#0A211D#0A211D

#0A211D is a very dark, muted teal. Relative luminance 0.012; OKLCH L 22.8% C 0.030 H 180.5°. Best body text is #FFFFFF at 16.82:1 contrast (WCAG AA passes).

Color values

HEX	#0A211D
RGB	rgb(10, 33, 29)
HSL	hsl(170, 53%, 8%)
HSV	hsv(170, 70%, 13%)
CMYK	cmyk(69.7%, 0%, 12.1%, 87.1%)
CIE-LAB	lab(10.86, -10.34, -0.04)
CIE-LCH	lch(10.86, 10.34, 180.23°)
OKLab	oklab(22.77% -0.0301 -0.0003)
OKLCH	oklch(22.77% 0.03 180.5)
XYZ	xyz(0.8907, 1.2409, 1.3547)
Luminance	0.0124 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A211D #210A0E

analogous

#0A2111 #0A211D #0A1921

triadic

#0A211D #1D0A21 #211D0A

tetradic

#0A211D #110A21 #210A0E #19210A

square

#0A211D #110A21 #210A0E #19210A

split-complementary

#0A211D #210A19 #21110A

monochromatic

#071715 #071715 #0A211D #185046 #267F70

Accessibility & contrast

On white

16.82

#0A211D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.25

#0A211D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A211D

16.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A211D	#FFFFFF	#000000	##FFFFFF
##0A211D	1.00	16.82	1.25	16.82
#FFFFFF	16.82	1.00	21.00	1.00
#000000	1.25	21.00	1.00	21.00
##FFFFFF	16.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F1F1D

Deuteranopia (green-blind)

#1C1C1D

Tritanopia (blue-blind)

#012220

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #0a211d;
/* rgb */ color: rgb(10, 33, 29);
/* oklch */ color: oklch(22.8% 0.030 180.5);

Tailwind

colors: {
  custom: {
    50: '#4b5c58',
    500: '#0a211d',
    950: '#000000',
  },
}

SCSS

$custom: #0a211d;
$custom-light: #4b5c58;
$custom-dark: #000000;

JSON

{
  "hex": "#0a211d",
  "rgb": {
    "r": 10,
    "g": 33,
    "b": 29
  },
  "hsl": {
    "h": 169.565,
    "s": 53.488,
    "l": 8.431
  },
  "oklch": {
    "l": 0.22773,
    "c": 0.03013,
    "h": 180.5
  },
  "luminance": 0.01241
}

Semantic roles & 50–950 ramp

primary

#0A211D

secondary

#5D2A33

accent

#4B64DD

background

#F4F5F5

surface

#E7E9E9

border

#C3C5C5

text

#010403

muted

#777978

Preview Lab

Preview with #0A211D

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

Preview Lab → · Contrast checker → · Palette generator →