#0A373B#0A373B

#0A373B is a dark, muted teal. Relative luminance 0.031; OKLCH L 31.0% C 0.047 H 203.8°. Best body text is #FFFFFF at 12.94:1 contrast (WCAG AA passes).

Color values

HEX	#0A373B
RGB	rgb(10, 55, 59)
HSL	hsl(185, 71%, 14%)
HSV	hsv(185, 83%, 23%)
CMYK	cmyk(83.1%, 6.8%, 0%, 76.9%)
CIE-LAB	lab(20.49, -13.07, -6.83)
CIE-LCH	lch(20.49, 14.75, 207.60°)
OKLab	oklab(30.96% -0.043 -0.019)
OKLCH	oklch(30.96% 0.047 203.8)
XYZ	xyz(2.2804, 3.1124, 4.6174)
Luminance	0.0311 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A373B #3B0E0A

analogous

#0A3B26 #0A373B #0A1E3B

triadic

#0A373B #3B0A37 #373B0A

tetradic

#0A373B #260A3B #3B0E0A #1E3B0A

square

#0A373B #260A3B #3B0E0A #1E3B0A

split-complementary

#0A373B #3B0A1E #3B260A

monochromatic

#04181A #04181A #0A373B #13686F #1C99A4

Accessibility & contrast

On white

12.94

#0A373B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#0A373B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A373B

12.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A373B	#FFFFFF	#000000	##FFFFFF
##0A373B	1.00	12.94	1.62	12.94
#FFFFFF	12.94	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32343B

Deuteranopia (green-blind)

#2B2F3B

Tritanopia (blue-blind)

#003A38

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #0a373b;
/* rgb */ color: rgb(10, 55, 59);
/* oklch */ color: oklch(31.0% 0.047 203.8);

Tailwind

colors: {
  custom: {
    50: '#536e70',
    500: '#0a373b',
    950: '#000000',
  },
}

SCSS

$custom: #0a373b;
$custom-light: #536e70;
$custom-dark: #000000;

JSON

{
  "hex": "#0a373b",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 184.898,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.30955,
    "c": 0.047,
    "h": 203.8
  },
  "luminance": 0.03113
}

Semantic roles & 50–950 ramp

primary

#0A373B

secondary

#782F28

accent

#493AEE

background

#F4F6F6

surface

#E8EBEC

border

#C4C6C7

text

#030707

muted

#787A7A

Preview Lab

Preview with #0A373B

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

Preview Lab → · Contrast checker → · Palette generator →