#403C18#403C18

#403C18 is a dark, muted yellow. Relative luminance 0.044; OKLCH L 35.1% C 0.054 H 103.0°. Best body text is #FFFFFF at 11.18:1 contrast (WCAG AA passes).

Color values

HEX	#403C18
RGB	rgb(64, 60, 24)
HSL	hsl(54, 45%, 17%)
HSV	hsv(54, 63%, 25%)
CMYK	cmyk(0%, 6.2%, 62.5%, 74.9%)
CIE-LAB	lab(24.91, -3.97, 22.54)
CIE-LCH	lch(24.91, 22.88, 99.99°)
OKLab	oklab(35.13% -0.0121 0.0527)
OKLCH	oklch(35.13% 0.054 103)
XYZ	xyz(3.8952, 4.3878, 1.5057)
Luminance	0.0439 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C18 #181C40

analogous

#402818 #403C18 #304018

triadic

#403C18 #18403C #3C1840

tetradic

#403C18 #184028 #181C40 #401830

square

#403C18 #184028 #181C40 #401830

split-complementary

#403C18 #183040 #281840

monochromatic

#161508 #161508 #403C18 #6D6629 #998F39

Accessibility & contrast

On white

11.18

#403C18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#403C18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C18

11.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C18	#FFFFFF	#000000	##FFFFFF
##403C18	1.00	11.18	1.88	11.18
#FFFFFF	11.18	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#413A14

Deuteranopia (green-blind)

#433C1A

Tritanopia (blue-blind)

#453834

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #403c18;
/* rgb */ color: rgb(64, 60, 24);
/* oklch */ color: oklch(35.1% 0.054 103.0);

Tailwind

colors: {
  custom: {
    50: '#767156',
    500: '#403c18',
    950: '#000000',
  },
}

SCSS

$custom: #403c18;
$custom-light: #767156;
$custom-dark: #000000;

JSON

{
  "hex": "#403c18",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 24
  },
  "hsl": {
    "h": 54,
    "s": 45.455,
    "l": 17.255
  },
  "oklch": {
    "l": 0.35134,
    "c": 0.05403,
    "h": 103
  },
  "luminance": 0.04388
}

Semantic roles & 50–950 ramp

primary

#403C18

secondary

#3D4377

accent

#60D553

background

#F7F6F5

surface

#EDECE9

border

#C8C7C5

text

#090703

muted

#7B7A78

Preview Lab

Preview with #403C18

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

Preview Lab → · Contrast checker → · Palette generator →