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yellow · warm

#dfef3c

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

Token name suggestion: True Brass

RGB
223, 239, 60
HSL
65°, 85%, 59%
CMYK
7, 0, 75, 6
Luminance
0.7775

#dfef3c is a balanced electric yellow, 65° on the wheel and 29/100 on the cool side. Put black text on it (16.55:1). As text it scores 1.27:1 on white — use #737D0A instead. Nearest name is Yellow, nearest Tailwind family is lime.

hsl(65 85% 59%)rgb(223 239 60)Base step 500AAA inkWarm

At a glance

Every number on this page in one read: what #dfef3c is made of, how bright it looks, and which way it leans.

Hex
#dfef3c
Hue
65°
yellow
Saturation
85%
electric
Lightness
59%
balanced
Brightness
94%
HSV value
Perceived
87%
weighted brightness
Luminance
0.7775
WCAG relative
Temperature
Warm
29/100 cool
Color family
Yellow
Tone
Electric
Best ink
Black
16.55:1
Closest name
Yellow
ΔE2000 6.3
Chroma
82.5
LCH, 0–130ish
OKLCH L
0.911
perceptual lightness
Tailwind
lime
500 · ΔE 14.3
Web-safe
#CCFF33
nearest of 216
Where it sits
Hue65° of 360°
Saturation85%
Lightness59%
Saturation × lightness field

Left edge is grey, right edge is full chroma; top is white, bottom is black. The dot is #dfef3c.

Temperature
Warm ← → Cool29% 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
Red20%
Green79%
Blue0%

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

Every format

HEX#dfef3c
HEX (8-digit)#dfef3cff
RGBrgb(223, 239, 60)
RGBArgba(223, 239, 60, 1)
HSLhsl(65, 85%, 59%)
HSV / HSBhsv(65, 75%, 94%)
HWBhwb(65 24% 6%)
CMYKcmyk(7%, 0%, 75%, 6%)
LABlab(90.7 -25.9 78.3)
LCHlch(90.7 82.5 108.3)
OKLCHoklch(0.911 0.189 114.8)
XYZ (D65)xyz(62.12, 77.75, 16.01)
Decimal14675772
Display P3color(display-p3 0.875 0.937 0.235)
Web-safe#CCFF33

Copy-ready code

every platformclick to select
/* CSS */
color: #dfef3c;
background-color: #dfef3c;
/* CSS custom property */
--brand: #dfef3c;
/* Tailwind (arbitrary) */
class="text-[#dfef3c] bg-[#dfef3c]"
/* SCSS */
$brand: #dfef3c;
/* SwiftUI */
Color(red: 0.875, green: 0.937, blue: 0.235)
/* UIKit */
UIColor(red: 0.875, green: 0.937, blue: 0.235, alpha: 1)
/* Android XML */
<color name="brand">#DFEF3C</color>
/* Android Compose */
Color(0xFFDFEF3C)
/* Flutter */
Color(0xFFDFEF3C)
/* Python / OpenCV (BGR) */
(60, 239, 223)
/* Python / PIL (RGB) */
(223, 239, 60)
/* Java AWT */
new Color(223, 239, 60)
/* .NET */
Color.FromArgb(255, 223, 239, 60)
/* OpenGL / Unity (0–1) */
(0.8745f, 0.9373f, 0.2353f, 1f)
/* LaTeX */
\definecolor{brand}{RGB}{223,239,60}
modern cssclick to select
/* mix without leaving CSS */
background: color-mix(in oklab, #dfef3c 85%, white);
border-color: color-mix(in oklab, #dfef3c 40%, transparent);
/* theme-aware in one line */
color: light-dark(#6C760A, #ECEED3);
/* relative colour syntax */
--hover: hsl(from #dfef3c 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: #FCFCF2;
  --brand-100: #F8FAE5;
  --brand-200: #F2F7C5;
  --brand-300: #EEF697;
  --brand-400: #E5F263;
  --brand-500: #dfef3c;
  --brand-600: #D0E213;
  --brand-700: #ADBC10;
  --brand-800: #8A970C;
  --brand-900: #646D0D;
  --brand-950: #3F4408;
  --brand: #dfef3c;
  --brand-ink: #000000;
  --brand-surface: #FAFAF4;
  --brand-border: #E9EDC0;
  --brand-hover: #D9EC1B;
  --brand-pressed: #C1D211;
}
@media (prefers-color-scheme: dark) {
  :root {
    --brand-surface: #232414;
    --brand-ink: #ECEED3;
  }
}
tailwind.config.jsclick to select
theme: {
  extend: {
    colors: {
      brand: {
        50: '#FCFCF2',
        100: '#F8FAE5',
        200: '#F2F7C5',
        300: '#EEF697',
        400: '#E5F263',
        500: '#dfef3c',
        600: '#D0E213',
        700: '#ADBC10',
        800: '#8A970C',
        900: '#646D0D',
        950: '#3F4408',
        DEFAULT: '#dfef3c',
      },
    },
  },
}
scss mapclick to select
$brand: (
  '50': #FCFCF2,
  '100': #F8FAE5,
  '200': #F2F7C5,
  '300': #EEF697,
  '400': #E5F263,
  '500': #dfef3c,
  '600': #D0E213,
  '700': #ADBC10,
  '800': #8A970C,
  '900': #646D0D,
  '950': #3F4408,
);
$brand-base: #dfef3c;
$brand-ink: #000000;

