#0F3751#0F3751

#0F3751 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.3% C 0.064 H 241.5°. Best body text is #FFFFFF at 12.46:1 contrast (WCAG AA passes).

Color values

HEX	#0F3751
RGB	rgb(15, 55, 81)
HSL	hsl(204, 69%, 19%)
HSV	hsv(204, 81%, 32%)
CMYK	cmyk(81.5%, 32.1%, 0%, 68.2%)
CIE-LAB	lab(21.68, -3.57, -19.78)
CIE-LCH	lch(21.68, 20.10, 259.77°)
OKLab	oklab(32.3% -0.0304 -0.0559)
OKLCH	oklch(32.3% 0.064 241.5)
XYZ	xyz(3.0478, 3.4277, 8.2840)
Luminance	0.0343 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3751 #51290F

analogous

#0F514A #0F3751 #0F1651

triadic

#0F3751 #510F37 #37510F

tetradic

#0F3751 #4A0F51 #51290F #16510F

square

#0F3751 #4A0F51 #51290F #16510F

split-complementary

#0F3751 #510F16 #514A0F

monochromatic

#05121A #05141D #0F3751 #195A85 #227DB8

Accessibility & contrast

On white

12.46

#0F3751 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#0F3751 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3751

12.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3751	#FFFFFF	#000000	##FFFFFF
##0F3751	1.00	12.46	1.69	12.46
#FFFFFF	12.46	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B3752

Deuteranopia (green-blind)

#223151

Tritanopia (blue-blind)

#003D40

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #0f3751;
/* rgb */ color: rgb(15, 55, 81);
/* oklch */ color: oklch(32.3% 0.064 241.5);

Tailwind

colors: {
  custom: {
    50: '#586d82',
    500: '#0f3751',
    950: '#000000',
  },
}

SCSS

$custom: #0f3751;
$custom-light: #586d82;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3751",
  "rgb": {
    "r": 15,
    "g": 55,
    "b": 81
  },
  "hsl": {
    "h": 203.636,
    "s": 68.75,
    "l": 18.824
  },
  "oklch": {
    "l": 0.32297,
    "c": 0.06366,
    "h": 241.5
  },
  "luminance": 0.03428
}

Semantic roles & 50–950 ramp

primary

#0F3751

secondary

#8B5431

accent

#813CEC

background

#F5F6F7

surface

#E9EBEE

border

#C5C6C9

text

#04070A

muted

#797A7C

Preview Lab

Preview with #0F3751

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

Preview Lab → · Contrast checker → · Palette generator →