#3F451D#3F451D

#3F451D is a dark, moderate yellow. Relative luminance 0.054; OKLCH L 37.5% C 0.061 H 116.5°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#3F451D
RGB	rgb(63, 69, 29)
HSL	hsl(69, 41%, 19%)
HSV	hsv(69, 58%, 27%)
CMYK	cmyk(8.7%, 0%, 58%, 72.9%)
CIE-LAB	lab(27.85, -9.48, 23.07)
CIE-LCH	lch(27.85, 24.94, 112.33°)
OKLab	oklab(37.47% -0.0271 0.0544)
OKLCH	oklch(37.47% 0.061 116.5)
XYZ	xyz(4.3999, 5.4018, 1.9730)
Luminance	0.0540 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F451D #231D45

analogous

#45371D #3F451D #2B451D

triadic

#3F451D #1D3F45 #451D3F

tetradic

#3F451D #1D4537 #231D45 #451D2B

square

#3F451D #1D4537 #231D45 #451D2B

split-complementary

#3F451D #1D2B45 #371D45

monochromatic

#141609 #181A0B #3F451D #66702F #8E9B41

Accessibility & contrast

On white

10.09

#3F451D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3F451D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F451D

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F451D	#FFFFFF	#000000	##FFFFFF
##3F451D	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4219

Deuteranopia (green-blind)

#49421F

Tritanopia (blue-blind)

#43413C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3f451d;
/* rgb */ color: rgb(63, 69, 29);
/* oklch */ color: oklch(37.5% 0.061 116.5);

Tailwind

colors: {
  custom: {
    50: '#75785a',
    500: '#3f451d',
    950: '#000000',
  },
}

SCSS

$custom: #3f451d;
$custom-light: #75785a;
$custom-dark: #000000;

JSON

{
  "hex": "#3f451d",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 29
  },
  "hsl": {
    "h": 69,
    "s": 40.816,
    "l": 19.216
  },
  "oklch": {
    "l": 0.37473,
    "c": 0.06081,
    "h": 116.5
  },
  "luminance": 0.05402
}

Semantic roles & 50–950 ramp

primary

#3F451D

secondary

#4C447A

accent

#57D169

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080904

muted

#7B7B79

Preview Lab

Preview with #3F451D

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

Preview Lab → · Contrast checker → · Palette generator →