#03180B#03180B

#03180B is a very dark, muted green. Relative luminance 0.007; OKLCH L 18.6% C 0.039 H 155.0°. Best body text is #FFFFFF at 18.43:1 contrast (WCAG AA passes).

Color values

HEX	#03180B
RGB	rgb(3, 24, 11)
HSL	hsl(143, 78%, 5%)
HSV	hsv(143, 88%, 9%)
CMYK	cmyk(87.5%, 0%, 54.2%, 90.6%)
CIE-LAB	lab(6.29, -9.73, 4.72)
CIE-LCH	lch(6.29, 10.82, 154.14°)
OKLab	oklab(18.65% -0.0356 0.0166)
OKLCH	oklch(18.65% 0.039 155)
XYZ	xyz(0.4246, 0.6967, 0.4287)
Luminance	0.0070 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#03180B #180310

analogous

#051803 #03180B #031815

triadic

#03180B #0B0318 #180B03

tetradic

#03180B #030518 #180310 #181503

square

#03180B #030518 #180310 #181503

split-complementary

#03180B #150318 #180305

monochromatic

#031B0C #031B0C #031B0C #0A4E24 #11853D

Accessibility & contrast

On white

18.43

#03180B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.14

#03180B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #03180B

18.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##03180B	#FFFFFF	#000000	##FFFFFF
##03180B	1.00	18.43	1.14	18.43
#FFFFFF	18.43	1.00	21.00	1.00
#000000	1.14	21.00	1.00	21.00
##FFFFFF	18.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#18150A

Deuteranopia (green-blind)

#15130C

Tritanopia (blue-blind)

#001815

Achromatopsia (no color)

#141414

Design tokens & code

CSS

--color: #03180b;
/* rgb */ color: rgb(3, 24, 11);
/* oklch */ color: oklch(18.6% 0.039 155.0);

Tailwind

colors: {
  custom: {
    50: '#47544b',
    500: '#03180b',
    950: '#000000',
  },
}

SCSS

$custom: #03180b;
$custom-light: #47544b;
$custom-dark: #000000;

JSON

{
  "hex": "#03180b",
  "rgb": {
    "r": 3,
    "g": 24,
    "b": 11
  },
  "hsl": {
    "h": 142.857,
    "s": 77.778,
    "l": 5.294
  },
  "oklch": {
    "l": 0.18647,
    "c": 0.03928,
    "h": 155
  },
  "luminance": 0.00697
}

Semantic roles & 50–950 ramp

primary

#03180B

secondary

#5C1B43

accent

#34ABF4

background

#F4F4F4

surface

#E6E7E7

border

#C2C3C3

text

#000201

muted

#777877

Preview Lab

Preview with #03180B

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

Preview Lab → · Contrast checker → · Palette generator →