#0A243C#0A243C

#0A243C is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.4% C 0.055 H 249.4°. Best body text is #FFFFFF at 15.78:1 contrast (WCAG AA passes).

Color values

HEX	#0A243C
RGB	rgb(10, 36, 60)
HSL	hsl(209, 71%, 14%)
HSV	hsv(209, 83%, 24%)
CMYK	cmyk(83.3%, 40%, 0%, 76.5%)
CIE-LAB	lab(13.55, 0.02, -18.26)
CIE-LCH	lch(13.55, 18.26, 270.07°)
OKLab	oklab(25.43% -0.0195 -0.0519)
OKLCH	oklch(25.43% 0.055 249.4)
XYZ	xyz(1.5714, 1.6524, 4.5102)
Luminance	0.0165 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A243C #3C220A

analogous

#0A3C3B #0A243C #0A0B3C

triadic

#0A243C #3C0A24 #243C0A

tetradic

#0A243C #3B0A3C #3C220A #0B3C0A

square

#0A243C #3B0A3C #3C220A #0B3C0A

split-complementary

#0A243C #3C0A0B #3C3B0A

monochromatic

#04101A #04101A #0A243C #134370 #1B63A5

Accessibility & contrast

On white

15.78

#0A243C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#0A243C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A243C

15.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A243C	#FFFFFF	#000000	##FFFFFF
##0A243C	1.00	15.78	1.33	15.78
#FFFFFF	15.78	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19253D

Deuteranopia (green-blind)

#12213C

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0a243c;
/* rgb */ color: rgb(10, 36, 60);
/* oklch */ color: oklch(25.4% 0.055 249.4);

Tailwind

colors: {
  custom: {
    50: '#515e72',
    500: '#0a243c',
    950: '#000000',
  },
}

SCSS

$custom: #0a243c;
$custom-light: #515e72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a243c",
  "rgb": {
    "r": 10,
    "g": 36,
    "b": 60
  },
  "hsl": {
    "h": 208.8,
    "s": 71.429,
    "l": 13.725
  },
  "oklch": {
    "l": 0.25428,
    "c": 0.05542,
    "h": 249.4
  },
  "luminance": 0.01653
}

Semantic roles & 50–950 ramp

primary

#0A243C

secondary

#794F28

accent

#903AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020408

muted

#78797B

Preview Lab

Preview with #0A243C

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

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