Skip to content
yellow · warm

#d3f02a

a balanced, electric yellow · warm · closest name: Yellow

Token name suggestion: Signal Citron

RGB
211, 240, 42
HSL
69°, 87%, 55%
CMYK
12, 0, 83, 6
Luminance
0.7634

#d3f02a is a balanced electric yellow, 69° on the wheel and 32/100 on the cool side. Put black text on it (16.27:1). As text it scores 1.29:1 on white — use #6C7D09 instead. Nearest name is Yellow, nearest Tailwind family is lime.

hsl(69 87% 55%)rgb(211 240 42)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #d3f02a is made of, how bright it looks, and which way it leans.

Hex
#d3f02a
Hue
69°
yellow
Saturation
87%
electric
Lightness
55%
balanced
Brightness
94%
HSV value
Perceived
85%
weighted brightness
Luminance
0.7634
WCAG relative
Temperature
Warm
32/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
16.27:1
Closest name
Yellow
ΔE2000 7.7
Chroma
88.1
LCH, 0–130ish
OKLCH L
0.903
perceptual lightness
Tailwind
lime
500 · ΔE 12.8
Web-safe
#CCFF33
nearest of 216
Where it sits
Hue69° of 360°
Saturation87%
Lightness55%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #d3f02a.

Temperature
Warm ← → Cool32% 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
Red18%
Green82%
Blue0%

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

Every format

HEX#d3f02a
HEX (8-digit)#d3f02aff
RGBrgb(211, 240, 42)
RGBArgba(211, 240, 42, 1)
HSLhsl(69, 87%, 55%)
HSV / HSBhsv(69, 83%, 94%)
HWBhwb(69 16% 6%)
CMYKcmyk(12%, 0%, 83%, 6%)
LABlab(90.0 -31.8 82.2)
LCHlch(90.0 88.1 111.1)
OKLCHoklch(0.903 0.202 118.4)
XYZ (D65)xyz(58.44, 76.34, 13.85)
Decimal13889578
Display P3color(display-p3 0.827 0.941 0.165)
Web-safe#CCFF33

Copy-ready code

every platformclick to select
/* CSS */
color: #d3f02a;
background-color: #d3f02a;
/* CSS custom property */
--brand: #d3f02a;
/* Tailwind (arbitrary) */
class="text-[#d3f02a] bg-[#d3f02a]"
/* SCSS */
$brand: #d3f02a;
/* SwiftUI */
Color(red: 0.827, green: 0.941, blue: 0.165)
/* UIKit */
UIColor(red: 0.827, green: 0.941, blue: 0.165, alpha: 1)
/* Android XML */
<color name="brand">#D3F02A</color>
/* Android Compose */
Color(0xFFD3F02A)
/* Flutter */
Color(0xFFD3F02A)
/* Python / OpenCV (BGR) */
(42, 240, 211)
/* Python / PIL (RGB) */
(211, 240, 42)
/* Java AWT */
new Color(211, 240, 42)
/* .NET */
Color.FromArgb(255, 211, 240, 42)
/* OpenGL / Unity (0–1) */
(0.8275f, 0.9412f, 0.1647f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{211,240,42}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #d3f02a 85%, white);
border-color: color-mix(in oklab, #d3f02a 40%, transparent);
/* theme-aware in one line */
color: light-dark(#677708, #EAEED3);
/* relative colour syntax */
--hover: hsl(from #d3f02a 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: #FBFDF2;
  --brand-100: #F7FAE5;
  --brand-200: #F0F7C4;
  --brand-300: #E9F896;
  --brand-400: #DEF462;
  --brand-500: #d3f02a;
  --brand-600: #C5E510;
  --brand-700: #A5BF0D;
  --brand-800: #84980B;
  --brand-900: #606E0C;
  --brand-950: #3C4508;
  --brand: #d3f02a;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #E6EDC0;
  --brand-hover: #C7E610;
  --brand-pressed: #AAC50E;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #222414;
    --brand-ink: #EAEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FBFDF2',
        100: '#F7FAE5',
        200: '#F0F7C4',
        300: '#E9F896',
        400: '#DEF462',
        500: '#d3f02a',
        600: '#C5E510',
        700: '#A5BF0D',
        800: '#84980B',
        900: '#606E0C',
        950: '#3C4508',
        DEFAULT: '#d3f02a',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FBFDF2,
  '100': #F7FAE5,
  '200': #F0F7C4,
  '300': #E9F896,
  '400': #DEF462,
  '500': #d3f02a,
  '600': #C5E510,
  '700': #A5BF0D,
  '800': #84980B,
  '900': #606E0C,
  '950': #3C4508,
);
$brand-base: #d3f02a;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FBFDF2", "$type": "color" },
      "100": { "$value": "#F7FAE5", "$type": "color" },
      "200": { "$value": "#F0F7C4", "$type": "color" },
      "300": { "$value": "#E9F896", "$type": "color" },
      "400": { "$value": "#DEF462", "$type": "color" },
      "500": { "$value": "#d3f02a", "$type": "color" },
      "600": { "$value": "#C5E510", "$type": "color" },
      "700": { "$value": "#A5BF0D", "$type": "color" },
      "800": { "$value": "#84980B", "$type": "color" },
      "900": { "$value": "#606E0C", "$type": "color" },
      "950": { "$value": "#3C4508", "$type": "color" }
    },
    "brandInk": { "$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 #d3f02a · 16.27:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.29:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.27:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #d3f02a as text scores 1.29:1 on white and 16.27:1 on black.
Best tinted ink on it, if plain black or white feels flat: #677708 at 3.86:1.

