#0A2A4A#0A2A4A

#0A2A4A is a dark, moderate cyan. Relative luminance 0.022; OKLCH L 28.1% C 0.070 H 251.8°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#0A2A4A
RGB	rgb(10, 42, 74)
HSL	hsl(210, 76%, 16%)
HSV	hsv(210, 86%, 29%)
CMYK	cmyk(86.5%, 43.2%, 0%, 71%)
CIE-LAB	lab(16.58, 1.84, -23.14)
CIE-LCH	lch(16.58, 23.22, 274.54°)
OKLab	oklab(28.1% -0.0217 -0.0661)
OKLCH	oklch(28.1% 0.07 251.8)
XYZ	xyz(2.1887, 2.2146, 6.7893)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2A4A #4A2A0A

analogous

#0A4A4A #0A2A4A #0A0A4A

triadic

#0A2A4A #4A0A2A #2A4A0A

tetradic

#0A2A4A #4A0A4A #4A2A0A #0A4A0A

square

#0A2A4A #4A0A4A #4A2A0A #0A4A0A

split-complementary

#0A2A4A #4A0A0A #4A4A0A

monochromatic

#040F1B #040F1B #0A2A4A #114980 #1967B6

Accessibility & contrast

On white

14.55

#0A2A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#0A2A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2A4A

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2A4A	#FFFFFF	#000000	##FFFFFF
##0A2A4A	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B2C4B

Deuteranopia (green-blind)

#112649

Tritanopia (blue-blind)

#003236

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #0a2a4a;
/* rgb */ color: rgb(10, 42, 74);
/* oklch */ color: oklch(28.1% 0.070 251.8);

Tailwind

colors: {
  custom: {
    50: '#55637d',
    500: '#0a2a4a',
    950: '#000000',
  },
}

SCSS

$custom: #0a2a4a;
$custom-light: #55637d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2a4a",
  "rgb": {
    "r": 10,
    "g": 42,
    "b": 74
  },
  "hsl": {
    "h": 210,
    "s": 76.19,
    "l": 16.471
  },
  "oklch": {
    "l": 0.28096,
    "c": 0.06955,
    "h": 251.8
  },
  "luminance": 0.02215
}

Semantic roles & 50–950 ramp

primary

#0A2A4A

secondary

#875829

accent

#9435F3

background

#F5F5F7

surface

#E9EAEE

border

#C5C6C9

text

#030509

muted

#78797B

Preview Lab

Preview with #0A2A4A

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

Preview Lab → · Contrast checker → · Palette generator →