not from taste.

Works well for
  • Headings from 24px up on white
  • Text and icons on dark surfaces
  • Primary buttons and calls to action
  • Focus rings, active and selected states
  • Headers, footers and dark-mode surfaces
  • Brand accents, badges and data highlights
Use with care
  • Small text on white — under 4.5:1
  • Full-page backgrounds — tiring over long sessions
  • Black text placed on it
  • Thin strokes and 1px borders — they disappear on light UI
  • Pairing with a same-lightness hue — edges vibrate
Minimum size as text on white
24px / 18.66px bold
Safe as a fill behind white type
No — use #715F0E
Safe as a 1px border on white
Yes

Meaning and mood

What a colour in this family tends to signal, and how this particular chroma and lightness change the reading.

optimisticalertcheap-and-cheerfulvisible

The most visible hue at low light levels, which is why it owns warnings, hazard tape and value retail.

At this chroma the association is amplified — it will dominate anything placed beside it, so give it space and use it sparingly. The low lightness adds weight and formality.

Worth knowing

Almost never passes contrast against white. Treat it as a surface or a marker, not as text.

Reads as
  • FormalityHigh
  • EnergyHigh
  • Weight67/100
  • TemperatureWarm
  • ApproachabilityHigh

Colour associations are cultural and vary by market. Treat these as a starting point for a conversation with your audience, not a finding about them.

Similar colors

One move away from this hex in each direction. Every swatch is its own page.

Color relationships

The wheel positions with their names attached, so you can grab the one you actually need.

Complementary#132B97
Analogous left#973D13
Analogous right#6D9713
Split-complement 1#136D97
Split-complement 2#3D1397
Triadic 1#13977F
Triadic 2#7F1397
Tetradic#13973D
On the wheel
Base+30°−30°+120°+240°+180°49°

#977f13 sits at 49°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red59.2%
Green49.8%
Blue7.5%
R · 0–255
151
0x97
G · 0–255
127
0x7f
B · 0–255
19
0x13

CMYK percentages

Cyan0.0%
Magenta15.9%
Yellow87.4%
Key (black)40.8%

Total ink coverage is 144%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#977f13 text on a black background

contrast 5.36:1

Card sample

#977f13 text on a white background

contrast 3.92:1

Card sample

#977f13 on grey

3.58:1

#977f13 on its own surface

3.72:1

#977f13 on its dark surface

4.12:1

CSS3 live lab

Text font color

The quick brown fox

color: #977f13;
Background color
Panel with #977f13 background
background-color: #977f13;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #977f13;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(151, 127, 19, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(151, 127, 19, 0.45);
Border & gradient
Gradient panel
border: 3px solid #977f13;
background: linear-gradient(135deg, #977f13, #579713);
Gradient text

Gradient headline

background: linear-gradient(90deg, #977f13, #369713);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #977f13;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #977f13;
caret-color: #977f13;
Left rule
Pull quote or callout
border-left: 4px solid #977f13;
Ring + tint
Selected chip
background: #FCF9E8;
box-shadow: inset 0 0 0 2px #977f13;
Conic badge
68%
background: conic-gradient(#977f13 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #977f13 over white; the bottom row is the same alpha over a checkerboard, so you can see what survives on a photo or a video.

Bottom row of hexes is the flattened result over white — use those when a design tool refuses transparency, or when you need a solid fallback.

alpha in every syntaxclick to select
rgba(151, 127, 19, 0.5)
rgb(151 127 19 / 50%)
#977f1380
hsl(49 78% 33% / 50%)
color-mix(in srgb, #977f13 50%, transparent)
Alpha8-digit hexFlat on white
10%#977f131a#F5F2E7
20%#977f1333#EAE5D0
40%#977f1366#D5CCA1
60%#977f1399#C1B271
80%#977f13cc#AC9942

Gradients from #977f13

Six recipes, each built from this hex and shown with the exact CSS that produced it.

