#0F3740#0F3740

#0F3740 is a dark, muted cyan. Relative luminance 0.032; OKLCH L 31.4% C 0.046 H 215.6°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#0F3740
RGB	rgb(15, 55, 64)
HSL	hsl(191, 62%, 15%)
HSV	hsv(191, 77%, 25%)
CMYK	cmyk(76.6%, 14.1%, 0%, 74.9%)
CIE-LAB	lab(20.84, -10.34, -9.67)
CIE-LCH	lch(20.84, 14.16, 223.09°)
OKLab	oklab(31.35% -0.0377 -0.0269)
OKLCH	oklch(31.35% 0.046 215.6)
XYZ	xyz(2.4882, 3.2038, 5.3368)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3740 #40180F

analogous

#0F4030 #0F3740 #0F1E40

triadic

#0F3740 #400F37 #37400F

tetradic

#0F3740 #300F40 #40180F #1E400F

square

#0F3740 #300F40 #40180F #1E400F

split-complementary

#0F3740 #400F1E #40300F

monochromatic

#061519 #061519 #0F3740 #1B6272 #268CA3

Accessibility & contrast

On white

12.80

#0F3740 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#0F3740 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3740

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3740	#FFFFFF	#000000	##FFFFFF
##0F3740	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313541

Deuteranopia (green-blind)

#2A3040

Tritanopia (blue-blind)

#003A3A

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #0f3740;
/* rgb */ color: rgb(15, 55, 64);
/* oklch */ color: oklch(31.4% 0.046 215.6);

Tailwind

colors: {
  custom: {
    50: '#556e74',
    500: '#0f3740',
    950: '#000000',
  },
}

SCSS

$custom: #0f3740;
$custom-light: #556e74;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3740",
  "rgb": {
    "r": 15,
    "g": 55,
    "b": 64
  },
  "hsl": {
    "h": 191.02,
    "s": 62.025,
    "l": 15.49
  },
  "oklch": {
    "l": 0.31351,
    "c": 0.04628,
    "h": 215.6
  },
  "luminance": 0.03204
}

Semantic roles & 50–950 ramp

primary

#0F3740

secondary

#7A3E30

accent

#6143E5

background

#F5F6F7

surface

#E9EBED

border

#C5C6C8

text

#030708

muted

#787A7B

Preview Lab

Preview with #0F3740

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

Preview Lab → · Contrast checker → · Palette generator →