#0A2A33#0A2A33

#0A2A33 is a dark, muted cyan. Relative luminance 0.020; OKLCH L 26.6% C 0.040 H 220.0°. Best body text is #FFFFFF at 15.09:1 contrast (WCAG AA passes).

Color values

HEX#0A2A33
RGBrgb(10, 42, 51)
HSLhsl(193, 67%, 12%)
HSVhsv(193, 80%, 20%)
CMYKcmyk(80.4%, 17.6%, 0%, 80%)
CIE-LABlab(15.27, -7.99, -9.23)
CIE-LCHlch(15.27, 12.21, 229.14°)
OKLaboklab(26.64% -0.0307 -0.0257)
OKLCHoklch(26.64% 0.04 220)
XYZxyz(1.5504, 1.9593, 3.4278)
Luminance0.0196 (WCAG relative)
Temperaturecool
Familycyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#0A2A33 #33130A
analogous
#0A3328 #0A2A33 #0A1633
triadic
#0A2A33 #330A2A #2A330A
tetradic
#0A2A33 #280A33 #33130A #16330A
square
#0A2A33 #280A33 #33130A #16330A
split-complementary
#0A2A33 #330A16 #33280A
monochromatic
#05151A #05151A #0A2A33 #145466 #1E7E99

Accessibility & contrast

On white

15.09
#0A2A33 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.39
#0A2A33 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A33
15.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##0A2A33#FFFFFF#000000##FFFFFF
##0A2A331.0015.091.3915.09
#FFFFFF15.091.0021.001.00
#0000001.3921.001.0021.00
##FFFFFF15.091.0021.001.00

Color blindness preview

Protanopia (red-blind)
#242933
Deuteranopia (green-blind)
#1F2433
Tritanopia (blue-blind)
#002D2D
Achromatopsia (no color)
#262626

Design tokens & code

CSS
--color: #0a2a33;
/* rgb */ color: rgb(10, 42, 51);
/* oklch */ color: oklch(26.6% 0.040 220.0);
Tailwind
colors: {
  custom: {
    50: '#4f636a',
    500: '#0a2a33',
    950: '#000000',
  },
}
SCSS
$custom: #0a2a33;
$custom-light: #4f636a;
$custom-dark: #000000;
JSON
{
  "hex": "#0a2a33",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 51
  },
  "hsl": {
    "h": 193.171,
    "s": 67.213,
    "l": 11.961
  },
  "oklch": {
    "l": 0.26637,
    "c": 0.04007,
    "h": 220
  },
  "luminance": 0.01959
}

Semantic roles & 50–950 ramp

primary
#0A2A33
secondary
#703828
accent
#643EEA
background
#F4F5F6
surface
#E7EAEB
border
#C3C6C6
text
#020506
muted
#78797A

Preview Lab

Preview with #0A2A33

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

Preview Lab → · Contrast checker → · Palette generator →

#0A2A33 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva