#403F03#403F03

#403F03 is a dark, moderate yellow. Relative luminance 0.047; OKLCH L 35.7% C 0.075 H 108.6°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#403F03
RGB	rgb(64, 63, 3)
HSL	hsl(59, 91%, 13%)
HSV	hsv(59, 95%, 25%)
CMYK	cmyk(0%, 1.6%, 95.3%, 74.9%)
CIE-LAB	lab(25.72, -7.24, 33.21)
CIE-LCH	lch(25.72, 33.99, 102.30°)
OKLab	oklab(35.72% -0.024 0.0712)
OKLCH	oklch(35.72% 0.075 108.6)
XYZ	xyz(3.9085, 4.6517, 0.7781)
Luminance	0.0465 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F03 #030440

analogous

#402003 #403F03 #224003

triadic

#403F03 #03403F #3F0340

tetradic

#403F03 #034020 #030440 #400322

square

#403F03 #034020 #030440 #400322

split-complementary

#403F03 #032240 #200340

monochromatic

#1D1D01 #1D1D01 #403F03 #7A7906 #B5B208

Accessibility & contrast

On white

10.88

#403F03 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#403F03 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F03

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F03	#FFFFFF	#000000	##FFFFFF
##403F03	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)

#463E08

Tritanopia (blue-blind)

#463A34

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #403f03;
/* rgb */ color: rgb(64, 63, 3);
/* oklch */ color: oklch(35.7% 0.075 108.6);

Tailwind

colors: {
  custom: {
    50: '#78734a',
    500: '#403f03',
    950: '#000000',
  },
}

SCSS

$custom: #403f03;
$custom-light: #78734a;
$custom-dark: #000000;

JSON

{
  "hex": "#403f03",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 3
  },
  "hsl": {
    "h": 59.016,
    "s": 91.045,
    "l": 13.137
  },
  "oklch": {
    "l": 0.35717,
    "c": 0.07517,
    "h": 108.6
  },
  "luminance": 0.04652
}

Semantic roles & 50–950 ramp

primary

#403F03

secondary

#1D1E82

accent

#2CFF29

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090801

muted

#7B7B77

Preview Lab

Preview with #403F03

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

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