#0A3237#0A3237

#0A3237 is a dark, muted teal. Relative luminance 0.026; OKLCH L 29.3% C 0.044 H 207.1°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#0A3237
RGB	rgb(10, 50, 55)
HSL	hsl(187, 69%, 13%)
HSV	hsv(187, 82%, 22%)
CMYK	cmyk(81.8%, 9.1%, 0%, 78.4%)
CIE-LAB	lab(18.46, -11.53, -7.17)
CIE-LCH	lch(18.46, 13.58, 211.86°)
OKLab	oklab(29.26% -0.0389 -0.0199)
OKLCH	oklch(29.26% 0.044 207.1)
XYZ	xyz(1.9551, 2.6213, 4.0166)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3237 #370F0A

analogous

#0A3725 #0A3237 #0A1B37

triadic

#0A3237 #370A32 #32370A

tetradic

#0A3237 #250A37 #370F0A #1B370A

square

#0A3237 #250A37 #370F0A #1B370A

split-complementary

#0A3237 #370A1B #37250A

monochromatic

#05181A #05181A #0A3237 #13616B #1D909F

Accessibility & contrast

On white

13.78

#0A3237 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#0A3237 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3237

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3237	#FFFFFF	#000000	##FFFFFF
##0A3237	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D3037

Deuteranopia (green-blind)

#272B37

Tritanopia (blue-blind)

#003533

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #0a3237;
/* rgb */ color: rgb(10, 50, 55);
/* oklch */ color: oklch(29.3% 0.044 207.1);

Tailwind

colors: {
  custom: {
    50: '#516a6d',
    500: '#0a3237',
    950: '#000000',
  },
}

SCSS

$custom: #0a3237;
$custom-light: #516a6d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3237",
  "rgb": {
    "r": 10,
    "g": 50,
    "b": 55
  },
  "hsl": {
    "h": 186.667,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.2926,
    "c": 0.04368,
    "h": 207.1
  },
  "luminance": 0.02622
}

Semantic roles & 50–950 ramp

primary

#0A3237

secondary

#743128

accent

#4F3CEC

background

#F4F6F6

surface

#E7EBEB

border

#C3C6C6

text

#020607

muted

#787A7A

Preview Lab

Preview with #0A3237

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

Preview Lab → · Contrast checker → · Palette generator →