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yellow · warm

#cfdc1c

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

Token name suggestion: True Citron

RGB
207, 220, 28
HSL
64°, 77%, 49%
CMYK
6, 0, 87, 14
Luminance
0.6454

#cfdc1c is a balanced electric yellow, 64° on the wheel and 28/100 on the cool side. Put black text on it (13.91:1). As text it scores 1.51:1 on white — use #71780F instead. Nearest name is Yellow, nearest Tailwind family is lime.

hsl(64 77% 49%)rgb(207 220 28)Base step 600AAA inkWarm

At a glance

Every number on this page in one read: what #cfdc1c is made of, how bright it looks, and which way it leans.

Hex
#cfdc1c
Hue
64°
yellow
Saturation
77%
electric
Lightness
49%
balanced
Brightness
86%
HSV value
Perceived
80%
weighted brightness
Luminance
0.6454
WCAG relative
Temperature
Warm
28/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
13.91:1
Closest name
Yellow
ΔE2000 9
Chroma
83.8
LCH, 0–130ish
OKLCH L
0.856
perceptual lightness
Tailwind
lime
500 · ΔE 12.4
Web-safe
#CCCC33
nearest of 216
Where it sits
Hue64° of 360°
Saturation77%
Lightness49%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #cfdc1c.

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#cfdc1c
HEX (8-digit)#cfdc1cff
RGBrgb(207, 220, 28)
RGBArgba(207, 220, 28, 1)
HSLhsl(64, 77%, 49%)
HSV / HSBhsv(64, 87%, 86%)
HWBhwb(64 11% 14%)
CMYKcmyk(6%, 0%, 87%, 14%)
LABlab(84.2 -24.4 80.1)
LCHlch(84.2 83.8 106.9)
OKLCHoklch(0.856 0.188 114.1)
XYZ (D65)xyz(51.54, 64.54, 10.84)
Decimal13622300
Display P3color(display-p3 0.812 0.863 0.110)
Web-safe#CCCC33

Copy-ready code

every platformclick to select
/* CSS */
color: #cfdc1c;
background-color: #cfdc1c;
/* CSS custom property */
--brand: #cfdc1c;
/* Tailwind (arbitrary) */
class="text-[#cfdc1c] bg-[#cfdc1c]"
/* SCSS */
$brand: #cfdc1c;
/* SwiftUI */
Color(red: 0.812, green: 0.863, blue: 0.110)
/* UIKit */
UIColor(red: 0.812, green: 0.863, blue: 0.110, alpha: 1)
/* Android XML */
<color name="brand">#CFDC1C</color>
/* Android Compose */
Color(0xFFCFDC1C)
/* Flutter */
Color(0xFFCFDC1C)
/* Python / OpenCV (BGR) */
(28, 220, 207)
/* Python / PIL (RGB) */
(207, 220, 28)
/* Java AWT */
new Color(207, 220, 28)
/* .NET */
Color.FromArgb(255, 207, 220, 28)
/* OpenGL / Unity (0–1) */
(0.8118f, 0.8627f, 0.1098f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{207,220,28}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #cfdc1c 85%, white);
border-color: color-mix(in oklab, #cfdc1c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#6A710E, #ECEED3);
/* relative colour syntax */
--hover: hsl(from #cfdc1c 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: #FBFCF3;
  --brand-100: #F8F9E6;
  --brand-200: #F1F4C7;
  --brand-300: #ECF29B;
  --brand-400: #E3EC6A;
  --brand-500: #DAE638;
  --brand-600: #cfdc1c;
  --brand-700: #AAB517;
  --brand-800: #889112;
  --brand-900: #636912;
  --brand-950: #3E410B;
  --brand: #cfdc1c;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #EAEDC0;
  --brand-hover: #B1BC18;
  --brand-pressed: #939D14;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #232414;
    --brand-ink: #ECEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FBFCF3',
        100: '#F8F9E6',
        200: '#F1F4C7',
        300: '#ECF29B',
        400: '#E3EC6A',
        500: '#DAE638',
        600: '#cfdc1c',
        700: '#AAB517',
        800: '#889112',
        900: '#636912',
        950: '#3E410B',
        DEFAULT: '#cfdc1c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FBFCF3,
  '100': #F8F9E6,
  '200': #F1F4C7,
  '300': #ECF29B,
  '400': #E3EC6A,
  '500': #DAE638,
  '600': #cfdc1c,
  '700': #AAB517,
  '800': #889112,
  '900': #636912,
  '950': #3E410B,
);
$brand-base: #cfdc1c;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FBFCF3", "$type": "color" },
      "100": { "$value": "#F8F9E6", "$type": "color" },
      "200": { "$value": "#F1F4C7", "$type": "color" },
      "300": { "$value": "#ECF29B", "$type": "color" },
      "400": { "$value": "#E3EC6A", "$type": "color" },
      "500": { "$value": "#DAE638", "$type": "color" },
      "600": { "$value": "#cfdc1c", "$type": "color" },
      "700": { "$value": "#AAB517", "$type": "color" },
      "800": { "$value": "#889112", "$type": "color" },
      "900": { "$value": "#636912", "$type": "color" },
      "950": { "$value": "#3E410B", "$type": "color" }
    },
    "brandInk": { "$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 #cfdc1c · 13.91:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.51:1
AA fail · AA large fail · AAA fail
Aa
Black text · 13.91:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #cfdc1c as text scores 1.51:1 on white and 13.91:1 on black.
Best tinted ink on it, if plain black or white feels flat: #6A710E at 3.49:1.

