#04311B#04311B

#04311B is a dark, moderate teal. Relative luminance 0.023; OKLCH L 27.7% C 0.063 H 156.6°. Best body text is #FFFFFF at 14.38:1 contrast (WCAG AA passes).

Color values

HEX	#04311B
RGB	rgb(4, 49, 27)
HSL	hsl(151, 85%, 10%)
HSV	hsv(151, 92%, 19%)
CMYK	cmyk(91.8%, 0%, 44.9%, 80.8%)
CIE-LAB	lab(17.00, -21.25, 9.92)
CIE-LCH	lch(17.00, 23.45, 154.97°)
OKLab	oklab(27.72% -0.0574 0.0249)
OKLCH	oklch(27.72% 0.063 156.6)
XYZ	xyz(1.3461, 2.3014, 1.4100)
Luminance	0.0230 (WCAG relative)
Temperature	neutral
Family	teal

Closest named colors

Hunter Green (survey)

#0B4008

ΔE00 9.75

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#04311B #31041A

analogous

#043105 #04311B #043031

triadic

#04311B #1B0431 #311B04

tetradic

#04311B #050431 #31041A #303104

square

#04311B #050431 #31041A #303104

split-complementary

#04311B #310430 #310504

monochromatic

#021C10 #021C10 #04311B #096A3A #0DA259

Accessibility & contrast

On white

14.38

#04311B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#04311B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #04311B

14.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##04311B	#FFFFFF	#000000	##FFFFFF
##04311B	1.00	14.38	1.46	14.38
#FFFFFF	14.38	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#312C1A

Deuteranopia (green-blind)

#2B281C

Tritanopia (blue-blind)

#00302B

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #04311b;
/* rgb */ color: rgb(4, 49, 27);
/* oklch */ color: oklch(27.7% 0.063 156.6);

Tailwind

colors: {
  custom: {
    50: '#4c6957',
    500: '#04311b',
    950: '#000000',
  },
}

SCSS

$custom: #04311b;
$custom-light: #4c6957;
$custom-dark: #000000;

JSON

{
  "hex": "#04311b",
  "rgb": {
    "r": 4,
    "g": 49,
    "b": 27
  },
  "hsl": {
    "h": 150.667,
    "s": 84.906,
    "l": 10.392
  },
  "oklch": {
    "l": 0.27718,
    "c": 0.06251,
    "h": 156.6
  },
  "luminance": 0.02302
}

Semantic roles & 50–950 ramp

primary

#04311B

secondary

#731D47

accent

#2D92FB

background

#F4F6F5

surface

#E7EBE9

border

#C3C6C5

text

#010603

muted

#777A78

Preview Lab

Preview with #04311B

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

Preview Lab → · Contrast checker → · Palette generator →