#40451F#40451F

#40451F is a dark, muted yellow. Relative luminance 0.054; OKLCH L 37.6% C 0.058 H 115.4°. Best body text is #FFFFFF at 10.05:1 contrast (WCAG AA passes).

Color values

HEX	#40451F
RGB	rgb(64, 69, 31)
HSL	hsl(68, 38%, 20%)
HSV	hsv(68, 55%, 27%)
CMYK	cmyk(7.2%, 0%, 55.1%, 72.9%)
CIE-LAB	lab(27.97, -8.77, 22.08)
CIE-LCH	lch(27.97, 23.76, 111.66°)
OKLab	oklab(37.6% -0.0249 0.0525)
OKLCH	oklch(37.6% 0.058 115.4)
XYZ	xyz(4.4899, 5.4452, 2.1106)
Luminance	0.0544 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40451F #241F45

analogous

#45371F #40451F #2D451F

triadic

#40451F #1F4045 #451F40

tetradic

#40451F #1F4537 #241F45 #451F2D

square

#40451F #1F4537 #241F45 #451F2D

split-complementary

#40451F #1F2D45 #371F45

monochromatic

#141509 #191B0C #40451F #676F32 #8E9945

Accessibility & contrast

On white

10.05

#40451F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#40451F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40451F

10.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40451F	#FFFFFF	#000000	##FFFFFF
##40451F	1.00	10.05	2.09	10.05
#FFFFFF	10.05	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A421C

Deuteranopia (green-blind)

#494221

Tritanopia (blue-blind)

#44413C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40451f;
/* rgb */ color: rgb(64, 69, 31);
/* oklch */ color: oklch(37.6% 0.058 115.4);

Tailwind

colors: {
  custom: {
    50: '#76785c',
    500: '#40451f',
    950: '#000000',
  },
}

SCSS

$custom: #40451f;
$custom-light: #76785c;
$custom-dark: #000000;

JSON

{
  "hex": "#40451f",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 31
  },
  "hsl": {
    "h": 67.895,
    "s": 38,
    "l": 19.608
  },
  "oklch": {
    "l": 0.37598,
    "c": 0.05809,
    "h": 115.4
  },
  "luminance": 0.05445
}

Semantic roles & 50–950 ramp

primary

#40451F

secondary

#4D4679

accent

#5ACE69

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080904

muted

#7B7B79

Preview Lab

Preview with #40451F

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

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