#1B3104#1B3104

#1B3104 is a dark, moderate yellow-green. Relative luminance 0.024; OKLCH L 28.4% C 0.074 H 132.4°. Best body text is #FFFFFF at 14.12:1 contrast (WCAG AA passes).

Color values

HEX	#1B3104
RGB	rgb(27, 49, 4)
HSL	hsl(89, 85%, 10%)
HSV	hsv(89, 92%, 19%)
CMYK	cmyk(44.9%, 0%, 91.8%, 80.8%)
CIE-LAB	lab(17.64, -17.59, 23.22)
CIE-LCH	lch(17.64, 29.13, 127.15°)
OKLab	oklab(28.41% -0.0498 0.0545)
OKLCH	oklch(28.41% 0.074 132.4)
XYZ	xyz(1.5722, 2.4383, 0.5026)
Luminance	0.0244 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B3104 #1A0431

analogous

#313004 #1B3104 #053104

triadic

#1B3104 #041B31 #31041B

tetradic

#1B3104 #043130 #1A0431 #310405

square

#1B3104 #043130 #1A0431 #310405

split-complementary

#1B3104 #040531 #300431

monochromatic

#101C02 #101C02 #1B3104 #3A6A09 #59A20D

Accessibility & contrast

On white

14.12

#1B3104 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#1B3104 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B3104

14.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B3104	#FFFFFF	#000000	##FFFFFF
##1B3104	1.00	14.12	1.49	14.12
#FFFFFF	14.12	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#342C00

Deuteranopia (green-blind)

#312B08

Tritanopia (blue-blind)

#1B2F28

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #1b3104;
/* rgb */ color: rgb(27, 49, 4);
/* oklch */ color: oklch(28.4% 0.074 132.4);

Tailwind

colors: {
  custom: {
    50: '#596949',
    500: '#1b3104',
    950: '#000000',
  },
}

SCSS

$custom: #1b3104;
$custom-light: #596949;
$custom-dark: #000000;

JSON

{
  "hex": "#1b3104",
  "rgb": {
    "r": 27,
    "g": 49,
    "b": 4
  },
  "hsl": {
    "h": 89.333,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.28409,
    "c": 0.07378,
    "h": 132.4
  },
  "luminance": 0.02438
}

Semantic roles & 50–950 ramp

primary

#1B3104

secondary

#471D73

accent

#2DFB92

background

#F5F6F4

surface

#E9EBE7

border

#C5C6C3

text

#040601

muted

#797A77

Preview Lab

Preview with #1B3104

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

Preview Lab → · Contrast checker → · Palette generator →