#3F370C#3F370C

#3F370C is a dark, moderate yellow. Relative luminance 0.038; OKLCH L 33.6% C 0.060 H 98.4°. Best body text is #FFFFFF at 11.91:1 contrast (WCAG AA passes).

Color values

HEX	#3F370C
RGB	rgb(63, 55, 12)
HSL	hsl(51, 68%, 15%)
HSV	hsv(51, 81%, 25%)
CMYK	cmyk(0%, 12.7%, 81%, 75.3%)
CIE-LAB	lab(23.05, -2.26, 26.86)
CIE-LCH	lch(23.05, 26.96, 94.81°)
OKLab	oklab(33.59% -0.0089 0.0598)
OKLCH	oklch(33.59% 0.06 98.4)
XYZ	xyz(3.4826, 3.8159, 0.9008)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F370C #0C143F

analogous

#3F1E0C #3F370C #2E3F0C

triadic

#3F370C #0C3F37 #370C3F

tetradic

#3F370C #0C3F1E #0C143F #3F0C2E

square

#3F370C #0C3F1E #0C143F #3F0C2E

split-complementary

#3F370C #0C2E3F #1E0C3F

monochromatic

#1A1605 #1A1605 #3F370C #726416 #A69120

Accessibility & contrast

On white

11.91

#3F370C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#3F370C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F370C

11.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F370C	#FFFFFF	#000000	##FFFFFF
##3F370C	1.00	11.91	1.76	11.91
#FFFFFF	11.91	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D3506

Deuteranopia (green-blind)

#3F380F

Tritanopia (blue-blind)

#45322E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #3f370c;
/* rgb */ color: rgb(63, 55, 12);
/* oklch */ color: oklch(33.6% 0.060 98.4);

Tailwind

colors: {
  custom: {
    50: '#766d4e',
    500: '#3f370c',
    950: '#000000',
  },
}

SCSS

$custom: #3f370c;
$custom-light: #766d4e;
$custom-dark: #000000;

JSON

{
  "hex": "#3f370c",
  "rgb": {
    "r": 63,
    "g": 55,
    "b": 12
  },
  "hsl": {
    "h": 50.588,
    "s": 68,
    "l": 14.706
  },
  "oklch": {
    "l": 0.33591,
    "c": 0.06045,
    "h": 98.4
  },
  "luminance": 0.03816
}

Semantic roles & 50–950 ramp

primary

#3F370C

secondary

#2C387B

accent

#58EB3D

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090701

muted

#7B7A77

Preview Lab

Preview with #3F370C

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

Preview Lab → · Contrast checker → · Palette generator →