#0A313A#0A313A

#0A313A is a dark, muted cyan. Relative luminance 0.026; OKLCH L 29.1% C 0.045 H 216.5°. Best body text is #FFFFFF at 13.88:1 contrast (WCAG AA passes).

Color values

HEX	#0A313A
RGB	rgb(10, 49, 58)
HSL	hsl(191, 71%, 13%)
HSV	hsv(191, 83%, 23%)
CMYK	cmyk(82.8%, 15.5%, 0%, 77.3%)
CIE-LAB	lab(18.22, -9.75, -9.60)
CIE-LCH	lch(18.22, 13.68, 224.57°)
OKLab	oklab(29.11% -0.0361 -0.0268)
OKLCH	oklch(29.11% 0.045 216.5)
XYZ	xyz(1.9869, 2.5664, 4.3928)
Luminance	0.0257 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A313A #3A130A

analogous

#0A3A2B #0A313A #0A193A

triadic

#0A313A #3A0A31 #313A0A

tetradic

#0A313A #2B0A3A #3A130A #193A0A

square

#0A313A #2B0A3A #3A130A #193A0A

split-complementary

#0A313A #3A0A19 #3A2B0A

monochromatic

#05161A #05161A #0A313A #135D6E #1C89A2

Accessibility & contrast

On white

13.88

#0A313A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.51

#0A313A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A313A

13.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A313A	#FFFFFF	#000000	##FFFFFF
##0A313A	1.00	13.88	1.51	13.88
#FFFFFF	13.88	1.00	21.00	1.00
#000000	1.51	21.00	1.00	21.00
##FFFFFF	13.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B2F3B

Deuteranopia (green-blind)

#242A3A

Tritanopia (blue-blind)

#003434

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #0a313a;
/* rgb */ color: rgb(10, 49, 58);
/* oklch */ color: oklch(29.1% 0.045 216.5);

Tailwind

colors: {
  custom: {
    50: '#526970',
    500: '#0a313a',
    950: '#000000',
  },
}

SCSS

$custom: #0a313a;
$custom-light: #526970;
$custom-dark: #000000;

JSON

{
  "hex": "#0a313a",
  "rgb": {
    "r": 10,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 191.25,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.29108,
    "c": 0.04496,
    "h": 216.5
  },
  "luminance": 0.02567
}

Semantic roles & 50–950 ramp

primary

#0A313A

secondary

#773728

accent

#5C3AED

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#020607

muted

#787A7A

Preview Lab

Preview with #0A313A

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

Preview Lab → · Contrast checker → · Palette generator →