#0A2543#0A2543

#0A2543 is a dark, moderate cyan. Relative luminance 0.018; OKLCH L 26.2% C 0.065 H 253.5°. Best body text is #FFFFFF at 15.46:1 contrast (WCAG AA passes).

Color values

HEX	#0A2543
RGB	rgb(10, 37, 67)
HSL	hsl(212, 74%, 15%)
HSV	hsv(212, 85%, 26%)
CMYK	cmyk(85.1%, 44.8%, 0%, 73.7%)
CIE-LAB	lab(14.36, 2.40, -21.86)
CIE-LCH	lch(14.36, 21.99, 276.27°)
OKLab	oklab(26.21% -0.0184 -0.0624)
OKLCH	oklch(26.21% 0.065 253.5)
XYZ	xyz(1.7995, 1.7927, 5.5603)
Luminance	0.0179 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2543 #43280A

analogous

#0A4143 #0A2543 #0C0A43

triadic

#0A2543 #430A25 #25430A

tetradic

#0A2543 #430A41 #43280A #0A430C

square

#0A2543 #430A41 #43280A #0A430C

split-complementary

#0A2543 #430C0A #41430A

monochromatic

#040F1B #040F1B #0A2543 #124278 #1A60AE

Accessibility & contrast

On white

15.46

#0A2543 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.36

#0A2543 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2543

15.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2543	#FFFFFF	#000000	##FFFFFF
##0A2543	1.00	15.46	1.36	15.46
#FFFFFF	15.46	1.00	21.00	1.00
#000000	1.36	21.00	1.00	21.00
##FFFFFF	15.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#172744

Deuteranopia (green-blind)

#0E2242

Tritanopia (blue-blind)

#002C30

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #0a2543;
/* rgb */ color: rgb(10, 37, 67);
/* oklch */ color: oklch(26.2% 0.065 253.5);

Tailwind

colors: {
  custom: {
    50: '#535f77',
    500: '#0a2543',
    950: '#000000',
  },
}

SCSS

$custom: #0a2543;
$custom-light: #535f77;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2543",
  "rgb": {
    "r": 10,
    "g": 37,
    "b": 67
  },
  "hsl": {
    "h": 211.579,
    "s": 74.026,
    "l": 15.098
  },
  "oklch": {
    "l": 0.26214,
    "c": 0.06506,
    "h": 253.5
  },
  "luminance": 0.01793
}

Semantic roles & 50–950 ramp

primary

#0A2543

secondary

#805729

accent

#9937F1

background

#F5F5F7

surface

#E8E9ED

border

#C4C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #0A2543

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

Preview Lab → · Contrast checker → · Palette generator →