#0B253F#0B253F

#0B253F is a dark, muted cyan. Relative luminance 0.018; OKLCH L 26.0% C 0.058 H 251.1°. Best body text is #FFFFFF at 15.55:1 contrast (WCAG AA passes).

Color values

HEX	#0B253F
RGB	rgb(11, 37, 63)
HSL	hsl(210, 70%, 15%)
HSV	hsv(210, 83%, 25%)
CMYK	cmyk(82.5%, 41.3%, 0%, 75.3%)
CIE-LAB	lab(14.13, 0.78, -19.43)
CIE-LCH	lch(14.13, 19.44, 272.30°)
OKLab	oklab(25.96% -0.0189 -0.0553)
OKLCH	oklch(25.96% 0.058 251.1)
XYZ	xyz(1.6964, 1.7530, 4.9506)
Luminance	0.0175 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0B253F #3F250B

analogous

#0B3F3F #0B253F #0B0B3F

triadic

#0B253F #3F0B25 #253F0B

tetradic

#0B253F #3F0B3F #3F250B #0B3F0B

square

#0B253F #3F0B3F #3F250B #0B3F0B

split-complementary

#0B253F #3F0B0B #3F3F0B

monochromatic

#050F1A #050F1A #0B253F #144473 #1D62A7

Accessibility & contrast

On white

15.55

#0B253F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#0B253F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0B253F

15.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0B253F	#FFFFFF	#000000	##FFFFFF
##0B253F	1.00	15.55	1.35	15.55
#FFFFFF	15.55	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#192740

Deuteranopia (green-blind)

#11223E

Tritanopia (blue-blind)

#002B2F

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #0b253f;
/* rgb */ color: rgb(11, 37, 63);
/* oklch */ color: oklch(26.0% 0.058 251.1);

Tailwind

colors: {
  custom: {
    50: '#525f74',
    500: '#0b253f',
    950: '#000000',
  },
}

SCSS

$custom: #0b253f;
$custom-light: #525f74;
$custom-dark: #000000;

JSON

{
  "hex": "#0b253f",
  "rgb": {
    "r": 11,
    "g": 37,
    "b": 63
  },
  "hsl": {
    "h": 210,
    "s": 70.27,
    "l": 14.51
  },
  "oklch": {
    "l": 0.25962,
    "c": 0.05841,
    "h": 251.1
  },
  "luminance": 0.01753
}

Semantic roles & 50–950 ramp

primary

#0B253F

secondary

#7C532A

accent

#943BED

background

#F4F5F7

surface

#E7E9ED

border

#C3C5C8

text

#030408

muted

#78797B

Preview Lab

Preview with #0B253F

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

Preview Lab → · Contrast checker → · Palette generator →