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yellow · warm

#b7c014

a dark, electric yellow · warm · closest name: Yellow Green

Token name suggestion: Dusk Citron

RGB
183, 192, 20
HSL
63°, 81%, 42%
CMYK
5, 0, 90, 25
Luminance
0.4782

#b7c014 is a dark electric yellow, 63° on the wheel and 28/100 on the cool side. Put black text on it (10.56:1). As text it scores 1.99:1 on white — use #757B0D instead. Nearest name is Yellow Green, nearest Tailwind family is lime.

hsl(63 81% 42%)rgb(183 192 20)Base step 700AAA inkWarm

At a glance

Every number on this page in one read: what #b7c014 is made of, how bright it looks, and which way it leans.

Hex
#b7c014
Hue
63°
yellow
Saturation
81%
electric
Lightness
42%
dark
Brightness
75%
HSV value
Perceived
70%
weighted brightness
Luminance
0.4782
WCAG relative
Temperature
Warm
28/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
10.56:1
Closest name
Yellow Green
ΔE2000 8.8
Chroma
76.1
LCH, 0–130ish
OKLCH L
0.775
perceptual lightness
Tailwind
lime
500 · ΔE 11.2
Web-safe
#CCCC00
nearest of 216
Where it sits
Hue63° of 360°
Saturation81%
Lightness42%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #b7c014.

Temperature
Warm ← → Cool28% 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
Red21%
Green79%
Blue0%

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

Every format

HEX#b7c014
HEX (8-digit)#b7c014ff
RGBrgb(183, 192, 20)
RGBArgba(183, 192, 20, 1)
HSLhsl(63, 81%, 42%)
HSV / HSBhsv(63, 90%, 75%)
HWBhwb(63 8% 25%)
CMYKcmyk(5%, 0%, 90%, 25%)
LABlab(74.7 -21.0 73.1)
LCHlch(74.7 76.1 106.0)
OKLCHoklch(0.775 0.169 113.1)
XYZ (D65)xyz(38.51, 47.82, 7.86)
Decimal12042260
Display P3color(display-p3 0.718 0.753 0.078)
Web-safe#CCCC00

Copy-ready code

every platformclick to select
/* CSS */
color: #b7c014;
background-color: #b7c014;
/* CSS custom property */
--brand: #b7c014;
/* Tailwind (arbitrary) */
class="text-[#b7c014] bg-[#b7c014]"
/* SCSS */
$brand: #b7c014;
/* SwiftUI */
Color(red: 0.718, green: 0.753, blue: 0.078)
/* UIKit */
UIColor(red: 0.718, green: 0.753, blue: 0.078, alpha: 1)
/* Android XML */
<color name="brand">#B7C014</color>
/* Android Compose */
Color(0xFFB7C014)
/* Flutter */
Color(0xFFB7C014)
/* Python / OpenCV (BGR) */
(20, 192, 183)
/* Python / PIL (RGB) */
(183, 192, 20)
/* Java AWT */
new Color(183, 192, 20)
/* .NET */
Color.FromArgb(255, 183, 192, 20)
/* OpenGL / Unity (0–1) */
(0.7176f, 0.7529f, 0.0784f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{183,192,20}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #b7c014 85%, white);
border-color: color-mix(in oklab, #b7c014 40%, transparent);
/* theme-aware in one line */
color: light-dark(#6E730C, #EDEED3);
/* relative colour syntax */
--hover: hsl(from #b7c014 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: #FCFCF3;
  --brand-100: #F8F9E6;
  --brand-200: #F3F6C6;
  --brand-300: #F0F499;
  --brand-400: #E8EF67;
  --brand-500: #E0EA34;
  --brand-600: #D3DE17;
  --brand-700: #b7c014;
  --brand-800: #8D940F;
  --brand-900: #666B10;
  --brand-950: #40430A;
  --brand: #b7c014;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #EAEDC0;
  --brand-hover: #98A011;
  --brand-pressed: #7A7F0D;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #242414;
    --brand-ink: #EDEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FCFCF3',
        100: '#F8F9E6',
        200: '#F3F6C6',
        300: '#F0F499',
        400: '#E8EF67',
        500: '#E0EA34',
        600: '#D3DE17',
        700: '#b7c014',
        800: '#8D940F',
        900: '#666B10',
        950: '#40430A',
        DEFAULT: '#b7c014',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FCFCF3,
  '100': #F8F9E6,
  '200': #F3F6C6,
  '300': #F0F499,
  '400': #E8EF67,
  '500': #E0EA34,
  '600': #D3DE17,
  '700': #b7c014,
  '800': #8D940F,
  '900': #666B10,
  '950': #40430A,
);
$brand-base: #b7c014;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FCFCF3", "$type": "color" },
      "100": { "$value": "#F8F9E6", "$type": "color" },
      "200": { "$value": "#F3F6C6", "$type": "color" },
      "300": { "$value": "#F0F499", "$type": "color" },
      "400": { "$value": "#E8EF67", "$type": "color" },
      "500": { "$value": "#E0EA34", "$type": "color" },
      "600": { "$value": "#D3DE17", "$type": "color" },
      "700": { "$value": "#b7c014", "$type": "color" },
      "800": { "$value": "#8D940F", "$type": "color" },
      "900": { "$value": "#666B10", "$type": "color" },
      "950": { "$value": "#40430A", "$type": "color" }
    },
    "brandInk": { "$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 #b7c014 · 10.56:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.99:1
AA fail · AA large fail · AAA fail
Aa
Black text · 10.56:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #b7c014 as text scores 1.99:1 on white and 10.56:1 on black.
Best tinted ink on it, if plain black or white feels flat: #6E730C at 2.56:1.

