#04231B#04231B

#04231B is a very dark, muted teal. Relative luminance 0.013; OKLCH L 23.1% C 0.040 H 172.5°. Best body text is #FFFFFF at 16.65:1 contrast (WCAG AA passes).

Color values

HEX	#04231B
RGB	rgb(4, 35, 27)
HSL	hsl(165, 79%, 8%)
HSV	hsv(165, 89%, 14%)
CMYK	cmyk(88.6%, 0%, 22.9%, 86.3%)
CIE-LAB	lab(11.32, -14.04, 2.06)
CIE-LCH	lch(11.32, 14.19, 171.64°)
OKLab	oklab(23.05% -0.0395 0.0052)
OKLCH	oklch(23.05% 0.04 172.5)
XYZ	xyz(0.8488, 1.3069, 1.2442)
Luminance	0.0131 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04231B #23040C

analogous

#04230B #04231B #041B23

triadic

#04231B #1B0423 #231B04

tetradic

#04231B #0B0423 #23040C #1B2304

square

#04231B #0B0423 #23040C #1B2304

split-complementary

#04231B #23041B #230B04

monochromatic

#031B15 #031B15 #04231B #0A5A45 #119170

Accessibility & contrast

On white

16.65

#04231B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#04231B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04231B

16.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04231B	#FFFFFF	#000000	##FFFFFF
##04231B	1.00	16.65	1.26	16.65
#FFFFFF	16.65	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22201B

Deuteranopia (green-blind)

#1D1D1C

Tritanopia (blue-blind)

#002321

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #04231b;
/* rgb */ color: rgb(4, 35, 27);
/* oklch */ color: oklch(23.1% 0.040 172.5);

Tailwind

colors: {
  custom: {
    50: '#485e57',
    500: '#04231b',
    950: '#000000',
  },
}

SCSS

$custom: #04231b;
$custom-light: #485e57;
$custom-dark: #000000;

JSON

{
  "hex": "#04231b",
  "rgb": {
    "r": 4,
    "g": 35,
    "b": 27
  },
  "hsl": {
    "h": 164.516,
    "s": 79.487,
    "l": 7.647
  },
  "oklch": {
    "l": 0.23054,
    "c": 0.03986,
    "h": 172.5
  },
  "luminance": 0.01307
}

Semantic roles & 50–950 ramp

primary

#04231B

secondary

#661D30

accent

#3264F6

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#010403

muted

#777978

Preview Lab

Preview with #04231B

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

Preview Lab → · Contrast checker → · Palette generator →