Elevation
Same hue, three lightnesses — safe anywhere
background: linear-gradient(135deg, #CDAD1A, #977f13 45%, #715F0E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #977f13, #3E7C10);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #977f13, #132B97);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E3C022 0%, #977f13 45%, #715F0E 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAF9F4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #C44119 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #74B216 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #715F0E 0%, transparent 65%), #977f13;

Monochromatic scale

Palettes built from #977f13

Shades — darker

Tints — lighter

Tones — desaturated

Color harmonies

Nearest named colors

Ranked with CIEDE2000 across all 139 CSS keywords. Under ΔE 2 the eye stops telling them apart; over ΔE 10 they are plainly different colors.

#977f13 in the real world

Where a color in this family tends to land, and the interface roles it is usually asked to play.

Industries
RetailLeisureEnergyWarning systems
Common UI roles
ButtonsLinksFocus statesCharts
Print note

Sits outside most CMYK gamuts — expect a duller press result, or specify a spot ink.

On screens

Holds up across typical panel gamma. Still worth checking on an uncalibrated laptop, where mid-tones shift most.

In dark mode

Usable as-is on a dark surface at 5.36:1.

Explore nearby colors

Small, deliberate steps away from this hex — useful when you are hunting for the version of a colour that finally feels right.

#977f13, answered

What color is #977f13?

#977f13 is a dark electric yellow, closest to Olive (ΔE2000 7.5). It sits at 49° on the hue wheel with 78% saturation and 33% lightness, which reads as warm.

What is the RGB value of #977f13?

rgb(151, 127, 19) — 151 red, 127 green and 19 blue out of 255, or 59.2% / 49.8% / 7.5% by channel.

What is #977f13 in HSL and HSV?

hsl(49, 78%, 33%) and hsv(49, 87%, 59%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #977f13 a light or a dark color?

It is a mid-tone. Relative luminance is 0.2181 and perceived brightness is 50%, so black text on it reaches 5.36:1.

Should I use black or white text on #977f13?

Black. It scores 5.36:1 against #977f13, versus 3.92:1 for white — AA at any size.

Is #977f13 accessible on a white background?

#977f13 on white scores 3.92:1, which only clears AA for large text — 18.66px bold or 24px regular and up. Darken it to #897311 to reach 4.5:1, or #65550D for 7:1.

What is the complementary color of #977f13?

#132B97 sits directly opposite on the wheel. Softer options are the split-complements #136D97 and #3D1397, which give the same contrast with far less vibration.

What colors go well with #977f13?

For interface work: #FAF9F4 as the surface, #EDE4C0 for borders, #9B8C4B for secondary text, #104B9A as an accent and #715F0E for hover and pressed states. For a palette, the analogous pair #973D13 and #6D9713 stays calm, while #132B97 is the loudest partner.

What is #977f13 in CMYK for printing?

cmyk(0%, 16%, 87%, 41%). This is a screen-to-ink approximation — a color this saturated sits outside most CMYK gamuts and will print duller than it looks here.

Is #977f13 warm or cool?

Warm — it scores 16 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #975E13; nudged cooler, #7F9911.

Which Tailwind color is closest to #977f13?

The yellow family — its 500 step is #eab308, ΔE2000 19.7 away. That is a visible difference, so define #977f13 as a custom token rather than reaching for the built-in.

How do I use #977f13 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#977f13] or text-[#977f13], or register the whole ramp under theme.extend.colors.brand so you get bg-brand-500 and friends. The generated 50–950 scale on this page is ready to paste into your config.

What is #977f13 with 50% opacity?

rgba(151, 127, 19, 0.5), or #977f1380 in eight-digit hex. Over white that composites to #CBBF89; over black, #4C400A.

Is #977f13 a web-safe color?

No. The nearest web-safe colour is #996600, ΔE2000 11.8 away. The palette only matters for legacy displays and some email clients now.

What does the color #977f13 mean?

As a yellow, it reads optimistic, alert, cheap-and-cheerful. The most visible hue at low light levels, which is why it owns warnings, hazard tape and value retail. At this chroma the effect is amplified — it will dominate whatever sits beside it.

What gradient works with #977f13?

The safest is same-hue elevation: linear-gradient(135deg, #CDAD1A, #977f13 45%, #715F0E). For more colour, a short hue run to #3E7C10 keeps it rich without turning muddy.

Work with #977f13 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #977f13 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.