#31301B#31301B

#31301B is a dark, muted yellow. Relative luminance 0.028; OKLCH L 30.4% C 0.035 H 105.9°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#31301B
RGB	rgb(49, 48, 27)
HSL	hsl(57, 29%, 15%)
HSV	hsv(57, 45%, 19%)
CMYK	cmyk(0%, 2%, 44.9%, 80.8%)
CIE-LAB	lab(19.42, -3.54, 13.62)
CIE-LCH	lch(19.42, 14.07, 104.56°)
OKLab	oklab(30.41% -0.0095 0.0334)
OKLCH	oklch(30.41% 0.035 105.9)
XYZ	xyz(2.5214, 2.8461, 1.4532)
Luminance	0.0285 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#31301B #1B1C31

analogous

#31251B #31301B #27311B

triadic

#31301B #1B3130 #301B31

tetradic

#31301B #1B3125 #1B1C31 #311B27

square

#31301B #1B3125 #1B1C31 #311B27

split-complementary

#31301B #1B2731 #251B31

monochromatic

#14130B #14130B #31301B #585731 #807D46

Accessibility & contrast

On white

13.38

#31301B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#31301B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #31301B

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##31301B	#FFFFFF	#000000	##FFFFFF
##31301B	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#332E19

Deuteranopia (green-blind)

#34301C

Tritanopia (blue-blind)

#342D2B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #31301b;
/* rgb */ color: rgb(49, 48, 27);
/* oklch */ color: oklch(30.4% 0.035 105.9);

Tailwind

colors: {
  custom: {
    50: '#696857',
    500: '#31301b',
    950: '#000000',
  },
}

SCSS

$custom: #31301b;
$custom-light: #696857;
$custom-dark: #000000;

JSON

{
  "hex": "#31301b",
  "rgb": {
    "r": 49,
    "g": 48,
    "b": 27
  },
  "hsl": {
    "h": 57.273,
    "s": 28.947,
    "l": 14.902
  },
  "oklch": {
    "l": 0.30408,
    "c": 0.03474,
    "h": 105.9
  },
  "luminance": 0.02846
}

Semantic roles & 50–950 ramp

primary

#31301B

secondary

#434465

accent

#67C563

background

#F6F6F5

surface

#EBEBE9

border

#C6C6C5

text

#060603

muted

#7A7A78

Preview Lab

Preview with #31301B

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

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