#181F01#181F01

#181F01 is a very dark, muted yellow-green. Relative luminance 0.012; OKLCH L 22.4% C 0.052 H 121.2°. Best body text is #FFFFFF at 17.00:1 contrast (WCAG AA passes).

Color values

HEX	#181F01
RGB	rgb(24, 31, 1)
HSL	hsl(74, 94%, 6%)
HSV	hsv(74, 97%, 12%)
CMYK	cmyk(22.6%, 0%, 96.8%, 87.8%)
CIE-LAB	lab(10.38, -9.04, 14.90)
CIE-LCH	lch(10.38, 17.43, 121.24°)
OKLab	oklab(22.44% -0.027 0.0445)
OKLCH	oklch(22.44% 0.052 121.2)
XYZ	xyz(0.8722, 1.1764, 0.2098)
Luminance	0.0118 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Hunter Green (survey)

#0B4008

ΔE00 13.96

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#181F01 #08011F

analogous

#1F1701 #181F01 #091F01

triadic

#181F01 #01181F #1F0118

tetradic

#181F01 #011F17 #08011F #1F0109

square

#181F01 #011F17 #08011F #1F0109

split-complementary

#181F01 #01091F #17011F

monochromatic

#171E01 #171E01 #181F01 #465A03 #749605

Accessibility & contrast

On white

17.00

#181F01 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#181F01 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #181F01

17.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##181F01	#FFFFFF	#000000	##FFFFFF
##181F01	1.00	17.00	1.24	17.00
#FFFFFF	17.00	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	17.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#221C00

Deuteranopia (green-blind)

#211C03

Tritanopia (blue-blind)

#1A1D19

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #181f01;
/* rgb */ color: rgb(24, 31, 1);
/* oklch */ color: oklch(22.4% 0.052 121.2);

Tailwind

colors: {
  custom: {
    50: '#545a47',
    500: '#181f01',
    950: '#000000',
  },
}

SCSS

$custom: #181f01;
$custom-light: #545a47;
$custom-dark: #000000;

JSON

{
  "hex": "#181f01",
  "rgb": {
    "r": 24,
    "g": 31,
    "b": 1
  },
  "hsl": {
    "h": 74,
    "s": 93.75,
    "l": 6.275
  },
  "oklch": {
    "l": 0.22436,
    "c": 0.05199,
    "h": 121.2
  },
  "luminance": 0.01176
}

Semantic roles & 50–950 ramp

primary

#181F01

secondary

#281567

accent

#29FF5B

background

#F4F5F3

surface

#E7E9E5

border

#C3C5C1

text

#030300

muted

#787877

Preview Lab

Preview with #181F01

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

Preview Lab → · Contrast checker → · Palette generator →