@function brand($step) { @return map-get($brand, $step); }
w3c design tokens (json)click to select
{
  "color": {
    "brand": {
      "50": { "$value": "#FCFCF2", "$type": "color" },
      "100": { "$value": "#F8FAE5", "$type": "color" },
      "200": { "$value": "#F2F7C5", "$type": "color" },
      "300": { "$value": "#EEF697", "$type": "color" },
      "400": { "$value": "#E5F263", "$type": "color" },
      "500": { "$value": "#dfef3c", "$type": "color" },
      "600": { "$value": "#D0E213", "$type": "color" },
      "700": { "$value": "#ADBC10", "$type": "color" },
      "800": { "$value": "#8A970C", "$type": "color" },
      "900": { "$value": "#646D0D", "$type": "color" },
      "950": { "$value": "#3F4408", "$type": "color" }
    },
    "brandInk": { "$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 #dfef3c · 16.55:1
Use #000000AAA at every size.
Aa
12px
Aa
16px
Aa
24px
Aa
White text · 1.27:1
AA fail · AA large fail · AAA fail
Aa
Black text · 16.55:1 · recommended
AA pass · AA large pass · AAA pass
Reading the other direction: #dfef3c as text scores 1.27:1 on white and 16.55:1 on black.
Best tinted ink on it, if plain black or white feels flat: #6C760A at 3.91:1.

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
#737D0A · 4.50:1
AA on white−32% L
#737D0A
The quick fox
#555C08 · 7.19:1
AAA on white−39% L
#555C08
The quick fox
#dfef3c · 16.55:1
AA on blackalready passes
#dfef3c
The quick fox
#dfef3c · 16.55:1
AAA on blackalready passes
#dfef3c

Large text — 24px regular or 18.66px bold and above — only needs 3:1, so #8D9A0D 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
#dfef3c on white: 1.27:1
AA ✗ fail · AA-large · AAA
Aa
#dfef3c on black: 16.55:1
AA ✓ pass · AA-large · AAA
Against the neutral ladder

Contrast is symmetric, so each row covers both directions: #dfef3c as text on that neutral, and that neutral as text on #dfef3c.

NeutralRatioBoth directions
White1.27:1AaAa
Slate 501.21:1AaAa
Slate 1001.16:1AaAa
Slate 2001.03:1AaAa
Slate 3001.17:1AaAa
Slate 4002.02:1AaAa
Slate 5003.75:1AaAa
Slate 6005.97:1AaAa
Slate 7008.16:1AaAa
Slate 80011.53:1AaAa
Slate 90014.07:1AaAa
Black16.55:1AaAa
Colour vision deficiency
true color
protanopia · #FFE30A
deuteranopia · #FFE64C
tritanopia · #EEE1CE

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. #dfef3c 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.

