#40451D#40451D

#40451D is a dark, moderate yellow. Relative luminance 0.054; OKLCH L 37.6% C 0.060 H 115.3°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#40451D
RGB	rgb(64, 69, 29)
HSL	hsl(68, 41%, 19%)
HSV	hsv(68, 58%, 27%)
CMYK	cmyk(7.2%, 0%, 58%, 72.9%)
CIE-LAB	lab(27.94, -8.99, 23.20)
CIE-LCH	lch(27.94, 24.88, 111.19°)
OKLab	oklab(37.57% -0.0258 0.0547)
OKLCH	oklch(37.57% 0.06 115.3)
XYZ	xyz(4.4643, 5.4350, 1.9760)
Luminance	0.0544 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40451D #221D45

analogous

#45361D #40451D #2C451D

triadic

#40451D #1D4045 #451D40

tetradic

#40451D #1D4536 #221D45 #451D2C

square

#40451D #1D4536 #221D45 #451D2C

split-complementary

#40451D #1D2C45 #361D45

monochromatic

#141609 #181A0B #40451D #68702F #909B41

Accessibility & contrast

On white

10.06

#40451D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#40451D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40451D

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40451D	#FFFFFF	#000000	##FFFFFF
##40451D	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4219

Deuteranopia (green-blind)

#49421F

Tritanopia (blue-blind)

#44413C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40451d;
/* rgb */ color: rgb(64, 69, 29);
/* oklch */ color: oklch(37.6% 0.060 115.3);

Tailwind

colors: {
  custom: {
    50: '#76785a',
    500: '#40451d',
    950: '#000000',
  },
}

SCSS

$custom: #40451d;
$custom-light: #76785a;
$custom-dark: #000000;

JSON

{
  "hex": "#40451d",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 29
  },
  "hsl": {
    "h": 67.5,
    "s": 40.816,
    "l": 19.216
  },
  "oklch": {
    "l": 0.37567,
    "c": 0.06048,
    "h": 115.3
  },
  "luminance": 0.05435
}

Semantic roles & 50–950 ramp

primary

#40451D

secondary

#4B447A

accent

#57D166

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080904

muted

#7B7B79

Preview Lab

Preview with #40451D

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

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