#0B2131#0B2131

#0B2131 is a very dark, muted cyan. Relative luminance 0.014; OKLCH L 23.9% C 0.042 H 242.8°. Best body text is #FFFFFF at 16.46:1 contrast (WCAG AA passes).

Color values

HEX	#0B2131
RGB	rgb(11, 33, 49)
HSL	hsl(205, 63%, 12%)
HSV	hsv(205, 78%, 19%)
CMYK	cmyk(77.6%, 32.7%, 0%, 80.8%)
CIE-LAB	lab(11.83, -2.37, -13.13)
CIE-LCH	lch(11.83, 13.35, 259.79°)
OKLab	oklab(23.87% -0.019 -0.037)
OKLCH	oklch(23.87% 0.042 242.8)
XYZ	xyz(1.2360, 1.3805, 3.1065)
Luminance	0.0138 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B2131 #311B0B

analogous

#0B312E #0B2131 #0B0E31

triadic

#0B2131 #310B21 #21310B

tetradic

#0B2131 #2E0B31 #311B0B #0E310B

square

#0B2131 #2E0B31 #311B0B #0E310B

split-complementary

#0B2131 #310B0E #312E0B

monochromatic

#061119 #061119 #0B2131 #164363 #216495

Accessibility & contrast

On white

16.46

#0B2131 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.28

#0B2131 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B2131

16.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B2131	#FFFFFF	#000000	##FFFFFF
##0B2131	1.00	16.46	1.28	16.46
#FFFFFF	16.46	1.00	21.00	1.00
#000000	1.28	21.00	1.00	21.00
##FFFFFF	16.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A2132

Deuteranopia (green-blind)

#151D31

Tritanopia (blue-blind)

#002527

Achromatopsia (no color)

#1F1F1F

Design tokens & code

CSS

--color: #0b2131;
/* rgb */ color: rgb(11, 33, 49);
/* oklch */ color: oklch(23.9% 0.042 242.8);

Tailwind

colors: {
  custom: {
    50: '#4f5c69',
    500: '#0b2131',
    950: '#000000',
  },
}

SCSS

$custom: #0b2131;
$custom-light: #4f5c69;
$custom-dark: #000000;

JSON

{
  "hex": "#0b2131",
  "rgb": {
    "r": 11,
    "g": 33,
    "b": 49
  },
  "hsl": {
    "h": 205.263,
    "s": 63.333,
    "l": 11.765
  },
  "oklch": {
    "l": 0.23869,
    "c": 0.04159,
    "h": 242.8
  },
  "luminance": 0.01381
}

Semantic roles & 50–950 ramp

primary

#0B2131

secondary

#6E472A

accent

#8741E6

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020406

muted

#78797A

Preview Lab

Preview with #0B2131

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

Preview Lab → · Contrast checker → · Palette generator →