#0A273B#0A273B

#0A273B is a dark, muted cyan. Relative luminance 0.018; OKLCH L 26.2% C 0.051 H 242.5°. Best body text is #FFFFFF at 15.37:1 contrast (WCAG AA passes).

Color values

HEX	#0A273B
RGB	rgb(10, 39, 59)
HSL	hsl(204, 71%, 14%)
HSV	hsv(204, 83%, 23%)
CMYK	cmyk(83.1%, 33.9%, 0%, 76.9%)
CIE-LAB	lab(14.58, -2.59, -15.94)
CIE-LCH	lch(14.58, 16.15, 260.76°)
OKLab	oklab(26.22% -0.0234 -0.0451)
OKLCH	oklch(26.22% 0.051 242.5)
XYZ	xyz(1.6398, 1.8312, 4.4038)
Luminance	0.0183 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A273B #3B1E0A

analogous

#0A3B36 #0A273B #0A0E3B

triadic

#0A273B #3B0A27 #273B0A

tetradic

#0A273B #360A3B #3B1E0A #0E3B0A

square

#0A273B #360A3B #3B1E0A #0E3B0A

split-complementary

#0A273B #3B0A0E #3B360A

monochromatic

#04111A #04111A #0A273B #134A6F #1C6CA4

Accessibility & contrast

On white

15.37

#0A273B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#0A273B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A273B

15.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A273B	#FFFFFF	#000000	##FFFFFF
##0A273B	1.00	15.37	1.37	15.37
#FFFFFF	15.37	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E273C

Deuteranopia (green-blind)

#17233B

Tritanopia (blue-blind)

#002C2E

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0a273b;
/* rgb */ color: rgb(10, 39, 59);
/* oklch */ color: oklch(26.2% 0.051 242.5);

Tailwind

colors: {
  custom: {
    50: '#516071',
    500: '#0a273b',
    950: '#000000',
  },
}

SCSS

$custom: #0a273b;
$custom-light: #516071;
$custom-dark: #000000;

JSON

{
  "hex": "#0a273b",
  "rgb": {
    "r": 10,
    "g": 39,
    "b": 59
  },
  "hsl": {
    "h": 204.49,
    "s": 71.014,
    "l": 13.529
  },
  "oklch": {
    "l": 0.26219,
    "c": 0.05078,
    "h": 242.5
  },
  "luminance": 0.01831
}

Semantic roles & 50–950 ramp

primary

#0A273B

secondary

#784928

accent

#833AEE

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020507

muted

#78797A

Preview Lab

Preview with #0A273B

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

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