#403F04#403F04

#403F04 is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 35.7% C 0.074 H 108.6°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#403F04
RGB	rgb(64, 63, 4)
HSL	hsl(59, 88%, 13%)
HSV	hsv(59, 94%, 25%)
CMYK	cmyk(0%, 1.6%, 93.8%, 74.9%)
CIE-LAB	lab(25.73, -7.19, 32.81)
CIE-LCH	lch(25.73, 33.59, 102.36°)
OKLab	oklab(35.72% -0.0237 0.0706)
OKLCH	oklch(35.72% 0.074 108.6)
XYZ	xyz(3.9139, 4.6539, 0.8070)
Luminance	0.0465 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F04 #040540

analogous

#402104 #403F04 #234004

triadic

#403F04 #04403F #3F0440

tetradic

#403F04 #044021 #040540 #400423

square

#403F04 #044021 #040540 #400423

split-complementary

#403F04 #042340 #210440

monochromatic

#1D1C02 #1D1C02 #403F04 #7A7808 #B3B00B

Accessibility & contrast

On white

10.88

#403F04 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#403F04 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F04

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F04	#FFFFFF	#000000	##FFFFFF
##403F04	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453C00

Deuteranopia (green-blind)

#463E09

Tritanopia (blue-blind)

#453A35

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #403f04;
/* rgb */ color: rgb(64, 63, 4);
/* oklch */ color: oklch(35.7% 0.074 108.6);

Tailwind

colors: {
  custom: {
    50: '#77734b',
    500: '#403f04',
    950: '#000000',
  },
}

SCSS

$custom: #403f04;
$custom-light: #77734b;
$custom-dark: #000000;

JSON

{
  "hex": "#403f04",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 4
  },
  "hsl": {
    "h": 59,
    "s": 88.235,
    "l": 13.333
  },
  "oklch": {
    "l": 0.35724,
    "c": 0.07447,
    "h": 108.6
  },
  "luminance": 0.04654
}

Semantic roles & 50–950 ramp

primary

#403F04

secondary

#1F2081

accent

#2DFE29

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090801

muted

#7B7B77

Preview Lab

Preview with #403F04

Body copy rendered with the generated semantic roles for this colour.

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