#40401B#40401B

#40401B is a dark, muted yellow. Relative luminance 0.048; OKLCH L 36.2% C 0.056 H 108.9°. Best body text is #FFFFFF at 10.68:1 contrast (WCAG AA passes).

Color values

HEX	#40401B
RGB	rgb(64, 64, 27)
HSL	hsl(60, 41%, 18%)
HSV	hsv(60, 58%, 25%)
CMYK	cmyk(0%, 0%, 57.8%, 74.9%)
CIE-LAB	lab(26.26, -6.16, 22.38)
CIE-LCH	lch(26.26, 23.21, 105.39°)
OKLab	oklab(36.22% -0.018 0.0527)
OKLCH	oklch(36.22% 0.056 108.9)
XYZ	xyz(4.1457, 4.8360, 1.7518)
Luminance	0.0484 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40401B #1B1B40

analogous

#402D1B #40401B #2D401B

triadic

#40401B #1B4040 #401B40

tetradic

#40401B #1B402D #1B1B40 #401B2D

square

#40401B #1B402D #1B1B40 #401B2D

split-complementary

#40401B #1B2D40 #2D1B40

monochromatic

#161609 #161609 #40401B #6B6B2D #96963F

Accessibility & contrast

On white

10.68

#40401B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#40401B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40401B

10.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40401B	#FFFFFF	#000000	##FFFFFF
##40401B	1.00	10.68	1.97	10.68
#FFFFFF	10.68	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#453D18

Deuteranopia (green-blind)

#463F1D

Tritanopia (blue-blind)

#443C38

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #40401b;
/* rgb */ color: rgb(64, 64, 27);
/* oklch */ color: oklch(36.2% 0.056 108.9);

Tailwind

colors: {
  custom: {
    50: '#767458',
    500: '#40401b',
    950: '#000000',
  },
}

SCSS

$custom: #40401b;
$custom-light: #767458;
$custom-dark: #000000;

JSON

{
  "hex": "#40401b",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 60,
    "s": 40.659,
    "l": 17.843
  },
  "oklch": {
    "l": 0.36219,
    "c": 0.05567,
    "h": 108.9
  },
  "luminance": 0.04836
}

Semantic roles & 50–950 ramp

primary

#40401B

secondary

#414175

accent

#57D157

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080803

muted

#7B7B78

Preview Lab

Preview with #40401B

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

Preview Lab → · Contrast checker → · Palette generator →