#403D0D#403D0D

#403D0D is a dark, moderate yellow. Relative luminance 0.045; OKLCH L 35.3% C 0.066 H 105.7°. Best body text is #FFFFFF at 11.10:1 contrast (WCAG AA passes).

Color values

HEX	#403D0D
RGB	rgb(64, 61, 13)
HSL	hsl(56, 66%, 15%)
HSV	hsv(56, 80%, 25%)
CMYK	cmyk(0%, 4.7%, 79.7%, 74.9%)
CIE-LAB	lab(25.13, -5.47, 28.50)
CIE-LCH	lch(25.13, 29.02, 100.86°)
OKLab	oklab(35.27% -0.0179 0.0634)
OKLCH	oklch(35.27% 0.066 105.7)
XYZ	xyz(3.8559, 4.4567, 1.0378)
Luminance	0.0446 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D0D #0D1040

analogous

#40240D #403D0D #29400D

triadic

#403D0D #0D403D #3D0D40

tetradic

#403D0D #0D4024 #0D1040 #400D29

square

#403D0D #0D4024 #0D1040 #400D29

split-complementary

#403D0D #0D2940 #240D40

monochromatic

#191805 #191805 #403D0D #736D17 #A69E22

Accessibility & contrast

On white

11.10

#403D0D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#403D0D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D0D

11.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D0D	#FFFFFF	#000000	##FFFFFF
##403D0D	1.00	11.10	1.89	11.10
#FFFFFF	11.10	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#433A06

Deuteranopia (green-blind)

#443D10

Tritanopia (blue-blind)

#453834

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #403d0d;
/* rgb */ color: rgb(64, 61, 13);
/* oklch */ color: oklch(35.3% 0.066 105.7);

Tailwind

colors: {
  custom: {
    50: '#77724f',
    500: '#403d0d',
    950: '#000000',
  },
}

SCSS

$custom: #403d0d;
$custom-light: #77724f;
$custom-dark: #000000;

JSON

{
  "hex": "#403d0d",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 13
  },
  "hsl": {
    "h": 56.471,
    "s": 66.234,
    "l": 15.098
  },
  "oklch": {
    "l": 0.35267,
    "c": 0.06587,
    "h": 105.7
  },
  "luminance": 0.04457
}

Semantic roles & 50–950 ramp

primary

#403D0D

secondary

#2D327C

accent

#49E93F

background

#F7F6F4

surface

#EDECE7

border

#C8C7C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #403D0D

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

Preview Lab → · Contrast checker → · Palette generator →