#0A243D#0A243D

#0A243D is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.5% C 0.057 H 250.3°. Best body text is #FFFFFF at 15.76:1 contrast (WCAG AA passes).

Color values

HEX	#0A243D
RGB	rgb(10, 36, 61)
HSL	hsl(209, 72%, 14%)
HSV	hsv(209, 84%, 24%)
CMYK	cmyk(83.6%, 41%, 0%, 76.1%)
CIE-LAB	lab(13.61, 0.47, -18.86)
CIE-LCH	lch(13.61, 18.87, 271.41°)
OKLab	oklab(25.5% -0.0192 -0.0536)
OKLCH	oklch(25.5% 0.057 250.3)
XYZ	xyz(1.5980, 1.6630, 4.6507)
Luminance	0.0166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A243D #3D230A

analogous

#0A3D3D #0A243D #0A0B3D

triadic

#0A243D #3D0A24 #243D0A

tetradic

#0A243D #3D0A3D #3D230A #0B3D0A

square

#0A243D #3D0A3D #3D230A #0B3D0A

split-complementary

#0A243D #3D0A0B #3D3D0A

monochromatic

#04101A #04101A #0A243D #134372 #1B62A6

Accessibility & contrast

On white

15.76

#0A243D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.33

#0A243D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A243D

15.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A243D	#FFFFFF	#000000	##FFFFFF
##0A243D	1.00	15.76	1.33	15.76
#FFFFFF	15.76	1.00	21.00	1.00
#000000	1.33	21.00	1.00	21.00
##FFFFFF	15.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19253E

Deuteranopia (green-blind)

#11213D

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0a243d;
/* rgb */ color: rgb(10, 36, 61);
/* oklch */ color: oklch(25.5% 0.057 250.3);

Tailwind

colors: {
  custom: {
    50: '#515e72',
    500: '#0a243d',
    950: '#000000',
  },
}

SCSS

$custom: #0a243d;
$custom-light: #515e72;
$custom-dark: #000000;

JSON

{
  "hex": "#0a243d",
  "rgb": {
    "r": 10,
    "g": 36,
    "b": 61
  },
  "hsl": {
    "h": 209.412,
    "s": 71.831,
    "l": 13.922
  },
  "oklch": {
    "l": 0.25498,
    "c": 0.05696,
    "h": 250.3
  },
  "luminance": 0.01663
}

Semantic roles & 50–950 ramp

primary

#0A243D

secondary

#7A5128

accent

#9239EF

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020408

muted

#78797B

Preview Lab

Preview with #0A243D

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

Preview Lab → · Contrast checker → · Palette generator →