#0A2440#0A2440

#0A2440 is a dark, moderate cyan. Relative luminance 0.017; OKLCH L 25.7% C 0.062 H 252.8°. Best body text is #FFFFFF at 15.68:1 contrast (WCAG AA passes).

Color values

HEX	#0A2440
RGB	rgb(10, 36, 64)
HSL	hsl(211, 73%, 15%)
HSV	hsv(211, 84%, 25%)
CMYK	cmyk(84.4%, 43.8%, 0%, 74.9%)
CIE-LAB	lab(13.81, 1.80, -20.65)
CIE-LCH	lch(13.81, 20.73, 274.99°)
OKLab	oklab(25.72% -0.0182 -0.0589)
OKLCH	oklch(25.72% 0.062 252.8)
XYZ	xyz(1.6811, 1.6963, 5.0883)
Luminance	0.0170 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2440 #40260A

analogous

#0A3F40 #0A2440 #0B0A40

triadic

#0A2440 #400A24 #24400A

tetradic

#0A2440 #400A3F #40260A #0A400B

square

#0A2440 #400A3F #40260A #0A400B

split-complementary

#0A2440 #400B0A #3F400A

monochromatic

#040F1A #040F1A #0A2440 #124275 #1B60AA

Accessibility & contrast

On white

15.68

#0A2440 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#0A2440 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2440

15.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2440	#FFFFFF	#000000	##FFFFFF
##0A2440	1.00	15.68	1.34	15.68
#FFFFFF	15.68	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172641

Deuteranopia (green-blind)

#0F213F

Tritanopia (blue-blind)

#002B2E

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0a2440;
/* rgb */ color: rgb(10, 36, 64);
/* oklch */ color: oklch(25.7% 0.062 252.8);

Tailwind

colors: {
  custom: {
    50: '#525e75',
    500: '#0a2440',
    950: '#000000',
  },
}

SCSS

$custom: #0a2440;
$custom-light: #525e75;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2440",
  "rgb": {
    "r": 10,
    "g": 36,
    "b": 64
  },
  "hsl": {
    "h": 211.111,
    "s": 72.973,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25716,
    "c": 0.06163,
    "h": 252.8
  },
  "luminance": 0.01696
}

Semantic roles & 50–950 ramp

primary

#0A2440

secondary

#7D5429

accent

#9738F0

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #0A2440

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

Preview Lab → · Contrast checker → · Palette generator →