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
#6C7D09 · 4.59:1
AA on white−29% L
#6C7D09
The quick fox
#4F5C06 · 7.33:1
AAA on white−36% L
#4F5C06
The quick fox
#d3f02a · 16.27:1
AA on blackalready passes
#d3f02a
The quick fox
#d3f02a · 16.27:1
AAA on blackalready passes
#d3f02a

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #859A0B 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
#d3f02a on white: 1.29:1
AA ✗ fail · AA-large · AAA
Aa
#d3f02a on black: 16.27:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #d3f02a as text on that neutral, and that neutral as text on #d3f02a.

NeutralRatioBoth directions
White1.29:1AaAa
Slate 501.23:1AaAa
Slate 1001.18:1AaAa
Slate 2001.05:1AaAa
Slate 3001.15:1AaAa
Slate 4001.99:1AaAa
Slate 5003.69:1AaAa
Slate 6005.87:1AaAa
Slate 7008.02:1AaAa
Slate 80011.33:1AaAa
Slate 90013.83:1AaAa
Black16.27:1AaAa
Colour vision deficiency
true color
protanopia · #FFE200
deuteranopia · #FDE341
tritanopia · #E0E2CD

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. #d3f02a is pinned to step 500; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FBFDF2
#F7FAE5
#F0F7C4
#E9F896
#DEF462
#d3f02a
#C5E510
#A5BF0D
#84980B
#606E0C
#3C4508
Base = 500Lightest = 50 · #FBFDF2Darkest = 950 · #3C4508Text 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 0.051 118.4);
  --brand-100: oklch(0.94 0.081 118.4);
  --brand-200: oklch(0.88 0.121 118.4);
  --brand-300: oklch(0.80 0.158 118.4);
  --brand-400: oklch(0.72 0.186 118.4);
  --brand-500: oklch(0.64 0.202 118.4);
  --brand-600: oklch(0.56 0.202 118.4);
  --brand-700: oklch(0.48 0.190 118.4);
  --brand-800: oklch(0.40 0.170 118.4);
  --brand-900: oklch(0.32 0.141 118.4);
  --brand-950: oklch(0.24 0.111 118.4);
}

Colors that work with #d3f02a

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#E6EDC0
Hairlines and dividers
Muted text#8F9B4B
Captions on the surface
Accent#263BF5
Second voice, not a rival
Dark variant#677708
Hover, pressed, headers
Light variant#FAFDE7
Selected rows, tints
Dark surface#222414
Dark-mode background
Hover#C7E610
One step down in lightness
Pressed#AAC50E
Two steps down
Disabled#CED2B8
Chroma pulled out
Focus ring#DEFC33
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 #d3f02a

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
  • Brand accents, badges and data highlights
  • Chart series and data categories
Use with care
  • Text of any size on white — fails WCAG AA
  • Full-page backgrounds — tiring over long sessions
  • 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 #677708
Safe as a 1px border on white
No — use #859A0B

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 mid lightness keeps it versatile in both themes.

Worth knowing

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

Reads as
  • FormalityLow
  • EnergyHigh
  • Weight45/100
  • 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#472AF0
Analogous left#F0AA2A
Analogous right#70F02A
Split-complement 1#2A70F0
Split-complement 2#AA2AF0
Triadic 1#2AD3F0
Triadic 2#F02AD3
Tetradic#2AF0AA
On the wheel
Base+30°−30°+120°+240°+180°69°

#d3f02a sits at 69°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red82.7%
Green94.1%
Blue16.5%
R · 0–255
211
0xd3
G · 0–255
240
0xf0
B · 0–255
42
0x2a

