#0A373D#0A373D

#0A373D is a dark, muted teal. Relative luminance 0.031; OKLCH L 31.0% C 0.048 H 208.1°. Best body text is #FFFFFF at 12.91:1 contrast (WCAG AA passes).

Color values

HEX	#0A373D
RGB	rgb(10, 55, 61)
HSL	hsl(187, 72%, 14%)
HSV	hsv(187, 84%, 24%)
CMYK	cmyk(83.6%, 9.8%, 0%, 76.1%)
CIE-LAB	lab(20.57, -12.32, -8.06)
CIE-LCH	lch(20.57, 14.72, 213.21°)
OKLab	oklab(31.05% -0.042 -0.0224)
OKLCH	oklch(31.05% 0.048 208.1)
XYZ	xyz(2.3333, 3.1336, 4.8958)
Luminance	0.0313 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A373D #3D100A

analogous

#0A3D2A #0A373D #0A1E3D

triadic

#0A373D #3D0A37 #373D0A

tetradic

#0A373D #2A0A3D #3D100A #1E3D0A

square

#0A373D #2A0A3D #3D100A #1E3D0A

split-complementary

#0A373D #3D0A1E #3D2A0A

monochromatic

#04181A #04181A #0A373D #136672 #1B96A6

Accessibility & contrast

On white

12.91

#0A373D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.63

#0A373D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A373D

12.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A373D	#FFFFFF	#000000	##FFFFFF
##0A373D	1.00	12.91	1.63	12.91
#FFFFFF	12.91	1.00	21.00	1.00
#000000	1.63	21.00	1.00	21.00
##FFFFFF	12.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31353D

Deuteranopia (green-blind)

#2A2F3D

Tritanopia (blue-blind)

#003A39

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #0a373d;
/* rgb */ color: rgb(10, 55, 61);
/* oklch */ color: oklch(31.0% 0.048 208.1);

Tailwind

colors: {
  custom: {
    50: '#536e72',
    500: '#0a373d',
    950: '#000000',
  },
}

SCSS

$custom: #0a373d;
$custom-light: #536e72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a373d",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 61
  },
  "hsl": {
    "h": 187.059,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.31049,
    "c": 0.04759,
    "h": 208.1
  },
  "luminance": 0.03134
}

Semantic roles & 50–950 ramp

primary

#0A373D

secondary

#7A3228

accent

#4F39EF

background

#F5F6F6

surface

#E8EBEC

border

#C4C6C7

text

#030708

muted

#787A7B

Preview Lab

Preview with #0A373D

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

Preview Lab → · Contrast checker → · Palette generator →