#0A252B#0A252B

#0A252B is a very dark, muted cyan. Relative luminance 0.016; OKLCH L 24.7% C 0.034 H 214.8°. Best body text is #FFFFFF at 16.00:1 contrast (WCAG AA passes).

Color values

HEX	#0A252B
RGB	rgb(10, 37, 43)
HSL	hsl(191, 62%, 10%)
HSV	hsv(191, 77%, 17%)
CMYK	cmyk(76.7%, 14%, 0%, 83.1%)
CIE-LAB	lab(13.00, -7.83, -7.02)
CIE-LCH	lch(13.00, 10.52, 221.85°)
OKLab	oklab(24.69% -0.0281 -0.0195)
OKLCH	oklch(24.69% 0.034 214.8)
XYZ	xyz(1.2226, 1.5620, 2.5221)
Luminance	0.0156 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0A252B #2B100A

analogous

#0A2B20 #0A252B #0A142B

triadic

#0A252B #2B0A25 #252B0A

tetradic

#0A252B #200A2B #2B100A #142B0A

square

#0A252B #200A2B #2B100A #142B0A

split-complementary

#0A252B #2B0A14 #2B200A

monochromatic

#061519 #061519 #0A252B #16505D #217A8E

Accessibility & contrast

On white

16.00

#0A252B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#0A252B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0A252B

16.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0A252B	#FFFFFF	#000000	##FFFFFF
##0A252B	1.00	16.00	1.31	16.00
#FFFFFF	16.00	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#21242B

Deuteranopia (green-blind)

#1C202B

Tritanopia (blue-blind)

#002727

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #0a252b;
/* rgb */ color: rgb(10, 37, 43);
/* oklch */ color: oklch(24.7% 0.034 214.8);

Tailwind

colors: {
  custom: {
    50: '#4e5f64',
    500: '#0a252b',
    950: '#000000',
  },
}

SCSS

$custom: #0a252b;
$custom-light: #4e5f64;
$custom-dark: #000000;

JSON

{
  "hex": "#0a252b",
  "rgb": {
    "r": 10,
    "g": 37,
    "b": 43
  },
  "hsl": {
    "h": 190.909,
    "s": 62.264,
    "l": 10.392
  },
  "oklch": {
    "l": 0.24689,
    "c": 0.03416,
    "h": 214.8
  },
  "luminance": 0.01562
}

Semantic roles & 50–950 ramp

primary

#0A252B

secondary

#683429

accent

#6042E5

background

#F4F5F5

surface

#E7E9EA

border

#C3C5C6

text

#020405

muted

#787979

Preview Lab

Preview with #0A252B

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

Preview Lab → · Contrast checker → · Palette generator →