#0F285C#0F285C

#0F285C is a dark, moderate blue. Relative luminance 0.024; OKLCH L 29.2% C 0.098 H 262.6°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#0F285C
RGB	rgb(15, 40, 92)
HSL	hsl(221, 72%, 21%)
HSV	hsv(221, 84%, 36%)
CMYK	cmyk(83.7%, 56.5%, 0%, 63.9%)
CIE-LAB	lab(17.42, 11.95, -33.90)
CIE-LCH	lch(17.42, 35.94, 289.42°)
OKLab	oklab(29.22% -0.0126 -0.0977)
OKLCH	oklch(29.22% 0.098 262.6)
XYZ	xyz(2.8869, 2.3915, 10.4326)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F285C #5C430F

analogous

#0F4E5C #0F285C #1C0F5C

triadic

#0F285C #5C0F28 #285C0F

tetradic

#0F285C #5C0F4E #5C430F #0F5C1C

square

#0F285C #5C0F4E #5C430F #0F5C1C

split-complementary

#0F285C #5C1C0F #4E5C0F

monochromatic

#040B1A #061127 #0F285C #183F91 #2056C5

Accessibility & contrast

On white

14.20

#0F285C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#0F285C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F285C

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F285C	#FFFFFF	#000000	##FFFFFF
##0F285C	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#042E5E

Deuteranopia (green-blind)

#00275B

Tritanopia (blue-blind)

#00353D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #0f285c;
/* rgb */ color: rgb(15, 40, 92);
/* oklch */ color: oklch(29.2% 0.098 262.6);

Tailwind

colors: {
  custom: {
    50: '#5b618b',
    500: '#0f285c',
    950: '#000000',
  },
}

SCSS

$custom: #0f285c;
$custom-light: #5b618b;
$custom-dark: #000000;

JSON

{
  "hex": "#0f285c",
  "rgb": {
    "r": 15,
    "g": 40,
    "b": 92
  },
  "hsl": {
    "h": 220.519,
    "s": 71.963,
    "l": 20.98
  },
  "oklch": {
    "l": 0.29224,
    "c": 0.09847,
    "h": 262.6
  },
  "luminance": 0.02392
}

Semantic roles & 50–950 ramp

primary

#0F285C

secondary

#957531

accent

#B439EF

background

#F5F5F8

surface

#E9E9F0

border

#C5C5CB

text

#04050C

muted

#79797D

Preview Lab

Preview with #0F285C

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

Preview Lab → · Contrast checker → · Palette generator →