#0A3137#0A3137

#0A3137 is a dark, muted teal. Relative luminance 0.025; OKLCH L 29.0% C 0.043 H 209.7°. Best body text is #FFFFFF at 13.93:1 contrast (WCAG AA passes).

Color values

HEX	#0A3137
RGB	rgb(10, 49, 55)
HSL	hsl(188, 69%, 13%)
HSV	hsv(188, 82%, 22%)
CMYK	cmyk(81.8%, 10.9%, 0%, 78.4%)
CIE-LAB	lab(18.08, -10.91, -7.73)
CIE-LCH	lch(18.08, 13.38, 215.33°)
OKLab	oklab(28.96% -0.0376 -0.0215)
OKLCH	oklch(28.96% 0.043 209.7)
XYZ	xyz(1.9128, 2.5368, 4.0025)
Luminance	0.0254 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A3137 #37100A

analogous

#0A3726 #0A3137 #0A1A37

triadic

#0A3137 #370A31 #31370A

tetradic

#0A3137 #260A37 #37100A #1A370A

square

#0A3137 #260A37 #37100A #1A370A

split-complementary

#0A3137 #370A1A #37260A

monochromatic

#05171A #05171A #0A3137 #135F6B #1D8D9F

Accessibility & contrast

On white

13.93

#0A3137 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0A3137 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A3137

13.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A3137	#FFFFFF	#000000	##FFFFFF
##0A3137	1.00	13.93	1.51	13.93
#FFFFFF	13.93	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C2F37

Deuteranopia (green-blind)

#252A37

Tritanopia (blue-blind)

#003433

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0a3137;
/* rgb */ color: rgb(10, 49, 55);
/* oklch */ color: oklch(29.0% 0.043 209.7);

Tailwind

colors: {
  custom: {
    50: '#51696d',
    500: '#0a3137',
    950: '#000000',
  },
}

SCSS

$custom: #0a3137;
$custom-light: #51696d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a3137",
  "rgb": {
    "r": 10,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 188,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.28958,
    "c": 0.04333,
    "h": 209.7
  },
  "luminance": 0.02537
}

Semantic roles & 50–950 ramp

primary

#0A3137

secondary

#743328

accent

#533CEC

background

#F4F6F6

surface

#E7EBEB

border

#C3C6C6

text

#020607

muted

#787A7A

Preview Lab

Preview with #0A3137

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

Preview Lab → · Contrast checker → · Palette generator →