#0F315B#0F315B

#0F315B is a dark, moderate cyan. Relative luminance 0.031; OKLCH L 31.4% C 0.085 H 255.6°. Best body text is #FFFFFF at 13.04:1 contrast (WCAG AA passes).

Color values

HEX	#0F315B
RGB	rgb(15, 49, 91)
HSL	hsl(213, 72%, 21%)
HSV	hsv(213, 84%, 36%)
CMYK	cmyk(83.5%, 46.2%, 0%, 64.3%)
CIE-LAB	lab(20.26, 4.89, -28.67)
CIE-LCH	lch(20.26, 29.08, 279.68°)
OKLab	oklab(31.38% -0.021 -0.0821)
OKLCH	oklch(31.38% 0.085 255.6)
XYZ	xyz(3.1829, 3.0531, 10.3171)
Luminance	0.0305 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F315B #5B390F

analogous

#0F575B #0F315B #130F5B

triadic

#0F315B #5B0F31 #315B0F

tetradic

#0F315B #5B0F57 #5B390F #0F5B13

square

#0F315B #5B0F57 #5B390F #0F5B13

split-complementary

#0F315B #5B130F #575B0F

monochromatic

#040E1A #061526 #0F315B #184D90 #206AC4

Accessibility & contrast

On white

13.04

#0F315B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#0F315B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F315B

13.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F315B	#FFFFFF	#000000	##FFFFFF
##0F315B	1.00	13.04	1.61	13.04
#FFFFFF	13.04	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C355D

Deuteranopia (green-blind)

#0E2E5A

Tritanopia (blue-blind)

#003B41

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #0f315b;
/* rgb */ color: rgb(15, 49, 91);
/* oklch */ color: oklch(31.4% 0.085 255.6);

Tailwind

colors: {
  custom: {
    50: '#5b688a',
    500: '#0f315b',
    950: '#000000',
  },
}

SCSS

$custom: #0f315b;
$custom-light: #5b688a;
$custom-dark: #000000;

JSON

{
  "hex": "#0f315b",
  "rgb": {
    "r": 15,
    "g": 49,
    "b": 91
  },
  "hsl": {
    "h": 213.158,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31379,
    "c": 0.08473,
    "h": 255.6
  },
  "luminance": 0.03054
}

Semantic roles & 50–950 ramp

primary

#0F315B

secondary

#956831

accent

#9D39EE

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#04060B

muted

#797A7C

Preview Lab

Preview with #0F315B

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

Preview Lab → · Contrast checker → · Palette generator →