#1B290B#1B290B

#1B290B is a dark, muted yellow-green. Relative luminance 0.018; OKLCH L 26.0% C 0.053 H 130.4°. Best body text is #FFFFFF at 15.34:1 contrast (WCAG AA passes).

Color values

HEX	#1B290B
RGB	rgb(27, 41, 11)
HSL	hsl(88, 58%, 10%)
HSV	hsv(88, 73%, 16%)
CMYK	cmyk(34.1%, 0%, 73.2%, 83.9%)
CIE-LAB	lab(14.64, -12.34, 16.61)
CIE-LCH	lch(14.64, 20.69, 126.60°)
OKLab	oklab(25.99% -0.0346 0.0407)
OKLCH	oklch(25.99% 0.053 130.4)
XYZ	xyz(1.3053, 1.8430, 0.6035)
Luminance	0.0184 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B290B #190B29

analogous

#29280B #1B290B #0C290B

triadic

#1B290B #0B1B29 #290B1B

tetradic

#1B290B #0B2928 #190B29 #290B0C

square

#1B290B #0B2928 #190B29 #290B0C

split-complementary

#1B290B #0B0C29 #280B29

monochromatic

#101806 #101806 #1B290B #3B5918 #5B8A25

Accessibility & contrast

On white

15.34

#1B290B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#1B290B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B290B

15.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B290B	#FFFFFF	#000000	##FFFFFF
##1B290B	1.00	15.34	1.37	15.34
#FFFFFF	15.34	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2608

Deuteranopia (green-blind)

#29250D

Tritanopia (blue-blind)

#1C2723

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1b290b;
/* rgb */ color: rgb(27, 41, 11);
/* oklch */ color: oklch(26.0% 0.053 130.4);

Tailwind

colors: {
  custom: {
    50: '#58624c',
    500: '#1b290b',
    950: '#000000',
  },
}

SCSS

$custom: #1b290b;
$custom-light: #58624c;
$custom-dark: #000000;

JSON

{
  "hex": "#1b290b",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 11
  },
  "hsl": {
    "h": 88,
    "s": 57.692,
    "l": 10.196
  },
  "oklch": {
    "l": 0.25993,
    "c": 0.0534,
    "h": 130.4
  },
  "luminance": 0.01843
}

Semantic roles & 50–950 ramp

primary

#1B290B

secondary

#462B65

accent

#47E18F

background

#F5F5F4

surface

#E9EAE7

border

#C5C6C3

text

#030501

muted

#787977

Preview Lab

Preview with #1B290B

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

Preview Lab → · Contrast checker → · Palette generator →