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yellow · warm

#a2ab03

a dark, electric yellow · warm · closest name: Dark Khaki

Token name suggestion: Slate Brass

RGB
162, 171, 3
HSL
63°, 97%, 34%
CMYK
5, 0, 98, 33
Luminance
0.3681

#a2ab03 is a dark electric yellow, 63° on the wheel and 28/100 on the cool side. Put black text on it (8.36:1). As text it scores 2.51:1 on white — use #727902 instead. Nearest name is Dark Khaki, nearest Tailwind family is lime.

hsl(63 97% 34%)rgb(162 171 3)Base step 800AAA inkWarm

At a glance

Every number on this page in one read: what #a2ab03 is made of, how bright it looks, and which way it leans.

Hex
#a2ab03
Hue
63°
yellow
Saturation
97%
electric
Lightness
34%
dark
Brightness
67%
HSV value
Perceived
62%
weighted brightness
Luminance
0.3681
WCAG relative
Temperature
Warm
28/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
8.36:1
Closest name
Dark Khaki
ΔE2000 10.3
Chroma
71.6
LCH, 0–130ish
OKLCH L
0.710
perceptual lightness
Tailwind
lime
500 · ΔE 12.7
Web-safe
#999900
nearest of 216
Where it sits
Hue63° of 360°
Saturation97%
Lightness34%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #a2ab03.

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#a2ab03
HEX (8-digit)#a2ab03ff
RGBrgb(162, 171, 3)
RGBArgba(162, 171, 3, 1)
HSLhsl(63, 97%, 34%)
HSV / HSBhsv(63, 98%, 67%)
HWBhwb(63 1% 33%)
CMYKcmyk(5%, 0%, 98%, 33%)
LABlab(67.1 -19.9 68.8)
LCHlch(67.1 71.6 106.1)
OKLCHoklch(0.710 0.158 113.5)
XYZ (D65)xyz(29.48, 36.81, 5.64)
Decimal10660611
Display P3color(display-p3 0.635 0.671 0.012)
Web-safe#999900

Copy-ready code

every platformclick to select
/* CSS */
color: #a2ab03;
background-color: #a2ab03;
/* CSS custom property */
--brand: #a2ab03;
/* Tailwind (arbitrary) */
class="text-[#a2ab03] bg-[#a2ab03]"
/* SCSS */
$brand: #a2ab03;
/* SwiftUI */
Color(red: 0.635, green: 0.671, blue: 0.012)
/* UIKit */
UIColor(red: 0.635, green: 0.671, blue: 0.012, alpha: 1)
/* Android XML */
<color name="brand">#A2AB03</color>
/* Android Compose */
Color(0xFFA2AB03)
/* Flutter */
Color(0xFFA2AB03)
/* Python / OpenCV (BGR) */
(3, 171, 162)
/* Python / PIL (RGB) */
(162, 171, 3)
/* Java AWT */
new Color(162, 171, 3)
/* .NET */
Color.FromArgb(255, 162, 171, 3)
/* OpenGL / Unity (0–1) */
(0.6353f, 0.6706f, 0.0118f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{162,171,3}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #a2ab03 85%, white);
border-color: color-mix(in oklab, #a2ab03 40%, transparent);
/* theme-aware in one line */
color: light-dark(#777D02, #EDEED3);
/* relative colour syntax */
--hover: hsl(from #a2ab03 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: #FDFDF1;
  --brand-100: #FAFCE4;
  --brand-200: #F7FBC1;
  --brand-300: #F7FD91;
  --brand-400: #F3FC5A;
  --brand-500: #F0FB22;
  --brand-600: #E4F104;
  --brand-700: #BEC903;
  --brand-800: #a2ab03;
  --brand-900: #6E7407;
  --brand-950: #454804;
  --brand: #a2ab03;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #EAEDC0;
  --brand-hover: #818802;
  --brand-pressed: #5F6502;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #242414;
    --brand-ink: #EDEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FDFDF1',
        100: '#FAFCE4',
        200: '#F7FBC1',
        300: '#F7FD91',
        400: '#F3FC5A',
        500: '#F0FB22',
        600: '#E4F104',
        700: '#BEC903',
        800: '#a2ab03',
        900: '#6E7407',
        950: '#454804',
        DEFAULT: '#a2ab03',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FDFDF1,
  '100': #FAFCE4,
  '200': #F7FBC1,
  '300': #F7FD91,
  '400': #F3FC5A,
  '500': #F0FB22,
  '600': #E4F104,
  '700': #BEC903,
  '800': #a2ab03,
  '900': #6E7407,
  '950': #454804,
);
$brand-base: #a2ab03;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FDFDF1", "$type": "color" },
      "100": { "$value": "#FAFCE4", "$type": "color" },
      "200": { "$value": "#F7FBC1", "$type": "color" },
      "300": { "$value": "#F7FD91", "$type": "color" },
      "400": { "$value": "#F3FC5A", "$type": "color" },
      "500": { "$value": "#F0FB22", "$type": "color" },
      "600": { "$value": "#E4F104", "$type": "color" },
      "700": { "$value": "#BEC903", "$type": "color" },
      "800": { "$value": "#a2ab03", "$type": "color" },
      "900": { "$value": "#6E7407", "$type": "color" },
      "950": { "$value": "#454804", "$type": "color" }
    },
    "brandInk": { "$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 #a2ab03 · 8.36:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 2.51:1
AA fail · AA large fail · AAA fail
Aa
Black text · 8.36:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #a2ab03 as text scores 2.51:1 on white and 8.36:1 on black.
Best tinted ink on it, if plain black or white feels flat: #777D02 at 1.77:1.

