#1F2800#1F2800

#1F2800 is a dark, moderate yellow-green. Relative luminance 0.018; OKLCH L 25.9% C 0.063 H 121.7°. Best body text is #FFFFFF at 15.42:1 contrast (WCAG AA passes).

Color values

HEX	#1F2800
RGB	rgb(31, 40, 0)
HSL	hsl(74, 100%, 8%)
HSV	hsv(74, 100%, 16%)
CMYK	cmyk(22.5%, 0%, 100%, 84.3%)
CIE-LAB	lab(14.45, -10.95, 20.92)
CIE-LCH	lch(14.45, 23.61, 117.63°)
OKLab	oklab(25.88% -0.0328 0.0532)
OKLCH	oklch(25.88% 0.063 121.7)
XYZ	xyz(1.3239, 1.8089, 0.2794)
Luminance	0.0181 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2800 #090028

analogous

#281D00 #1F2800 #0B2800

triadic

#1F2800 #001F28 #28001F

tetradic

#1F2800 #00281D #090028 #28000B

square

#1F2800 #00281D #090028 #28000B

split-complementary

#1F2800 #000B28 #1D0028

monochromatic

#181F00 #181F00 #1F2800 #4E6500 #7EA200

Accessibility & contrast

On white

15.42

#1F2800 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1F2800 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2800

15.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2800	#FFFFFF	#000000	##FFFFFF
##1F2800	1.00	15.42	1.36	15.42
#FFFFFF	15.42	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2500

Deuteranopia (green-blind)

#2A2502

Tritanopia (blue-blind)

#212520

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f2800;
/* rgb */ color: rgb(31, 40, 0);
/* oklch */ color: oklch(25.9% 0.063 121.7);

Tailwind

colors: {
  custom: {
    50: '#5b6146',
    500: '#1f2800',
    950: '#000000',
  },
}

SCSS

$custom: #1f2800;
$custom-light: #5b6146;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2800",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 0
  },
  "hsl": {
    "h": 73.5,
    "s": 100,
    "l": 7.843
  },
  "oklch": {
    "l": 0.2588,
    "c": 0.06255,
    "h": 121.7
  },
  "luminance": 0.01809
}

Semantic roles & 50–950 ramp

primary

#1F2800

secondary

#291470

accent

#29FF59

background

#F5F5F3

surface

#E9EAE5

border

#C5C6C1

text

#040500

muted

#797977

Preview Lab

Preview with #1F2800

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

Preview Lab → · Contrast checker → · Palette generator →