#3F370F#3F370F

#3F370F is a dark, muted yellow. Relative luminance 0.038; OKLCH L 33.6% C 0.058 H 97.8°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F370F
RGB	rgb(63, 55, 15)
HSL	hsl(50, 62%, 15%)
HSV	hsv(50, 76%, 25%)
CMYK	cmyk(0%, 12.7%, 76.2%, 75.3%)
CIE-LAB	lab(23.08, -2.06, 25.42)
CIE-LCH	lch(23.08, 25.50, 94.64°)
OKLab	oklab(33.62% -0.0079 0.0573)
OKLCH	oklch(33.62% 0.058 97.8)
XYZ	xyz(3.5025, 3.8238, 1.0054)
Luminance	0.0382 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F370F #0F173F

analogous

#3F1F0F #3F370F #2F3F0F

triadic

#3F370F #0F3F37 #370F3F

tetradic

#3F370F #0F3F1F #0F173F #3F0F2F

square

#3F370F #0F3F1F #0F173F #3F0F2F

split-complementary

#3F370F #0F2F3F #1F0F3F

monochromatic

#191606 #191606 #3F370F #70621B #A28D27

Accessibility & contrast

On white

11.90

#3F370F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#3F370F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F370F

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F370F	#FFFFFF	#000000	##FFFFFF
##3F370F	1.00	11.90	1.76	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D350A

Deuteranopia (green-blind)

#3F3811

Tritanopia (blue-blind)

#44322F

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #3f370f;
/* rgb */ color: rgb(63, 55, 15);
/* oklch */ color: oklch(33.6% 0.058 97.8);

Tailwind

colors: {
  custom: {
    50: '#766d50',
    500: '#3f370f',
    950: '#000000',
  },
}

SCSS

$custom: #3f370f;
$custom-light: #766d50;
$custom-dark: #000000;

JSON

{
  "hex": "#3f370f",
  "rgb": {
    "r": 63,
    "g": 55,
    "b": 15
  },
  "hsl": {
    "h": 50,
    "s": 61.538,
    "l": 15.294
  },
  "oklch": {
    "l": 0.33621,
    "c": 0.05788,
    "h": 97.8
  },
  "luminance": 0.03824
}

Semantic roles & 50–950 ramp

primary

#3F370F

secondary

#303D79

accent

#5EE543

background

#F7F6F4

surface

#EDEBE7

border

#C8C6C3

text

#090702

muted

#7B7A78

Preview Lab

Preview with #3F370F

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

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