#0B253B#0B253B

#0B253B is a dark, muted cyan. Relative luminance 0.017; OKLCH L 25.7% C 0.052 H 247.2°. Best body text is #FFFFFF at 15.65:1 contrast (WCAG AA passes).

Color values

HEX	#0B253B
RGB	rgb(11, 37, 59)
HSL	hsl(208, 69%, 14%)
HSV	hsv(208, 81%, 23%)
CMYK	cmyk(81.4%, 37.3%, 0%, 76.9%)
CIE-LAB	lab(13.88, -0.97, -17.02)
CIE-LCH	lch(13.88, 17.05, 266.73°)
OKLab	oklab(25.69% -0.0203 -0.0482)
OKLCH	oklch(25.69% 0.052 247.2)
XYZ	xyz(1.5887, 1.7099, 4.3831)
Luminance	0.0171 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B253B #3B210B

analogous

#0B3B39 #0B253B #0B0D3B

triadic

#0B253B #3B0B25 #253B0B

tetradic

#0B253B #390B3B #3B210B #0D3B0B

square

#0B253B #390B3B #3B210B #0D3B0B

split-complementary

#0B253B #3B0B0D #3B390B

monochromatic

#05101A #05101A #0B253B #15456F #1E66A2

Accessibility & contrast

On white

15.65

#0B253B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.34

#0B253B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B253B

15.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B253B	#FFFFFF	#000000	##FFFFFF
##0B253B	1.00	15.65	1.34	15.65
#FFFFFF	15.65	1.00	21.00	1.00
#000000	1.34	21.00	1.00	21.00
##FFFFFF	15.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B263C

Deuteranopia (green-blind)

#14213B

Tritanopia (blue-blind)

#002A2D

Achromatopsia (no color)

#232323

Design tokens & code

CSS

--color: #0b253b;
/* rgb */ color: rgb(11, 37, 59);
/* oklch */ color: oklch(25.7% 0.052 247.2);

Tailwind

colors: {
  custom: {
    50: '#515f71',
    500: '#0b253b',
    950: '#000000',
  },
}

SCSS

$custom: #0b253b;
$custom-light: #515f71;
$custom-dark: #000000;

JSON

{
  "hex": "#0b253b",
  "rgb": {
    "r": 11,
    "g": 37,
    "b": 59
  },
  "hsl": {
    "h": 207.5,
    "s": 68.571,
    "l": 13.725
  },
  "oklch": {
    "l": 0.25685,
    "c": 0.0523,
    "h": 247.2
  },
  "luminance": 0.0171
}

Semantic roles & 50–950 ramp

primary

#0B253B

secondary

#784E2A

accent

#8D3CEB

background

#F4F5F6

surface

#E7E9EC

border

#C3C5C7

text

#020407

muted

#78797A

Preview Lab

Preview with #0B253B

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

Preview Lab → · Contrast checker → · Palette generator →