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
#727902 · 4.72:1
AA on white−10% L
#727902
The quick fox
#565B02 · 7.26:1
AAA on white−16% L
#565B02
The quick fox
#a2ab03 · 8.36:1
AA on blackalready passes
#a2ab03
The quick fox
#a2ab03 · 8.36:1
AAA on blackalready passes
#a2ab03

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #8F9703 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
#a2ab03 on white: 2.51:1
AA ✗ fail · AA-large · AAA
Aa
#a2ab03 on black: 8.36:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #a2ab03 as text on that neutral, and that neutral as text on #a2ab03.

NeutralRatioBoth directions
White2.51:1AaAa
Slate 502.40:1AaAa
Slate 1002.29:1AaAa
Slate 2002.04:1AaAa
Slate 3001.69:1AaAa
Slate 4001.02:1AaAa
Slate 5001.90:1AaAa
Slate 6003.02:1AaAa
Slate 7004.12:1AaAa
Slate 8005.83:1AaAa
Slate 9007.11:1AaAa
Black8.36:1AaAa
Colour vision deficiency
true color
protanopia · #B9A200
deuteranopia · #B9A520
tritanopia · #AEA091

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. #a2ab03 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.

#FDFDF1
#FAFCE4
#F7FBC1
#F7FD91
#F3FC5A
#F0FB22
#E4F104
#BEC903
#a2ab03
#6E7407
#454804
Base = 800Lightest = 50 · #FDFDF1Darkest = 950 · #454804Text 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 0.040 113.5);
  --brand-100: oklch(0.94 0.063 113.5);
  --brand-200: oklch(0.88 0.095 113.5);
  --brand-300: oklch(0.80 0.124 113.5);
  --brand-400: oklch(0.72 0.146 113.5);
  --brand-500: oklch(0.64 0.158 113.5);
  --brand-600: oklch(0.56 0.158 113.5);
  --brand-700: oklch(0.48 0.149 113.5);
  --brand-800: oklch(0.40 0.133 113.5);
  --brand-900: oklch(0.32 0.111 113.5);
  --brand-950: oklch(0.24 0.087 113.5);
}

Colors that work with #a2ab03

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#0022AE
Second voice, not a rival
Dark variant#777D02
Hover, pressed, headers
Light variant#FDFFE6
Selected rows, tints
Dark surface#242414
Dark-mode background
Hover#818802
One step down in lightness
Pressed#5F6502
Two steps down
Disabled#A5A876
Chroma pulled out
Focus ring#B8C200
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 #a2ab03

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 #777D02
Safe as a 1px border on white
No — use #8F9703

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
  • Weight66/100
  • 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#0C03AB
Analogous left#AB6003
Analogous right#4EAB03
Split-complement 1#034EAB
Split-complement 2#6003AB
Triadic 1#03A2AB
Triadic 2#AB03A2
Tetradic#03AB60
On the wheel
Base+30°−30°+120°+240°+180°63°

#a2ab03 sits at 63°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red63.5%
Green67.1%
Blue1.2%
R · 0–255
162
0xa2
G · 0–255
171
0xab
B · 0–255
3
0x03

