#04210B#04210B

#04210B is a very dark, muted green. Relative luminance 0.011; OKLCH L 21.9% C 0.055 H 148.7°. Best body text is #FFFFFF at 17.11:1 contrast (WCAG AA passes).

Color values

HEX	#04210B
RGB	rgb(4, 33, 11)
HSL	hsl(134, 78%, 7%)
HSV	hsv(134, 88%, 13%)
CMYK	cmyk(87.9%, 0%, 66.7%, 87.1%)
CIE-LAB	lab(10.09, -16.68, 10.22)
CIE-LCH	lch(10.09, 19.57, 148.51°)
OKLab	oklab(21.91% -0.0467 0.0284)
OKLCH	oklch(21.91% 0.055 148.7)
XYZ	xyz(0.6543, 1.1376, 0.5016)
Luminance	0.0114 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Hunter Green (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04210B #21041A

analogous

#0C2104 #04210B #04211A

triadic

#04210B #0B0421 #210B04

tetradic

#04210B #040C21 #21041A #211A04

square

#04210B #040C21 #21041A #211A04

split-complementary

#04210B #1A0421 #21040C

monochromatic

#031B09 #031B09 #04210B #0B581D #118E2F

Accessibility & contrast

On white

17.11

#04210B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.23

#04210B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04210B

17.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04210B	#FFFFFF	#000000	##FFFFFF
##04210B	1.00	17.11	1.23	17.11
#FFFFFF	17.11	1.00	21.00	1.00
#000000	1.23	21.00	1.00	21.00
##FFFFFF	17.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#211D09

Deuteranopia (green-blind)

#1E1B0D

Tritanopia (blue-blind)

#00201C

Achromatopsia (no color)

#1C1C1C

Design tokens & code

CSS

--color: #04210b;
/* rgb */ color: rgb(4, 33, 11);
/* oklch */ color: oklch(21.9% 0.055 148.7);

Tailwind

colors: {
  custom: {
    50: '#485c4b',
    500: '#04210b',
    950: '#000000',
  },
}

SCSS

$custom: #04210b;
$custom-light: #485c4b;
$custom-dark: #000000;

JSON

{
  "hex": "#04210b",
  "rgb": {
    "r": 4,
    "g": 33,
    "b": 11
  },
  "hsl": {
    "h": 134.483,
    "s": 78.378,
    "l": 7.255
  },
  "oklch": {
    "l": 0.21907,
    "c": 0.05463,
    "h": 148.7
  },
  "luminance": 0.01138
}

Semantic roles & 50–950 ramp

primary

#04210B

secondary

#641D53

accent

#33C6F5

background

#F4F5F4

surface

#E6E9E7

border

#C2C5C3

text

#000401

muted

#777977

Preview Lab

Preview with #04210B

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

Preview Lab → · Contrast checker → · Palette generator →