#0F255C#0F255C

#0F255C is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.5% C 0.103 H 264.3°. Best body text is #FFFFFF at 14.59:1 contrast (WCAG AA passes).

Color values

HEX	#0F255C
RGB	rgb(15, 37, 92)
HSL	hsl(223, 72%, 21%)
HSV	hsv(223, 84%, 36%)
CMYK	cmyk(83.7%, 59.8%, 0%, 63.9%)
CIE-LAB	lab(16.49, 14.19, -35.41)
CIE-LCH	lch(16.49, 38.15, 291.84°)
OKLab	oklab(28.52% -0.0102 -0.1022)
OKLCH	oklch(28.52% 0.103 264.3)
XYZ	xyz(2.7897, 2.1971, 10.4002)
Luminance	0.0220 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F255C #5C460F

analogous

#0F4B5C #0F255C #1F0F5C

triadic

#0F255C #5C0F25 #255C0F

tetradic

#0F255C #5C0F4B #5C460F #0F5C1F

square

#0F255C #5C0F4B #5C460F #0F5C1F

split-complementary

#0F255C #5C1F0F #4B5C0F

monochromatic

#040B1A #061027 #0F255C #183A91 #204FC5

Accessibility & contrast

On white

14.59

#0F255C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#0F255C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F255C

14.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F255C	#FFFFFF	#000000	##FFFFFF
##0F255C	1.00	14.59	1.44	14.59
#FFFFFF	14.59	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00255B

Tritanopia (blue-blind)

#00333C

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #0f255c;
/* rgb */ color: rgb(15, 37, 92);
/* oklch */ color: oklch(28.5% 0.103 264.3);

Tailwind

colors: {
  custom: {
    50: '#5c5f8b',
    500: '#0f255c',
    950: '#000000',
  },
}

SCSS

$custom: #0f255c;
$custom-light: #5c5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#0f255c",
  "rgb": {
    "r": 15,
    "g": 37,
    "b": 92
  },
  "hsl": {
    "h": 222.857,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.28519,
    "c": 0.10266,
    "h": 264.3
  },
  "luminance": 0.02197
}

Semantic roles & 50–950 ramp

primary

#0F255C

secondary

#957931

accent

#BB39EF

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #0F255C

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

Preview Lab → · Contrast checker → · Palette generator →