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
#757B0D · 4.57:1
AA on white−15% L
#757B0D
The quick fox
#565B09 · 7.25:1
AAA on white−22% L
#565B09
The quick fox
#b7c014 · 10.56:1
AA on blackalready passes
#b7c014
The quick fox
#b7c014 · 10.56:1
AAA on blackalready passes
#b7c014

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #949B10 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
#b7c014 on white: 1.99:1
AA ✗ fail · AA-large · AAA
Aa
#b7c014 on black: 10.56:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #b7c014 as text on that neutral, and that neutral as text on #b7c014.

NeutralRatioBoth directions
White1.99:1AaAa
Slate 501.90:1AaAa
Slate 1001.81:1AaAa
Slate 2001.61:1AaAa
Slate 3001.34:1AaAa
Slate 4001.29:1AaAa
Slate 5002.39:1AaAa
Slate 6003.81:1AaAa
Slate 7005.21:1AaAa
Slate 8007.36:1AaAa
Slate 9008.98:1AaAa
Black10.56:1AaAa
Colour vision deficiency
true color
protanopia · #CFB600
deuteranopia · #CFB92B
tritanopia · #C4B4A4

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. #b7c014 is pinned to step 700; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FCFCF3
#F8F9E6
#F3F6C6
#F0F499
#E8EF67
#E0EA34
#D3DE17
#b7c014
#8D940F
#666B10
#40430A
Base = 700Lightest = 50 · #FCFCF3Darkest = 950 · #40430AText 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 0.042 113.1);
  --brand-100: oklch(0.94 0.068 113.1);
  --brand-200: oklch(0.88 0.102 113.1);
  --brand-300: oklch(0.80 0.132 113.1);
  --brand-400: oklch(0.72 0.156 113.1);
  --brand-500: oklch(0.64 0.169 113.1);
  --brand-600: oklch(0.56 0.169 113.1);
  --brand-700: oklch(0.48 0.159 113.1);
  --brand-800: oklch(0.40 0.142 113.1);
  --brand-900: oklch(0.32 0.119 113.1);
  --brand-950: oklch(0.24 0.093 113.1);
}

Colors that work with #b7c014

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#FAFAF4
Tinted page background
Border#EAEDC0
Hairlines and dividers
Muted text#979B4B
Captions on the surface
Accent#1034C4
Second voice, not a rival
Dark variant#6E730C
Hover, pressed, headers
Light variant#FCFDE8
Selected rows, tints
Dark surface#242414
Dark-mode background
Hover#98A011
One step down in lightness
Pressed#7A7F0D
Two steps down
Disabled#B4B78E
Chroma pulled out
Focus ring#D3DE0A
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 #b7c014

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

Works well for
  • 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
  • Text of any size on white — fails WCAG AA
  • 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
Not as text
Safe as a fill behind white type
No — use #6E730C
Safe as a 1px border on white
No — use #949B10

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
  • Weight58/100
  • 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#1D14C0
Analogous left#C07314
Analogous right#61C014
Split-complement 1#1461C0
Split-complement 2#7314C0
Triadic 1#14B7C0
Triadic 2#C014B7
Tetradic#14C073
On the wheel
Base+30°−30°+120°+240°+180°63°

#b7c014 sits at 63°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red71.8%
Green75.3%
Blue7.8%
R · 0–255
183
0xb7
G · 0–255
192
0xc0
B · 0–255
20
0x14

