#0A374A#0A374A

#0A374A is a dark, muted cyan. Relative luminance 0.033; OKLCH L 31.7% C 0.057 H 231.3°. Best body text is #FFFFFF at 12.66:1 contrast (WCAG AA passes).

Color values

HEX	#0A374A
RGB	rgb(10, 55, 74)
HSL	hsl(198, 76%, 16%)
HSV	hsv(198, 86%, 29%)
CMYK	cmyk(86.5%, 25.7%, 0%, 71%)
CIE-LAB	lab(21.17, -7.16, -15.91)
CIE-LCH	lch(21.17, 17.45, 245.76°)
OKLab	oklab(31.73% -0.0359 -0.0448)
OKLCH	oklch(31.73% 0.057 231.3)
XYZ	xyz(2.7269, 3.2910, 6.9687)
Luminance	0.0329 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A374A #4A1D0A

analogous

#0A4A3D #0A374A #0A174A

triadic

#0A374A #4A0A37 #374A0A

tetradic

#0A374A #3D0A4A #4A1D0A #174A0A

square

#0A374A #3D0A4A #4A1D0A #174A0A

split-complementary

#0A374A #4A0A17 #4A3D0A

monochromatic

#04141B #04141B #0A374A #115F80 #1987B6

Accessibility & contrast

On white

12.66

#0A374A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#0A374A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A374A

12.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A374A	#FFFFFF	#000000	##FFFFFF
##0A374A	1.00	12.66	1.66	12.66
#FFFFFF	12.66	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D364B

Deuteranopia (green-blind)

#25304A

Tritanopia (blue-blind)

#003C3D

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #0a374a;
/* rgb */ color: rgb(10, 55, 74);
/* oklch */ color: oklch(31.7% 0.057 231.3);

Tailwind

colors: {
  custom: {
    50: '#556d7c',
    500: '#0a374a',
    950: '#000000',
  },
}

SCSS

$custom: #0a374a;
$custom-light: #556d7c;
$custom-dark: #000000;

JSON

{
  "hex": "#0a374a",
  "rgb": {
    "r": 10,
    "g": 55,
    "b": 74
  },
  "hsl": {
    "h": 197.813,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.31732,
    "c": 0.0574,
    "h": 231.3
  },
  "luminance": 0.03291
}

Semantic roles & 50–950 ramp

primary

#0A374A

secondary

#874529

accent

#6D35F3

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#030709

muted

#787A7B

Preview Lab

Preview with #0A374A

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

Preview Lab → · Contrast checker → · Palette generator →