#1B2900#1B2900

#1B2900 is a dark, moderate yellow-green. Relative luminance 0.018; OKLCH L 25.8% C 0.066 H 126.8°. Best body text is #FFFFFF at 15.40:1 contrast (WCAG AA passes).

Color values

HEX	#1B2900
RGB	rgb(27, 41, 0)
HSL	hsl(80, 100%, 8%)
HSV	hsv(80, 100%, 16%)
CMYK	cmyk(34.1%, 0%, 100%, 83.9%)
CIE-LAB	lab(14.51, -13.63, 20.93)
CIE-LCH	lch(14.51, 24.98, 123.08°)
OKLab	oklab(25.84% -0.0398 0.0532)
OKLCH	oklch(25.84% 0.066 126.8)
XYZ	xyz(1.2449, 1.8189, 0.2855)
Luminance	0.0182 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1B2900 #0E0029

analogous

#292200 #1B2900 #062900

triadic

#1B2900 #001B29 #29001B

tetradic

#1B2900 #002922 #0E0029 #290006

square

#1B2900 #002922 #0E0029 #290006

split-complementary

#1B2900 #000629 #220029

monochromatic

#141F00 #141F00 #1B2900 #436600 #6CA300

Accessibility & contrast

On white

15.40

#1B2900 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1B2900 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1B2900

15.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1B2900	#FFFFFF	#000000	##FFFFFF
##1B2900	1.00	15.40	1.36	15.40
#FFFFFF	15.40	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2500

Deuteranopia (green-blind)

#2A2403

Tritanopia (blue-blind)

#1D2621

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1b2900;
/* rgb */ color: rgb(27, 41, 0);
/* oklch */ color: oklch(25.8% 0.066 126.8);

Tailwind

colors: {
  custom: {
    50: '#586246',
    500: '#1b2900',
    950: '#000000',
  },
}

SCSS

$custom: #1b2900;
$custom-light: #586246;
$custom-dark: #000000;

JSON

{
  "hex": "#1b2900",
  "rgb": {
    "r": 27,
    "g": 41,
    "b": 0
  },
  "hsl": {
    "h": 80.488,
    "s": 100,
    "l": 8.039
  },
  "oklch": {
    "l": 0.25841,
    "c": 0.06646,
    "h": 126.8
  },
  "luminance": 0.01819
}

Semantic roles & 50–950 ramp

primary

#1B2900

secondary

#341471

accent

#29FF72

background

#F5F5F3

surface

#E9EAE5

border

#C5C6C1

text

#030500

muted

#787977

Preview Lab

Preview with #1B2900

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

Preview Lab → · Contrast checker → · Palette generator →