#1F2901#1F2901

#1F2901 is a dark, moderate yellow-green. Relative luminance 0.019; OKLCH L 26.2% C 0.063 H 122.8°. Best body text is #FFFFFF at 15.26:1 contrast (WCAG AA passes).

Color values

HEX	#1F2901
RGB	rgb(31, 41, 1)
HSL	hsl(75, 95%, 8%)
HSV	hsv(75, 98%, 16%)
CMYK	cmyk(24.4%, 0%, 97.6%, 83.9%)
CIE-LAB	lab(14.84, -11.45, 21.02)
CIE-LCH	lch(14.84, 23.93, 118.57°)
OKLab	oklab(26.2% -0.034 0.0527)
OKLCH	oklch(26.2% 0.063 122.8)
XYZ	xyz(1.3635, 1.8794, 0.3196)
Luminance	0.0188 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#1F2901 #0B0129

analogous

#291F01 #1F2901 #0B2901

triadic

#1F2901 #011F29 #29011F

tetradic

#1F2901 #01291F #0B0129 #29010B

square

#1F2901 #01291F #0B0129 #29010B

split-complementary

#1F2901 #010B29 #1F0129

monochromatic

#171E01 #171E01 #1F2901 #4C6502 #79A004

Accessibility & contrast

On white

15.26

#1F2901 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#1F2901 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #1F2901

15.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##1F2901	#FFFFFF	#000000	##FFFFFF
##1F2901	1.00	15.26	1.38	15.26
#FFFFFF	15.26	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2600

Deuteranopia (green-blind)

#2B2504

Tritanopia (blue-blind)

#212621

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #1f2901;
/* rgb */ color: rgb(31, 41, 1);
/* oklch */ color: oklch(26.2% 0.063 122.8);

Tailwind

colors: {
  custom: {
    50: '#5b6247',
    500: '#1f2901',
    950: '#000000',
  },
}

SCSS

$custom: #1f2901;
$custom-light: #5b6247;
$custom-dark: #000000;

JSON

{
  "hex": "#1f2901",
  "rgb": {
    "r": 31,
    "g": 41,
    "b": 1
  },
  "hsl": {
    "h": 75,
    "s": 95.238,
    "l": 8.235
  },
  "oklch": {
    "l": 0.262,
    "c": 0.06266,
    "h": 122.8
  },
  "luminance": 0.01879
}

Semantic roles & 50–950 ramp

primary

#1F2901

secondary

#2D166F

accent

#29FF5E

background

#F5F5F4

surface

#E9EAE6

border

#C5C6C2

text

#040500

muted

#797977

Preview Lab

Preview with #1F2901

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

Preview Lab → · Contrast checker → · Palette generator →