CMYK percentages

Cyan4.7%
Magenta0.0%
Yellow89.6%
Key (black)24.7%

Total ink coverage is 119%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#b7c014 text on a black background

contrast 10.56:1

Card sample

#b7c014 text on a white background

contrast 1.99:1

Card sample

#b7c014 on grey

1.81:1

#b7c014 on its own surface

1.90:1

#b7c014 on its dark surface

7.90:1

CSS3 live lab

Text font color

The quick brown fox

color: #b7c014;
Background color
Panel with #b7c014 background
background-color: #b7c014;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #b7c014;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(183, 192, 20, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(183, 192, 20, 0.45);
Border & gradient
Gradient panel
border: 3px solid #b7c014;
background: linear-gradient(135deg, #b7c014, #45C014);
Gradient text

Gradient headline

background: linear-gradient(90deg, #b7c014, #19C014);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #b7c014;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #b7c014;
caret-color: #b7c014;
Left rule
Pull quote or callout
border-left: 4px solid #b7c014;
Ring + tint
Selected chip
background: #FCFDE8;
box-shadow: inset 0 0 0 2px #b7c014;
Conic badge
68%
background: conic-gradient(#b7c014 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #b7c014 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(183, 192, 20, 0.5)
rgb(183 192 20 / 50%)
#b7c01480
hsl(63 81% 42% / 50%)
color-mix(in srgb, #b7c014 50%, transparent)
Alpha8-digit hexFlat on white
10%#b7c0141a#F8F9E8
20%#b7c01433#F1F2D0
40%#b7c01466#E2E6A1
60%#b7c01499#D4D972
80%#b7c014cc#C5CD43

Gradients from #b7c014

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, #DFE929, #b7c014 45%, #6E730C);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #b7c014, #2EA411);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #b7c014, #1D14C0);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E3EC44 0%, #b7c014 45%, #6E730C 100%);
Soft wash
Section backgrounds that stay readable
background: linear-gradient(180deg, #FAFAF4, #ffffff);
Mesh
Ambient background, no image weight
background: radial-gradient(60% 60% at 15% 20%, #E87D1F 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #5FDC17 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #6E730C 0%, transparent 65%), #b7c014;

Monochromatic scale

Palettes built from #b7c014

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.

#b7c014 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 10.56:1.

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.

#b7c014, answered

What color is #b7c014?

#b7c014 is a dark electric yellow, closest to Yellow Green (ΔE2000 8.8). It sits at 63° on the hue wheel with 81% saturation and 42% lightness, which reads as warm.

What is the RGB value of #b7c014?

rgb(183, 192, 20) — 183 red, 192 green and 20 blue out of 255, or 71.8% / 75.3% / 7.8% by channel.

What is #b7c014 in HSL and HSV?

hsl(63, 81%, 42%) and hsv(63, 90%, 75%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #b7c014 a light or a dark color?

It is a mid-tone. Relative luminance is 0.4782 and perceived brightness is 70%, so black text on it reaches 10.56:1.

Should I use black or white text on #b7c014?

Black. It scores 10.56:1 against #b7c014, versus 1.99:1 for white — AAA at any size.

Is #b7c014 accessible on a white background?

#b7c014 on white scores 1.99:1, which fails WCAG AA at every size. Darken it to #757B0D to reach 4.5:1, or #565B09 for 7:1.

What is the complementary color of #b7c014?

#1D14C0 sits directly opposite on the wheel. Softer options are the split-complements #1461C0 and #7314C0, which give the same contrast with far less vibration.

What colors go well with #b7c014?

For interface work: #FAFAF4 as the surface, #EAEDC0 for borders, #979B4B for secondary text, #1034C4 as an accent and #6E730C for hover and pressed states. For a palette, the analogous pair #C07314 and #61C014 stays calm, while #1D14C0 is the loudest partner.

What is #b7c014 in CMYK for printing?

cmyk(5%, 0%, 90%, 25%). 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 #b7c014 warm or cool?

Warm — it scores 28 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #C08A14; nudged cooler, #78C212.

Which Tailwind color is closest to #b7c014?

The lime family — its 500 step is #84cc16, ΔE2000 11.2 away. That is a visible difference, so define #b7c014 as a custom token rather than reaching for the built-in.

How do I use #b7c014 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#b7c014] or text-[#b7c014], 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 #b7c014 with 50% opacity?

rgba(183, 192, 20, 0.5), or #b7c01480 in eight-digit hex. Over white that composites to #DBE08A; over black, #5C600A.

Is #b7c014 a web-safe color?

No. The nearest web-safe colour is #CCCC00, ΔE2000 4.4 away. The palette only matters for legacy displays and some email clients now.

What does the color #b7c014 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 #b7c014?

The safest is same-hue elevation: linear-gradient(135deg, #DFE929, #b7c014 45%, #6E730C). For more colour, a short hue run to #2EA411 keeps it rich without turning muddy.

Work with #b7c014 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #b7c014 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.