#0A2B4C#0A2B4C

#0A2B4C is a dark, moderate cyan. Relative luminance 0.023; OKLCH L 28.5% C 0.071 H 251.9°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#0A2B4C
RGB	rgb(10, 43, 76)
HSL	hsl(210, 77%, 17%)
HSV	hsv(210, 87%, 30%)
CMYK	cmyk(86.8%, 43.4%, 0%, 70.2%)
CIE-LAB	lab(17.05, 2.00, -23.74)
CIE-LCH	lch(17.05, 23.83, 274.81°)
OKLab	oklab(28.51% -0.0222 -0.0678)
OKLCH	oklch(28.51% 0.071 251.9)
XYZ	xyz(2.2931, 2.3138, 7.1618)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2B4C #4C2B0A

analogous

#0A4C4C #0A2B4C #0A0A4C

triadic

#0A2B4C #4C0A2B #2B4C0A

tetradic

#0A2B4C #4C0A4C #4C2B0A #0A4C0A

square

#0A2B4C #4C0A4C #4C2B0A #0A4C0A

split-complementary

#0A2B4C #4C0A0A #4C4C0A

monochromatic

#040F1B #040F1B #0A2B4C #114A82 #1868B8

Accessibility & contrast

On white

14.36

#0A2B4C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#0A2B4C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2B4C

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2B4C	#FFFFFF	#000000	##FFFFFF
##0A2B4C	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2D4D

Deuteranopia (green-blind)

#11274B

Tritanopia (blue-blind)

#003337

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #0a2b4c;
/* rgb */ color: rgb(10, 43, 76);
/* oklch */ color: oklch(28.5% 0.071 251.9);

Tailwind

colors: {
  custom: {
    50: '#55637e',
    500: '#0a2b4c',
    950: '#000000',
  },
}

SCSS

$custom: #0a2b4c;
$custom-light: #55637e;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2b4c",
  "rgb": {
    "r": 10,
    "g": 43,
    "b": 76
  },
  "hsl": {
    "h": 210,
    "s": 76.744,
    "l": 16.863
  },
  "oklch": {
    "l": 0.28514,
    "c": 0.07134,
    "h": 251.9
  },
  "luminance": 0.02314
}

Semantic roles & 50–950 ramp

primary

#0A2B4C

secondary

#895929

accent

#9435F3

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#03050A

muted

#78797C

Preview Lab

Preview with #0A2B4C

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

Preview Lab → · Contrast checker → · Palette generator →