#40340B#40340B

#40340B is a dark, muted yellow. Relative luminance 0.036; OKLCH L 32.9% C 0.059 H 92.1°. Best body text is #FFFFFF at 12.25:1 contrast (WCAG AA passes).

Color values

HEX	#40340B
RGB	rgb(64, 52, 11)
HSL	hsl(46, 71%, 15%)
HSV	hsv(46, 83%, 25%)
CMYK	cmyk(0%, 18.8%, 82.8%, 74.9%)
CIE-LAB	lab(22.20, 0.15, 26.45)
CIE-LCH	lch(22.20, 26.45, 89.67°)
OKLab	oklab(32.94% -0.0022 0.0588)
OKLCH	oklch(32.94% 0.059 92.1)
XYZ	xyz(3.4029, 3.5703, 0.8264)
Luminance	0.0357 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40340B #0B1740

analogous

#401A0B #40340B #32400B

triadic

#40340B #0B4034 #340B40

tetradic

#40340B #0B401A #0B1740 #400B32

square

#40340B #0B401A #0B1740 #400B32

split-complementary

#40340B #0B3240 #1A0B40

monochromatic

#1A1504 #1A1504 #40340B #745E14 #A8891D

Accessibility & contrast

On white

12.25

#40340B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.71

#40340B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40340B

12.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40340B	#FFFFFF	#000000	##FFFFFF
##40340B	1.00	12.25	1.71	12.25
#FFFFFF	12.25	1.00	21.00	1.00
#000000	1.71	21.00	1.00	21.00
##FFFFFF	12.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B3305

Deuteranopia (green-blind)

#3E370D

Tritanopia (blue-blind)

#462F2C

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #40340b;
/* rgb */ color: rgb(64, 52, 11);
/* oklch */ color: oklch(32.9% 0.059 92.1);

Tailwind

colors: {
  custom: {
    50: '#776b4d',
    500: '#40340b',
    950: '#000000',
  },
}

SCSS

$custom: #40340b;
$custom-light: #776b4d;
$custom-dark: #000000;

JSON

{
  "hex": "#40340b",
  "rgb": {
    "r": 64,
    "g": 52,
    "b": 11
  },
  "hsl": {
    "h": 46.415,
    "s": 70.667,
    "l": 14.706
  },
  "oklch": {
    "l": 0.32938,
    "c": 0.05887,
    "h": 92.1
  },
  "luminance": 0.0357
}

Semantic roles & 50–950 ramp

primary

#40340B

secondary

#2A3D7D

accent

#63ED3A

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090601

muted

#7B7A77

Preview Lab

Preview with #40340B

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

Preview Lab → · Contrast checker → · Palette generator →