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
#71780F · 4.78:1
AA on white−22% L
#71780F
The quick fox
#585D0C · 7.03:1
AAA on white−28% L
#585D0C
The quick fox
#cfdc1c · 13.91:1
AA on blackalready passes
#cfdc1c
The quick fox
#cfdc1c · 13.91:1
AAA on blackalready passes
#cfdc1c

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #8F9813 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
#cfdc1c on white: 1.51:1
AA ✗ fail · AA-large · AAA
Aa
#cfdc1c on black: 13.91:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #cfdc1c as text on that neutral, and that neutral as text on #cfdc1c.

NeutralRatioBoth directions
White1.51:1AaAa
Slate 501.44:1AaAa
Slate 1001.38:1AaAa
Slate 2001.22:1AaAa
Slate 3001.02:1AaAa
Slate 4001.70:1AaAa
Slate 5003.15:1AaAa
Slate 6005.02:1AaAa
Slate 7006.86:1AaAa
Slate 8009.69:1AaAa
Slate 90011.82:1AaAa
Black13.91:1AaAa
Colour vision deficiency
true color
protanopia · #EDD100
deuteranopia · #ECD434
tritanopia · #DDCEBC

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. #cfdc1c is pinned to step 600; the rest hold its hue and let saturation ease off at the extremes so the pale end never turns neon.

#FBFCF3
#F8F9E6
#F1F4C7
#ECF29B
#E3EC6A
#DAE638
#cfdc1c
#AAB517
#889112
#636912
#3E410B
Base = 600Lightest = 50 · #FBFCF3Darkest = 950 · #3E410BText 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 0.047 114.1);
  --brand-100: oklch(0.94 0.075 114.1);
  --brand-200: oklch(0.88 0.112 114.1);
  --brand-300: oklch(0.80 0.146 114.1);
  --brand-400: oklch(0.72 0.173 114.1);
  --brand-500: oklch(0.64 0.188 114.1);
  --brand-600: oklch(0.56 0.188 114.1);
  --brand-700: oklch(0.48 0.176 114.1);
  --brand-800: oklch(0.40 0.158 114.1);
  --brand-900: oklch(0.32 0.131 114.1);
  --brand-950: oklch(0.24 0.103 114.1);
}

Colors that work with #cfdc1c

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#959B4B
Captions on the surface
Accent#173CE1
Second voice, not a rival
Dark variant#6A710E
Hover, pressed, headers
Light variant#FBFCE8
Selected rows, tints
Dark surface#232414
Dark-mode background
Hover#B1BC18
One step down in lightness
Pressed#939D14
Two steps down
Disabled#C2C5A4
Chroma pulled out
Focus ring#E1F01C
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 #cfdc1c

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 #6A710E
Safe as a 1px border on white
No — use #8F9813

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
  • Weight51/100
  • 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#291CDC
Analogous left#DC891C
Analogous right#6FDC1C
Split-complement 1#1C6FDC
Split-complement 2#891CDC
Triadic 1#1CCFDC
Triadic 2#DC1CCF
Tetradic#1CDC89
On the wheel
Base+30°−30°+120°+240°+180°64°

#cfdc1c sits at 64°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red81.2%
Green86.3%
Blue11.0%
R · 0–255
207
0xcf
G · 0–255
220
0xdc
B · 0–255
28
0x1c

