#0F255E#0F255E

#0F255E is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.106 H 264.6°. Best body text is #FFFFFF at 14.52:1 contrast (WCAG AA passes).

Color values

HEX	#0F255E
RGB	rgb(15, 37, 94)
HSL	hsl(223, 72%, 21%)
HSV	hsv(223, 84%, 37%)
CMYK	cmyk(84%, 60.6%, 0%, 63.1%)
CIE-LAB	lab(16.66, 15.06, -36.45)
CIE-LCH	lch(16.66, 39.44, 292.44°)
OKLab	oklab(28.71% -0.01 -0.1052)
OKLCH	oklch(28.71% 0.106 264.6)
XYZ	xyz(2.8782, 2.2325, 10.8667)
Luminance	0.0223 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F255E #5E480F

analogous

#0F4D5E #0F255E #210F5E

triadic

#0F255E #5E0F25 #255E0F

tetradic

#0F255E #5E0F4D #5E480F #0F5E21

square

#0F255E #5E0F4D #5E480F #0F5E21

split-complementary

#0F255E #5E210F #4D5E0F

monochromatic

#040A1A #071029 #0F255E #173A93 #204FC8

Accessibility & contrast

On white

14.52

#0F255E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#0F255E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F255E

14.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F255E	#FFFFFF	#000000	##FFFFFF
##0F255E	1.00	14.52	1.45	14.52
#FFFFFF	14.52	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D60

Deuteranopia (green-blind)

#00265D

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #0f255e;
/* rgb */ color: rgb(15, 37, 94);
/* oklch */ color: oklch(28.7% 0.106 264.6);

Tailwind

colors: {
  custom: {
    50: '#5c5f8c',
    500: '#0f255e',
    950: '#000000',
  },
}

SCSS

$custom: #0f255e;
$custom-light: #5c5f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#0f255e",
  "rgb": {
    "r": 15,
    "g": 37,
    "b": 94
  },
  "hsl": {
    "h": 223.291,
    "s": 72.477,
    "l": 21.373
  },
  "oklch": {
    "l": 0.28705,
    "c": 0.10572,
    "h": 264.6
  },
  "luminance": 0.02233
}

Semantic roles & 50–950 ramp

primary

#0F255E

secondary

#977B31

accent

#BC39EF

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #0F255E

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

Preview Lab → · Contrast checker → · Palette generator →