#FCFCF2
#F8FAE5
#F2F7C5
#EEF697
#E5F263
#dfef3c
#D0E213
#ADBC10
#8A970C
#646D0D
#3F4408
Base = 500Lightest = 50 · #FCFCF2Darkest = 950 · #3F4408Text 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 0.047 114.8);
  --brand-100: oklch(0.94 0.076 114.8);
  --brand-200: oklch(0.88 0.114 114.8);
  --brand-300: oklch(0.80 0.148 114.8);
  --brand-400: oklch(0.72 0.174 114.8);
  --brand-500: oklch(0.64 0.189 114.8);
  --brand-600: oklch(0.56 0.189 114.8);
  --brand-700: oklch(0.48 0.178 114.8);
  --brand-800: oklch(0.40 0.159 114.8);
  --brand-900: oklch(0.32 0.133 114.8);
  --brand-950: oklch(0.24 0.104 114.8);
}

Colors that work with #dfef3c

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#E9EDC0
Hairlines and dividers
Muted text#949B4B
Captions on the surface
Accent#3856F3
Second voice, not a rival
Dark variant#6C760A
Hover, pressed, headers
Light variant#FBFDE7
Selected rows, tints
Dark surface#232414
Dark-mode background
Hover#D9EC1B
One step down in lightness
Pressed#C1D211
Two steps down
Disabled#D6D8C3
Chroma pulled out
Focus ring#EAFA45
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 #dfef3c

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 #6C760A
Safe as a 1px border on white
No — use #8D9A0D

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
  • Weight41/100
  • 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#4C3CEF
Analogous left#EFA63C
Analogous right#85EF3C
Split-complement 1#3C85EF
Split-complement 2#A63CEF
Triadic 1#3CDFEF
Triadic 2#EF3CDF
Tetradic#3CEFA6
On the wheel
Base+30°−30°+120°+240°+180°65°

#dfef3c sits at 65°. Every dot is a harmony position and links to its own page in the table alongside.

RGB percentages

Red87.5%
Green93.7%
Blue23.5%
R · 0–255
223
0xdf
G · 0–255
239
0xef
B · 0–255
60
0x3c

CMYK percentages

Cyan6.7%
Magenta0.0%
Yellow74.9%
Key (black)6.3%

Total ink coverage is 88%. Most commercial presses cap around 300% — above that, sheets stop drying properly.

Color previews

#dfef3c text on a black background

contrast 16.55:1

Card sample

#dfef3c text on a white background

contrast 1.27:1

Card sample

#dfef3c on grey

1.16:1

#dfef3c on its own surface

1.21:1

#dfef3c on its dark surface

12.41:1

CSS3 live lab

Text font color

The quick brown fox

color: #dfef3c;
Background color
Panel with #dfef3c background
background-color: #dfef3c;
Text shadow — hex

Glowing headline

text-shadow: 2px 2px 8px #dfef3c;
Text shadow — RGB

Soft neon halo

text-shadow: 0 0 14px rgba(223, 239, 60, 0.45);
Div box shadow
Elevated card
box-shadow: 0 12px 32px -8px rgba(223, 239, 60, 0.45);
Border & gradient
Gradient panel
border: 3px solid #dfef3c;
background: linear-gradient(135deg, #dfef3c, #67EF3C);
Gradient text

Gradient headline

background: linear-gradient(90deg, #dfef3c, #3CEF3D);
-webkit-background-clip: text;
color: transparent;
Focus ring
Focused control
outline: 2px solid #dfef3c;
outline-offset: 3px;
Underline & caret

Marked up text

text-decoration-color: #dfef3c;
caret-color: #dfef3c;
Left rule
Pull quote or callout
border-left: 4px solid #dfef3c;
Ring + tint
Selected chip
background: #FBFDE7;
box-shadow: inset 0 0 0 2px #dfef3c;
Conic badge
68%
background: conic-gradient(#dfef3c 68%, #e2e8f0 0);

Transparency

What each alpha value actually composites to. The top row is #dfef3c 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(223, 239, 60, 0.5)
rgb(223 239 60 / 50%)
#dfef3c80
hsl(65 85% 59% / 50%)
color-mix(in srgb, #dfef3c 50%, transparent)
Alpha8-digit hexFlat on white
10%#dfef3c1a#FCFDEC
20%#dfef3c33#F9FCD8
40%#dfef3c66#F2F9B1
60%#dfef3c99#ECF58A
80%#dfef3ccc#E5F263

