#0A243A#0A243A

#0A243A is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.3% C 0.052 H 247.3°. Best body text is #FFFFFF at 15.83:1 contrast (WCAG AA passes).

Color values

HEX	#0A243A
RGB	rgb(10, 36, 58)
HSL	hsl(208, 71%, 13%)
HSV	hsv(208, 83%, 23%)
CMYK	cmyk(82.8%, 37.9%, 0%, 77.3%)
CIE-LAB	lab(13.42, -0.86, -17.05)
CIE-LCH	lch(13.42, 17.07, 267.12°)
OKLab	oklab(25.29% -0.0202 -0.0483)
OKLCH	oklch(25.29% 0.052 247.3)
XYZ	xyz(1.5195, 1.6316, 4.2370)
Luminance	0.0163 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A243A #3A200A

analogous

#0A3A38 #0A243A #0A0C3A

triadic

#0A243A #3A0A24 #243A0A

tetradic

#0A243A #380A3A #3A200A #0C3A0A

square

#0A243A #380A3A #3A200A #0C3A0A

split-complementary

#0A243A #3A0A0C #3A380A

monochromatic

#05101A #05101A #0A243A #13446E #1C65A2

Accessibility & contrast

On white

15.83

#0A243A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#0A243A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A243A

15.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A243A	#FFFFFF	#000000	##FFFFFF
##0A243A	1.00	15.83	1.33	15.83
#FFFFFF	15.83	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A253B

Deuteranopia (green-blind)

#13203A

Tritanopia (blue-blind)

#00292C

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0a243a;
/* rgb */ color: rgb(10, 36, 58);
/* oklch */ color: oklch(25.3% 0.052 247.3);

Tailwind

colors: {
  custom: {
    50: '#515e70',
    500: '#0a243a',
    950: '#000000',
  },
}

SCSS

$custom: #0a243a;
$custom-light: #515e70;
$custom-dark: #000000;

JSON

{
  "hex": "#0a243a",
  "rgb": {
    "r": 10,
    "g": 36,
    "b": 58
  },
  "hsl": {
    "h": 207.5,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.2529,
    "c": 0.05238,
    "h": 247.3
  },
  "luminance": 0.01632
}

Semantic roles & 50–950 ramp

primary

#0A243A

secondary

#774D28

accent

#8C3AED

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A243A

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

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