#1F2803#1F2803

#1F2803 is a dark, muted yellow-green. Relative luminance 0.018; OKLCH L 25.9% C 0.059 H 122.3°. Best body text is #FFFFFF at 15.41:1 contrast (WCAG AA passes).

Color values

HEX	#1F2803
RGB	rgb(31, 40, 3)
HSL	hsl(75, 86%, 8%)
HSV	hsv(75, 93%, 16%)
CMYK	cmyk(22.5%, 0%, 92.5%, 84.3%)
CIE-LAB	lab(14.49, -10.61, 19.75)
CIE-LCH	lch(14.49, 22.42, 118.26°)
OKLab	oklab(25.92% -0.0313 0.0496)
OKLCH	oklch(25.92% 0.059 122.3)
XYZ	xyz(1.3403, 1.8155, 0.3659)
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

#1F2803 #0C0328

analogous

#281E03 #1F2803 #0C2803

triadic

#1F2803 #031F28 #28031F

tetradic

#1F2803 #03281E #0C0328 #28030C

square

#1F2803 #03281E #0C0328 #28030C

split-complementary

#1F2803 #030C28 #1E0328

monochromatic

#161C02 #161C02 #1F2803 #4B6107 #779A0C

Accessibility & contrast

On white

15.41

#1F2803 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#1F2803 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2803

15.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2803	#FFFFFF	#000000	##FFFFFF
##1F2803	1.00	15.41	1.36	15.41
#FFFFFF	15.41	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2500

Deuteranopia (green-blind)

#2A2505

Tritanopia (blue-blind)

#212521

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f2803;
/* rgb */ color: rgb(31, 40, 3);
/* oklch */ color: oklch(25.9% 0.059 122.3);

Tailwind

colors: {
  custom: {
    50: '#5b6148',
    500: '#1f2803',
    950: '#000000',
  },
}

SCSS

$custom: #1f2803;
$custom-light: #5b6148;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2803",
  "rgb": {
    "r": 31,
    "g": 40,
    "b": 3
  },
  "hsl": {
    "h": 74.595,
    "s": 86.047,
    "l": 8.431
  },
  "oklch": {
    "l": 0.25921,
    "c": 0.05862,
    "h": 122.3
  },
  "luminance": 0.01815
}

Semantic roles & 50–950 ramp

primary

#1F2803

secondary

#2F1B6C

accent

#2CFC5E

background

#F5F5F4

surface

#E9EAE6

border

#C5C6C2

text

#040500

muted

#797977

Preview Lab

Preview with #1F2803

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

Preview Lab → · Contrast checker → · Palette generator →