Gradients from #dfef3c

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, #E8F474, #dfef3c 45%, #6C760A);
Duotone
A short hue run reads richer than a flat fill
background: linear-gradient(120deg, #dfef3c, #40ED20);
Complement sweep
Loud — keep it behind large type only
background: linear-gradient(90deg, #dfef3c, #4C3CEF);
Spotlight
Hero panels and app headers
background: radial-gradient(120% 120% at 20% 0%, #EDF691 0%, #dfef3c 45%, #6C760A 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%, #F3B06B 0%, transparent 60%), radial-gradient(55% 55% at 85% 15%, #8AF158 0%, transparent 60%), radial-gradient(70% 70% at 50% 95%, #6C760A 0%, transparent 65%), #dfef3c;

Monochromatic scale

Palettes built from #dfef3c

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.

#dfef3c 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 16.55:1.

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.

#dfef3c, answered

What color is #dfef3c?

#dfef3c is a balanced electric yellow, closest to Yellow (ΔE2000 6.3). It sits at 65° on the hue wheel with 85% saturation and 59% lightness, which reads as warm.

What is the RGB value of #dfef3c?

rgb(223, 239, 60) — 223 red, 239 green and 60 blue out of 255, or 87.5% / 93.7% / 23.5% by channel.

What is #dfef3c in HSL and HSV?

hsl(65, 85%, 59%) and hsv(65, 75%, 94%). HSL is what CSS takes; HSV is what your design tool's picker shows, which is why the saturation numbers rarely match.

Is #dfef3c a light or a dark color?

It is a light color. Relative luminance is 0.7775 and perceived brightness is 87%, so black text on it reaches 16.55:1.

Should I use black or white text on #dfef3c?

Black. It scores 16.55:1 against #dfef3c, versus 1.27:1 for white — AAA at any size.

Is #dfef3c accessible on a white background?

#dfef3c on white scores 1.27:1, which fails WCAG AA at every size. Darken it to #737D0A to reach 4.5:1, or #555C08 for 7:1.

What is the complementary color of #dfef3c?

#4C3CEF sits directly opposite on the wheel. Softer options are the split-complements #3C85EF and #A63CEF, which give the same contrast with far less vibration.

What colors go well with #dfef3c?

For interface work: #FAFAF4 as the surface, #E9EDC0 for borders, #949B4B for secondary text, #3856F3 as an accent and #6C760A for hover and pressed states. For a palette, the analogous pair #EFA63C and #85EF3C stays calm, while #4C3CEF is the loudest partner.

What is #dfef3c in CMYK for printing?

cmyk(7%, 0%, 75%, 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 #dfef3c warm or cool?

Warm — it scores 29 on a scale where 0 is the warmest orange and 100 the coolest azure. Nudged warmer it becomes #EFBD3C; nudged cooler, #9DF13A.

Which Tailwind color is closest to #dfef3c?

The lime family — its 500 step is #84cc16, ΔE2000 14.3 away. That is a visible difference, so define #dfef3c as a custom token rather than reaching for the built-in.

How do I use #dfef3c in Tailwind CSS?

Inline it as an arbitrary value with bg-[#dfef3c] or text-[#dfef3c], 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 #dfef3c with 50% opacity?

rgba(223, 239, 60, 0.5), or #dfef3c80 in eight-digit hex. Over white that composites to #EFF79E; over black, #70781E.

Is #dfef3c a web-safe color?

No. The nearest web-safe colour is #CCFF33, ΔE2000 6.1 away. The palette only matters for legacy displays and some email clients now.

What does the color #dfef3c 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 #dfef3c?

The safest is same-hue elevation: linear-gradient(135deg, #E8F474, #dfef3c 45%, #6C760A). For more colour, a short hue run to #40ED20 keeps it rich without turning muddy.

Work with #dfef3c in the Color Lab

Every tool opens with this colour already loaded.

Every value on this page is computed from #dfef3c at request time — conversions, contrast ratios and ΔE distances are calculated, never looked up.