#2B310B#2B310B

#2B310B is a dark, muted yellow. Relative luminance 0.027; OKLCH L 29.8% C 0.058 H 117.7°. Best body text is #FFFFFF at 13.58:1 contrast (WCAG AA passes).

Color values

HEX	#2B310B
RGB	rgb(43, 49, 11)
HSL	hsl(69, 63%, 12%)
HSV	hsv(69, 78%, 19%)
CMYK	cmyk(12.2%, 0%, 77.6%, 80.8%)
CIE-LAB	lab(18.95, -9.12, 22.21)
CIE-LCH	lch(18.95, 24.01, 112.32°)
OKLab	oklab(29.81% -0.0269 0.0511)
OKLCH	oklch(29.81% 0.058 117.7)
XYZ	xyz(2.1550, 2.7344, 0.7308)
Luminance	0.0273 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B310B #110B31

analogous

#31240B #2B310B #18310B

triadic

#2B310B #0B2B31 #310B2B

tetradic

#2B310B #0B3124 #110B31 #310B18

square

#2B310B #0B3124 #110B31 #310B18

split-complementary

#2B310B #0B1831 #240B31

monochromatic

#161906 #161906 #2B310B #576316 #839521

Accessibility & contrast

On white

13.58

#2B310B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#2B310B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B310B

13.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B310B	#FFFFFF	#000000	##FFFFFF
##2B310B	1.00	13.58	1.55	13.58
#FFFFFF	13.58	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#352E06

Deuteranopia (green-blind)

#342E0E

Tritanopia (blue-blind)

#2E2E29

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #2b310b;
/* rgb */ color: rgb(43, 49, 11);
/* oklch */ color: oklch(29.8% 0.058 117.7);

Tailwind

colors: {
  custom: {
    50: '#66694c',
    500: '#2b310b',
    950: '#000000',
  },
}

SCSS

$custom: #2b310b;
$custom-light: #66694c;
$custom-dark: #000000;

JSON

{
  "hex": "#2b310b",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 11
  },
  "hsl": {
    "h": 69.474,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.29813,
    "c": 0.05777,
    "h": 117.7
  },
  "luminance": 0.02734
}

Semantic roles & 50–950 ramp

primary

#2B310B

secondary

#352A6E

accent

#41E65B

background

#F6F6F4

surface

#EBEBE7

border

#C6C6C3

text

#060601

muted

#7A7A77

Preview Lab

Preview with #2B310B

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

Preview Lab → · Contrast checker → · Palette generator →