#0F255D#0F255D

#0F255D is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.6% C 0.104 H 264.4°. Best body text is #FFFFFF at 14.55:1 contrast (WCAG AA passes).

Color values

HEX	#0F255D
RGB	rgb(15, 37, 93)
HSL	hsl(223, 72%, 21%)
HSV	hsv(223, 84%, 36%)
CMYK	cmyk(83.9%, 60.2%, 0%, 63.5%)
CIE-LAB	lab(16.58, 14.63, -35.93)
CIE-LCH	lch(16.58, 38.79, 292.15°)
OKLab	oklab(28.61% -0.0101 -0.1037)
OKLCH	oklch(28.61% 0.104 264.4)
XYZ	xyz(2.8337, 2.2147, 10.6319)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F255D #5D470F

analogous

#0F4C5D #0F255D #200F5D

triadic

#0F255D #5D0F25 #255D0F

tetradic

#0F255D #5D0F4C #5D470F #0F5D20

square

#0F255D #5D0F4C #5D470F #0F5D20

split-complementary

#0F255D #5D200F #4C5D0F

monochromatic

#040A1A #061028 #0F255D #173A92 #204FC6

Accessibility & contrast

On white

14.55

#0F255D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#0F255D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F255D

14.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F255D	#FFFFFF	#000000	##FFFFFF
##0F255D	1.00	14.55	1.44	14.55
#FFFFFF	14.55	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5F

Deuteranopia (green-blind)

#00265C

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #0f255d;
/* rgb */ color: rgb(15, 37, 93);
/* oklch */ color: oklch(28.6% 0.104 264.4);

Tailwind

colors: {
  custom: {
    50: '#5c5f8b',
    500: '#0f255d',
    950: '#000000',
  },
}

SCSS

$custom: #0f255d;
$custom-light: #5c5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#0f255d",
  "rgb": {
    "r": 15,
    "g": 37,
    "b": 93
  },
  "hsl": {
    "h": 223.077,
    "s": 72.222,
    "l": 21.176
  },
  "oklch": {
    "l": 0.28612,
    "c": 0.10419,
    "h": 264.4
  },
  "luminance": 0.02215
}

Semantic roles & 50–950 ramp

primary

#0F255D

secondary

#967A31

accent

#BC39EF

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #0F255D

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

Preview Lab → · Contrast checker → · Palette generator →