#40381C#40381C

#40381C is a dark, muted yellow. Relative luminance 0.040; OKLCH L 34.2% C 0.045 H 93.9°. Best body text is #FFFFFF at 11.66:1 contrast (WCAG AA passes).

Color values

HEX	#40381C
RGB	rgb(64, 56, 28)
HSL	hsl(47, 39%, 18%)
HSV	hsv(47, 56%, 25%)
CMYK	cmyk(0%, 12.5%, 56.2%, 74.9%)
CIE-LAB	lab(23.68, -0.99, 18.68)
CIE-LCH	lch(23.68, 18.71, 93.04°)
OKLab	oklab(34.17% -0.003 0.0447)
OKLCH	oklch(34.17% 0.045 93.9)
XYZ	xyz(3.7382, 4.0023, 1.6740)
Luminance	0.0400 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40381C #1C2440

analogous

#40261C #40381C #36401C

triadic

#40381C #1C4038 #381C40

tetradic

#40381C #1C4026 #1C2440 #401C36

square

#40381C #1C4026 #1C2440 #401C36

split-complementary

#40381C #1C3640 #261C40

monochromatic

#151309 #151309 #40381C #6B5D2F #958341

Accessibility & contrast

On white

11.66

#40381C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#40381C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40381C

11.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40381C	#FFFFFF	#000000	##FFFFFF
##40381C	1.00	11.66	1.80	11.66
#FFFFFF	11.66	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D371A

Deuteranopia (green-blind)

#3F391D

Tritanopia (blue-blind)

#453431

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #40381c;
/* rgb */ color: rgb(64, 56, 28);
/* oklch */ color: oklch(34.2% 0.045 93.9);

Tailwind

colors: {
  custom: {
    50: '#766e59',
    500: '#40381c',
    950: '#000000',
  },
}

SCSS

$custom: #40381c;
$custom-light: #766e59;
$custom-dark: #000000;

JSON

{
  "hex": "#40381c",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 28
  },
  "hsl": {
    "h": 46.667,
    "s": 39.13,
    "l": 18.039
  },
  "oklch": {
    "l": 0.34174,
    "c": 0.04477,
    "h": 93.9
  },
  "luminance": 0.04002
}

Semantic roles & 50–950 ramp

primary

#40381C

secondary

#434E75

accent

#73CF59

background

#F7F6F5

surface

#EDEBE9

border

#C8C6C5

text

#080703

muted

#7B7A78

Preview Lab

Preview with #40381C

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

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