#0A273F#0A273F

#0A273F is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.5% C 0.057 H 247.2°. Best body text is #FFFFFF at 15.27:1 contrast (WCAG AA passes).

Color values

HEX	#0A273F
RGB	rgb(10, 39, 63)
HSL	hsl(207, 73%, 14%)
HSV	hsv(207, 84%, 25%)
CMYK	cmyk(84.1%, 38.1%, 0%, 75.3%)
CIE-LAB	lab(14.81, -0.85, -18.36)
CIE-LCH	lch(14.81, 18.38, 267.36°)
OKLab	oklab(26.48% -0.0219 -0.0521)
OKLCH	oklch(26.48% 0.057 247.2)
XYZ	xyz(1.7476, 1.8743, 4.9713)
Luminance	0.0187 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A273F #3F220A

analogous

#0A3F3D #0A273F #0A0C3F

triadic

#0A273F #3F0A27 #273F0A

tetradic

#0A273F #3D0A3F #3F220A #0C3F0A

square

#0A273F #3D0A3F #3F220A #0C3F0A

split-complementary

#0A273F #3F0A0C #3F3D0A

monochromatic

#04101A #04101A #0A273F #124874 #1B68A9

Accessibility & contrast

On white

15.27

#0A273F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#0A273F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A273F

15.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A273F	#FFFFFF	#000000	##FFFFFF
##0A273F	1.00	15.27	1.37	15.27
#FFFFFF	15.27	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C2840

Deuteranopia (green-blind)

#15233F

Tritanopia (blue-blind)

#002D30

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0a273f;
/* rgb */ color: rgb(10, 39, 63);
/* oklch */ color: oklch(26.5% 0.057 247.2);

Tailwind

colors: {
  custom: {
    50: '#526074',
    500: '#0a273f',
    950: '#000000',
  },
}

SCSS

$custom: #0a273f;
$custom-light: #526074;
$custom-dark: #000000;

JSON

{
  "hex": "#0a273f",
  "rgb": {
    "r": 10,
    "g": 39,
    "b": 63
  },
  "hsl": {
    "h": 207.17,
    "s": 72.603,
    "l": 14.314
  },
  "oklch": {
    "l": 0.26485,
    "c": 0.05654,
    "h": 247.2
  },
  "luminance": 0.01874
}

Semantic roles & 50–950 ramp

primary

#0A273F

secondary

#7C4E29

accent

#8B38EF

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#020508

muted

#78797B

Preview Lab

Preview with #0A273F

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

Preview Lab → · Contrast checker → · Palette generator →