#0A243B#0A243B

#0A243B is a dark, muted cyan. Relative luminance 0.016; OKLCH L 25.4% C 0.054 H 248.4°. Best body text is #FFFFFF at 15.81:1 contrast (WCAG AA passes).

Color values

HEX	#0A243B
RGB	rgb(10, 36, 59)
HSL	hsl(208, 71%, 14%)
HSV	hsv(208, 83%, 23%)
CMYK	cmyk(83.1%, 39%, 0%, 76.9%)
CIE-LAB	lab(13.48, -0.42, -17.65)
CIE-LCH	lch(13.48, 17.66, 268.64°)
OKLab	oklab(25.36% -0.0198 -0.0501)
OKLCH	oklch(25.36% 0.054 248.4)
XYZ	xyz(1.5452, 1.6419, 4.3723)
Luminance	0.0164 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A243B #3B210A

analogous

#0A3B39 #0A243B #0A0C3B

triadic

#0A243B #3B0A24 #243B0A

tetradic

#0A243B #390A3B #3B210A #0C3B0A

square

#0A243B #390A3B #3B210A #0C3B0A

split-complementary

#0A243B #3B0A0C #3B390A

monochromatic

#04101A #04101A #0A243B #13446F #1C64A4

Accessibility & contrast

On white

15.81

#0A243B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#0A243B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A243B

15.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A243B	#FFFFFF	#000000	##FFFFFF
##0A243B	1.00	15.81	1.33	15.81
#FFFFFF	15.81	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A253C

Deuteranopia (green-blind)

#13203B

Tritanopia (blue-blind)

#00292C

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0a243b;
/* rgb */ color: rgb(10, 36, 59);
/* oklch */ color: oklch(25.4% 0.054 248.4);

Tailwind

colors: {
  custom: {
    50: '#515e71',
    500: '#0a243b',
    950: '#000000',
  },
}

SCSS

$custom: #0a243b;
$custom-light: #515e71;
$custom-dark: #000000;

JSON

{
  "hex": "#0a243b",
  "rgb": {
    "r": 10,
    "g": 36,
    "b": 59
  },
  "hsl": {
    "h": 208.163,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.25358,
    "c": 0.05389,
    "h": 248.4
  },
  "luminance": 0.01642
}

Semantic roles & 50–950 ramp

primary

#0A243B

secondary

#784E28

accent

#8E3AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0A243B

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

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