#0A333C#0A333C

#0A333C is a dark, muted cyan. Relative luminance 0.028; OKLCH L 29.8% C 0.046 H 215.7°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#0A333C
RGB	rgb(10, 51, 60)
HSL	hsl(191, 71%, 14%)
HSV	hsv(191, 83%, 24%)
CMYK	cmyk(83.3%, 15%, 0%, 76.5%)
CIE-LAB	lab(19.05, -10.23, -9.70)
CIE-LCH	lch(19.05, 14.10, 223.49°)
OKLab	oklab(29.81% -0.0376 -0.027)
OKLCH	oklch(29.81% 0.046 215.7)
XYZ	xyz(2.1243, 2.7582, 4.6945)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A333C #3C130A

analogous

#0A3C2C #0A333C #0A1A3C

triadic

#0A333C #3C0A33 #333C0A

tetradic

#0A333C #2C0A3C #3C130A #1A3C0A

square

#0A333C #2C0A3C #3C130A #1A3C0A

split-complementary

#0A333C #3C0A1A #3C2C0A

monochromatic

#04161A #04161A #0A333C #136070 #1B8CA5

Accessibility & contrast

On white

13.53

#0A333C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#0A333C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A333C

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A333C	#FFFFFF	#000000	##FFFFFF
##0A333C	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D313D

Deuteranopia (green-blind)

#262C3C

Tritanopia (blue-blind)

#003636

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #0a333c;
/* rgb */ color: rgb(10, 51, 60);
/* oklch */ color: oklch(29.8% 0.046 215.7);

Tailwind

colors: {
  custom: {
    50: '#526a71',
    500: '#0a333c',
    950: '#000000',
  },
}

SCSS

$custom: #0a333c;
$custom-light: #526a71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a333c",
  "rgb": {
    "r": 10,
    "g": 51,
    "b": 60
  },
  "hsl": {
    "h": 190.8,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.29807,
    "c": 0.04631,
    "h": 215.7
  },
  "luminance": 0.02758
}

Semantic roles & 50–950 ramp

primary

#0A333C

secondary

#793728

accent

#5A3AEE

background

#F4F6F6

surface

#E7EBEC

border

#C3C6C7

text

#030607

muted

#787A7A

Preview Lab

Preview with #0A333C

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

Preview Lab → · Contrast checker → · Palette generator →