#0F255A#0F255A

#0F255A is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.3% C 0.100 H 264.0°. Best body text is #FFFFFF at 14.66:1 contrast (WCAG AA passes).

Color values

HEX	#0F255A
RGB	rgb(15, 37, 90)
HSL	hsl(222, 71%, 21%)
HSV	hsv(222, 83%, 35%)
CMYK	cmyk(83.3%, 58.9%, 0%, 64.7%)
CIE-LAB	lab(16.32, 13.32, -34.35)
CIE-LCH	lch(16.32, 36.84, 291.20°)
OKLab	oklab(28.34% -0.0103 -0.099)
OKLCH	oklch(28.34% 0.1 264)
XYZ	xyz(2.7034, 2.1626, 9.9458)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F255A #5A440F

analogous

#0F4A5A #0F255A #1E0F5A

triadic

#0F255A #5A0F25 #255A0F

tetradic

#0F255A #5A0F4A #5A440F #0F5A1E

square

#0F255A #5A0F4A #5A440F #0F5A1E

split-complementary

#0F255A #5A1E0F #4A5A0F

monochromatic

#040B1A #060F26 #0F255A #183B8E #2050C3

Accessibility & contrast

On white

14.66

#0F255A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#0F255A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F255A

14.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F255A	#FFFFFF	#000000	##FFFFFF
##0F255A	1.00	14.66	1.43	14.66
#FFFFFF	14.66	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5C

Deuteranopia (green-blind)

#002559

Tritanopia (blue-blind)

#00323B

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #0f255a;
/* rgb */ color: rgb(15, 37, 90);
/* oklch */ color: oklch(28.3% 0.100 264.0);

Tailwind

colors: {
  custom: {
    50: '#5b5f89',
    500: '#0f255a',
    950: '#000000',
  },
}

SCSS

$custom: #0f255a;
$custom-light: #5b5f89;
$custom-dark: #000000;

JSON

{
  "hex": "#0f255a",
  "rgb": {
    "r": 15,
    "g": 37,
    "b": 90
  },
  "hsl": {
    "h": 222.4,
    "s": 71.429,
    "l": 20.588
  },
  "oklch": {
    "l": 0.28336,
    "c": 0.09959,
    "h": 264
  },
  "luminance": 0.02163
}

Semantic roles & 50–950 ramp

primary

#0F255A

secondary

#947731

accent

#B93AEE

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04040B

muted

#79797C

Preview Lab

Preview with #0F255A

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

Preview Lab → · Contrast checker → · Palette generator →