#3F451C#3F451C

#3F451C is a dark, moderate yellow. Relative luminance 0.054; OKLCH L 37.5% C 0.062 H 116.4°. Best body text is #FFFFFF at 10.10:1 contrast (WCAG AA passes).

Color values

HEX	#3F451C
RGB	rgb(63, 69, 28)
HSL	hsl(69, 42%, 19%)
HSV	hsv(69, 59%, 27%)
CMYK	cmyk(8.7%, 0%, 59.4%, 72.9%)
CIE-LAB	lab(27.84, -9.59, 23.62)
CIE-LCH	lch(27.84, 25.50, 112.09°)
OKLab	oklab(37.46% -0.0275 0.0555)
OKLCH	oklch(37.46% 0.062 116.4)
XYZ	xyz(4.3877, 5.3969, 1.9089)
Luminance	0.0540 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F451C #221C45

analogous

#45371C #3F451C #2B451C

triadic

#3F451C #1C3F45 #451C3F

tetradic

#3F451C #1C4537 #221C45 #451C2B

square

#3F451C #1C4537 #221C45 #451C2B

split-complementary

#3F451C #1C2B45 #371C45

monochromatic

#141609 #17190A #3F451C #67712E #8E9C3F

Accessibility & contrast

On white

10.10

#3F451C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#3F451C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F451C

10.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F451C	#FFFFFF	#000000	##FFFFFF
##3F451C	1.00	10.10	2.08	10.10
#FFFFFF	10.10	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4118

Deuteranopia (green-blind)

#49421E

Tritanopia (blue-blind)

#43413C

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #3f451c;
/* rgb */ color: rgb(63, 69, 28);
/* oklch */ color: oklch(37.5% 0.062 116.4);

Tailwind

colors: {
  custom: {
    50: '#757859',
    500: '#3f451c',
    950: '#000000',
  },
}

SCSS

$custom: #3f451c;
$custom-light: #757859;
$custom-dark: #000000;

JSON

{
  "hex": "#3f451c",
  "rgb": {
    "r": 63,
    "g": 69,
    "b": 28
  },
  "hsl": {
    "h": 68.78,
    "s": 42.268,
    "l": 19.02
  },
  "oklch": {
    "l": 0.37458,
    "c": 0.06197,
    "h": 116.4
  },
  "luminance": 0.05397
}

Semantic roles & 50–950 ramp

primary

#3F451C

secondary

#4B427A

accent

#56D268

background

#F7F7F5

surface

#EDEDE9

border

#C8C8C5

text

#080903

muted

#7B7B78

Preview Lab

Preview with #3F451C

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

Preview Lab → · Contrast checker → · Palette generator →