CMYK percentages

Cyan5.3%
Magenta0.0%
Yellow98.2%
Key (black)32.9%

Total ink coverage is 136%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#a2ab03 text on a black background

contrast 8.36:1

Card sample

#a2ab03 text on a white background

contrast 2.51:1

Card sample

#a2ab03 on grey

2.29:1

#a2ab03 on its own surface

2.40:1

#a2ab03 on its dark surface

6.25:1

CSS3 live lab

Text font color

The quick brown fox

color: #a2ab03;
Background color
Panel with #a2ab03 background
background-color: #a2ab03;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #a2ab03;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(162, 171, 3, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(162, 171, 3, 0.45);
Border & gradient
Gradient panel
border: 3px solid #a2ab03;
background: linear-gradient(135deg, #a2ab03, #32AB03);
Gradient text

Gradient headline

background: linear-gradient(90deg, #a2ab03, #08AB03);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #a2ab03;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #a2ab03;
caret-color: #a2ab03;
Left rule
Pull quote or callout
border-left: 4px solid #a2ab03;
Ring + tint
Selected chip
background: #FDFFE6;
box-shadow: inset 0 0 0 2px #a2ab03;
Conic badge
68%
background: conic-gradient(#a2ab03 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #a2ab03 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(162, 171, 3, 0.5)
rgb(162 171 3 / 50%)
#a2ab0380
hsl(63 97% 34% / 50%)
color-mix(in srgb, #a2ab03 50%, transparent)
Alpha8-digit hexFlat on white
10%#a2ab031a#F6F7E6
20%#a2ab0333#ECEECD
40%#a2ab0366#DADD9A
60%#a2ab0399#C7CD68
80%#a2ab03cc#B5BC35

Gradients from #a2ab03

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, #DBE704, #a2ab03 45%, #777D02);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #a2ab03, #1E8D02);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #a2ab03, #0C03AB);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #EEFB0F 0%, #a2ab03 45%, #777D02 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%, #DD6A04 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #4BC903 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #777D02 0%, transparent 65%), #a2ab03;

Monochromatic scale

Palettes built from #a2ab03

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.

#a2ab03 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 8.36:1.

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.

#a2ab03, answered

What color is #a2ab03?

#a2ab03 is a dark electric yellow, closest to Dark Khaki (ΔE2000 10.3). It sits at 63° on the hue wheel with 97% saturation and 34% lightness, which reads as warm.

What is the RGB value of #a2ab03?

rgb(162, 171, 3) — 162 red, 171 green and 3 blue out of 255, or 63.5% / 67.1% / 1.2% by channel.

What is #a2ab03 in HSL and HSV?

hsl(63, 97%, 34%) and hsv(63, 98%, 67%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #a2ab03 a light or a dark color?

It is a mid-tone. Relative luminance is 0.3681 and perceived brightness is 62%, so black text on it reaches 8.36:1.

Should I use black or white text on #a2ab03?

Black. It scores 8.36:1 against #a2ab03, versus 2.51:1 for white — AAA at any size.

Is #a2ab03 accessible on a white background?

#a2ab03 on white scores 2.51:1, which fails WCAG AA at every size. Darken it to #727902 to reach 4.5:1, or #565B02 for 7:1.

What is the complementary color of #a2ab03?

#0C03AB sits directly opposite on the wheel. Softer options are the split-complements #034EAB and #6003AB, which give the same contrast with far less vibration.

What colors go well with #a2ab03?

For interface work: #FAFAF4 as the surface, #EAEDC0 for borders, #979B4B for secondary text, #0022AE as an accent and #777D02 for hover and pressed states. For a palette, the analogous pair #AB6003 and #4EAB03 stays calm, while #0C03AB is the loudest partner.

What is #a2ab03 in CMYK for printing?

cmyk(5%, 0%, 98%, 33%). 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 #a2ab03 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 #AB7603; nudged cooler, #65AD01.

Which Tailwind color is closest to #a2ab03?

The lime family — its 500 step is #84cc16, ΔE2000 12.7 away. That is a visible difference, so define #a2ab03 as a custom token rather than reaching for the built-in.

How do I use #a2ab03 in Tailwind CSS?

Inline it as an arbitrary value with bg-[#a2ab03] or text-[#a2ab03], 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 #a2ab03 with 50% opacity?

rgba(162, 171, 3, 0.5), or #a2ab0380 in eight-digit hex. Over white that composites to #D1D581; over black, #515602.

Is #a2ab03 a web-safe color?

No. The nearest web-safe colour is #999900, ΔE2000 5.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #a2ab03 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 #a2ab03?

The safest is same-hue elevation: linear-gradient(135deg, #DBE704, #a2ab03 45%, #777D02). For more colour, a short hue run to #1E8D02 keeps it rich without turning muddy.

Work with #a2ab03 in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #a2ab03 at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.