CMYK percentages

Cyan5.9%
Magenta0.0%
Yellow87.3%
Key (black)13.7%

Total ink coverage is 107%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#cfdc1c text on a black background

contrast 13.91:1

Card sample

#cfdc1c text on a white background

contrast 1.51:1

Card sample

#cfdc1c on grey

1.38:1

#cfdc1c on its own surface

1.44:1

#cfdc1c on its dark surface

10.43:1

CSS3 live lab

Text font color

The quick brown fox

color: #cfdc1c;
Background color
Panel with #cfdc1c background
background-color: #cfdc1c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #cfdc1c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(207, 220, 28, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(207, 220, 28, 0.45);
Border & gradient
Gradient panel
border: 3px solid #cfdc1c;
background: linear-gradient(135deg, #cfdc1c, #4FDC1C);
Gradient text

Gradient headline

background: linear-gradient(90deg, #cfdc1c, #1FDC1C);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #cfdc1c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #cfdc1c;
caret-color: #cfdc1c;
Left rule
Pull quote or callout
border-left: 4px solid #cfdc1c;
Ring + tint
Selected chip
background: #FBFCE8;
box-shadow: inset 0 0 0 2px #cfdc1c;
Conic badge
68%
background: conic-gradient(#cfdc1c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #cfdc1c 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(207, 220, 28, 0.5)
rgb(207 220 28 / 50%)
#cfdc1c80
hsl(64 77% 49% / 50%)
color-mix(in srgb, #cfdc1c 50%, transparent)
Alpha8-digit hexFlat on white
10%#cfdc1c1a#FAFCE8
20%#cfdc1c33#F5F8D2
40%#cfdc1c66#ECF1A4
60%#cfdc1c99#E2EA77
80%#cfdc1ccc#D9E349

Gradients from #cfdc1c

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, #DEE84D, #cfdc1c 45%, #6A710E);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #cfdc1c, #37C119);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #cfdc1c, #291CDC);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #E3EC68 0%, #cfdc1c 45%, #6A710E 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%, #E79344 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #70E532 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #6A710E 0%, transparent 65%), #cfdc1c;

Monochromatic scale

Palettes built from #cfdc1c

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.

#cfdc1c 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 13.91:1.

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.

#cfdc1c, answered

What color is #cfdc1c?

#cfdc1c is a balanced electric yellow, closest to Yellow (ΔE2000 9). It sits at 64° on the hue wheel with 77% saturation and 49% lightness, which reads as warm.

What is the RGB value of #cfdc1c?

rgb(207, 220, 28) — 207 red, 220 green and 28 blue out of 255, or 81.2% / 86.3% / 11% by channel.

What is #cfdc1c in HSL and HSV?

hsl(64, 77%, 49%) and hsv(64, 87%, 86%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #cfdc1c a light or a dark color?

It is a light color. Relative luminance is 0.6454 and perceived brightness is 80%, so black text on it reaches 13.91:1.

Should I use black or white text on #cfdc1c?

Black. It scores 13.91:1 against #cfdc1c, versus 1.51:1 for white — AAA at any size.

Is #cfdc1c accessible on a white background?

#cfdc1c on white scores 1.51:1, which fails WCAG AA at every size. Darken it to #71780F to reach 4.5:1, or #585D0C for 7:1.

What is the complementary color of #cfdc1c?

#291CDC sits directly opposite on the wheel. Softer options are the split-complements #1C6FDC and #891CDC, which give the same contrast with far less vibration.

What colors go well with #cfdc1c?

For interface work: #FAFAF4 as the surface, #EAEDC0 for borders, #959B4B for secondary text, #173CE1 as an accent and #6A710E for hover and pressed states. For a palette, the analogous pair #DC891C and #6FDC1C stays calm, while #291CDC is the loudest partner.

What is #cfdc1c in CMYK for printing?

cmyk(6%, 0%, 87%, 14%). 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 #cfdc1c 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 #DCA41C; nudged cooler, #89DE1A.

Which Tailwind color is closest to #cfdc1c?

The lime family — its 500 step is #84cc16, ΔE2000 12.4 away. That is a visible difference, so define #cfdc1c as a custom token rather than reaching for the built-in.

How do I use #cfdc1c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#cfdc1c] or text-[#cfdc1c], 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 #cfdc1c with 50% opacity?

rgba(207, 220, 28, 0.5), or #cfdc1c80 in eight-digit hex. Over white that composites to #E7EE8E; over black, #686E0E.

Is #cfdc1c a web-safe color?

No. The nearest web-safe colour is #CCCC33, ΔE2000 4.5 away. The palette only matters for legacy displays and some email clients now.

What does the color #cfdc1c 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 #cfdc1c?

The safest is same-hue elevation: linear-gradient(135deg, #DEE84D, #cfdc1c 45%, #6A710E). For more colour, a short hue run to #37C119 keeps it rich without turning muddy.

Work with #cfdc1c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #cfdc1c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.