#0B312B#0B312B

#0B312B is a dark, muted teal. Relative luminance 0.024; OKLCH L 28.5% C 0.044 H 180.6°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#0B312B
RGB	rgb(11, 49, 43)
HSL	hsl(171, 63%, 12%)
HSV	hsv(171, 78%, 19%)
CMYK	cmyk(77.6%, 0%, 12.2%, 80.8%)
CIE-LAB	lab(17.65, -15.02, -0.07)
CIE-LCH	lch(17.65, 15.02, 180.26°)
OKLab	oklab(28.47% -0.0436 -0.0004)
OKLCH	oklch(28.47% 0.044 180.6)
XYZ	xyz(1.6722, 2.4420, 2.6683)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B312B #310B11

analogous

#0B3118 #0B312B #0B2431

triadic

#0B312B #2B0B31 #312B0B

tetradic

#0B312B #180B31 #310B11 #24310B

square

#0B312B #180B31 #310B11 #24310B

split-complementary

#0B312B #310B24 #31180B

monochromatic

#061916 #061916 #0B312B #166357 #219583

Accessibility & contrast

On white

14.11

#0B312B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#0B312B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B312B

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B312B	#FFFFFF	#000000	##FFFFFF
##0B312B	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F2E2B

Deuteranopia (green-blind)

#292A2C

Tritanopia (blue-blind)

#00322F

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #0b312b;
/* rgb */ color: rgb(11, 49, 43);
/* oklch */ color: oklch(28.5% 0.044 180.6);

Tailwind

colors: {
  custom: {
    50: '#506964',
    500: '#0b312b',
    950: '#000000',
  },
}

SCSS

$custom: #0b312b;
$custom-light: #506964;
$custom-dark: #000000;

JSON

{
  "hex": "#0b312b",
  "rgb": {
    "r": 11,
    "g": 49,
    "b": 43
  },
  "hsl": {
    "h": 170.526,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.28466,
    "c": 0.04361,
    "h": 180.6
  },
  "luminance": 0.02442
}

Semantic roles & 50–950 ramp

primary

#0B312B

secondary

#6E2A35

accent

#415BE6

background

#F4F6F5

surface

#E7EBEA

border

#C3C6C6

text

#020605

muted

#787A79

Preview Lab

Preview with #0B312B

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

Preview Lab → · Contrast checker → · Palette generator →