#0A2837#0A2837

#0A2837 is a dark, muted cyan. Relative luminance 0.019; OKLCH L 26.3% C 0.045 H 234.0°. Best body text is #FFFFFF at 15.31:1 contrast (WCAG AA passes).

Color values

HEX	#0A2837
RGB	rgb(10, 40, 55)
HSL	hsl(200, 69%, 13%)
HSV	hsv(200, 82%, 22%)
CMYK	cmyk(81.8%, 27.3%, 0%, 78.4%)
CIE-LAB	lab(14.72, -5.00, -12.90)
CIE-LCH	lch(14.72, 13.83, 248.82°)
OKLab	oklab(26.26% -0.0263 -0.0362)
OKLCH	oklch(26.26% 0.045 234)
XYZ	xyz(1.5733, 1.8578, 3.8894)
Luminance	0.0186 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A2837 #37190A

analogous

#0A372F #0A2837 #0A1137

triadic

#0A2837 #370A28 #28370A

tetradic

#0A2837 #2F0A37 #37190A #11370A

square

#0A2837 #2F0A37 #37190A #11370A

split-complementary

#0A2837 #370A11 #372F0A

monochromatic

#05131A #05131A #0A2837 #134E6B #1D739F

Accessibility & contrast

On white

15.31

#0A2837 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#0A2837 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A2837

15.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A2837	#FFFFFF	#000000	##FFFFFF
##0A2837	1.00	15.31	1.37	15.31
#FFFFFF	15.31	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#212838

Deuteranopia (green-blind)

#1B2337

Tritanopia (blue-blind)

#002C2D

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #0a2837;
/* rgb */ color: rgb(10, 40, 55);
/* oklch */ color: oklch(26.3% 0.045 234.0);

Tailwind

colors: {
  custom: {
    50: '#50616d',
    500: '#0a2837',
    950: '#000000',
  },
}

SCSS

$custom: #0a2837;
$custom-light: #50616d;
$custom-dark: #000000;

JSON

{
  "hex": "#0a2837",
  "rgb": {
    "r": 10,
    "g": 40,
    "b": 55
  },
  "hsl": {
    "h": 200,
    "s": 69.231,
    "l": 12.745
  },
  "oklch": {
    "l": 0.26264,
    "c": 0.04478,
    "h": 234
  },
  "luminance": 0.01858
}

Semantic roles & 50–950 ramp

primary

#0A2837

secondary

#744228

accent

#773CEC

background

#F4F5F6

surface

#E7E9EB

border

#C3C5C6

text

#020507

muted

#78797A

Preview Lab

Preview with #0A2837

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

Preview Lab → · Contrast checker → · Palette generator →