#0A273A#0A273A

#0A273A is a dark, muted cyan. Relative luminance 0.018; OKLCH L 26.2% C 0.049 H 241.2°. Best body text is #FFFFFF at 15.39:1 contrast (WCAG AA passes).

Color values

HEX	#0A273A
RGB	rgb(10, 39, 58)
HSL	hsl(204, 71%, 13%)
HSV	hsv(204, 83%, 23%)
CMYK	cmyk(82.8%, 32.8%, 0%, 77.3%)
CIE-LAB	lab(14.52, -3.02, -15.33)
CIE-LCH	lch(14.52, 15.62, 258.84°)
OKLab	oklab(26.16% -0.0238 -0.0433)
OKLCH	oklch(26.16% 0.049 241.2)
XYZ	xyz(1.6141, 1.8209, 4.2686)
Luminance	0.0182 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A273A #3A1D0A

analogous

#0A3A35 #0A273A #0A0F3A

triadic

#0A273A #3A0A27 #273A0A

tetradic

#0A273A #350A3A #3A1D0A #0F3A0A

square

#0A273A #350A3A #3A1D0A #0F3A0A

split-complementary

#0A273A #3A0A0F #3A350A

monochromatic

#05121A #05121A #0A273A #134A6E #1C6DA2

Accessibility & contrast

On white

15.39

#0A273A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#0A273A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A273A

15.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A273A	#FFFFFF	#000000	##FFFFFF
##0A273A	1.00	15.39	1.36	15.39
#FFFFFF	15.39	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E273B

Deuteranopia (green-blind)

#18233A

Tritanopia (blue-blind)

#002C2E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0a273a;
/* rgb */ color: rgb(10, 39, 58);
/* oklch */ color: oklch(26.2% 0.049 241.2);

Tailwind

colors: {
  custom: {
    50: '#516070',
    500: '#0a273a',
    950: '#000000',
  },
}

SCSS

$custom: #0a273a;
$custom-light: #516070;
$custom-dark: #000000;

JSON

{
  "hex": "#0a273a",
  "rgb": {
    "r": 10,
    "g": 39,
    "b": 58
  },
  "hsl": {
    "h": 203.75,
    "s": 70.588,
    "l": 13.333
  },
  "oklch": {
    "l": 0.26155,
    "c": 0.0494,
    "h": 241.2
  },
  "luminance": 0.01821
}

Semantic roles & 50–950 ramp

primary

#0A273A

secondary

#774828

accent

#813AED

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0A273A

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

Preview Lab → · Contrast checker → · Palette generator →