CMYK percentages

Cyan12.1%
Magenta0.0%
Yellow82.5%
Key (black)5.9%

Total ink coverage is 101%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#d3f02a text on a black background

contrast 16.27:1

Card sample

#d3f02a text on a white background

contrast 1.29:1

Card sample

#d3f02a on grey

1.18:1

#d3f02a on its own surface

1.23:1

#d3f02a on its dark surface

12.23:1

CSS3 live lab

Text font color

The quick brown fox

color: #d3f02a;
Background color
Panel with #d3f02a background
background-color: #d3f02a;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #d3f02a;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(211, 240, 42, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(211, 240, 42, 0.45);
Border & gradient
Gradient panel
border: 3px solid #d3f02a;
background: linear-gradient(135deg, #d3f02a, #4FF02A);
Gradient text

Gradient headline

background: linear-gradient(90deg, #d3f02a, #2AF037);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #d3f02a;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #d3f02a;
caret-color: #d3f02a;
Left rule
Pull quote or callout
border-left: 4px solid #d3f02a;
Ring + tint
Selected chip
background: #FAFDE7;
box-shadow: inset 0 0 0 2px #d3f02a;
Conic badge
68%
background: conic-gradient(#d3f02a 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #d3f02a 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(211, 240, 42, 0.5)
rgb(211 240 42 / 50%)
#d3f02a80
hsl(69 87% 55% / 50%)
color-mix(in srgb, #d3f02a 50%, transparent)
Alpha8-digit hexFlat on white
10%#d3f02a1a#FBFEEA
20%#d3f02a33#F6FCD4
40%#d3f02a66#EDF9AA
60%#d3f02a99#E5F67F
80%#d3f02acc#DCF355

Gradients from #d3f02a

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, #DFF463, #d3f02a 45%, #677708);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #d3f02a, #27EB11);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #d3f02a, #472AF0);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E5F680 0%, #d3f02a 45%, #677708 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%, #F3B05A 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #75F247 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #677708 0%, transparent 65%), #d3f02a;

Monochromatic scale

Palettes built from #d3f02a

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.

#d3f02a 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 16.27:1.

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.

#d3f02a, answered

What color is #d3f02a?

#d3f02a is a balanced electric yellow, closest to Yellow (ΔE2000 7.7). It sits at 69° on the hue wheel with 87% saturation and 55% lightness, which reads as warm.

What is the RGB value of #d3f02a?

rgb(211, 240, 42) — 211 red, 240 green and 42 blue out of 255, or 82.7% / 94.1% / 16.5% by channel.

What is #d3f02a in HSL and HSV?

hsl(69, 87%, 55%) and hsv(69, 83%, 94%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #d3f02a a light or a dark color?

It is a light color. Relative luminance is 0.7634 and perceived brightness is 85%, so black text on it reaches 16.27:1.

Should I use black or white text on #d3f02a?

Black. It scores 16.27:1 against #d3f02a, versus 1.29:1 for white — AAA at any size.

Is #d3f02a accessible on a white background?

#d3f02a on white scores 1.29:1, which fails WCAG AA at every size. Darken it to #6C7D09 to reach 4.5:1, or #4F5C06 for 7:1.

What is the complementary color of #d3f02a?

#472AF0 sits directly opposite on the wheel. Softer options are the split-complements #2A70F0 and #AA2AF0, which give the same contrast with far less vibration.

What colors go well with #d3f02a?

For interface work: #FAFAF4 as the surface, #E6EDC0 for borders, #8F9B4B for secondary text, #263BF5 as an accent and #677708 for hover and pressed states. For a palette, the analogous pair #F0AA2A and #70F02A stays calm, while #472AF0 is the loudest partner.

What is #d3f02a in CMYK for printing?

cmyk(12%, 0%, 83%, 6%). 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 #d3f02a warm or cool?

Warm — it scores 32 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #F0C42A; nudged cooler, #8AF228.

Which Tailwind color is closest to #d3f02a?

The lime family — its 500 step is #84cc16, ΔE2000 12.8 away. That is a visible difference, so define #d3f02a as a custom token rather than reaching for the built-in.

How do I use #d3f02a in Tailwind CSS?

Inline it as an arbitrary value with bg-[#d3f02a] or text-[#d3f02a], 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 #d3f02a with 50% opacity?

rgba(211, 240, 42, 0.5), or #d3f02a80 in eight-digit hex. Over white that composites to #E9F895; over black, #6A7815.

Is #d3f02a a web-safe color?

No. The nearest web-safe colour is #CCFF33, ΔE2000 4.3 away. The palette only matters for legacy displays and some email clients now.

What does the color #d3f02a 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 #d3f02a?

The safest is same-hue elevation: linear-gradient(135deg, #DFF463, #d3f02a 45%, #677708). For more colour, a short hue run to #27EB11 keeps it rich without turning muddy.

Work with #d3f02a in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #d3f02a at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.