#0F3F5F#0F3F5F

#0F3F5F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.075 H 242.9°. Best body text is #FFFFFF at 11.07:1 contrast (WCAG AA passes).

Color values

HEX	#0F3F5F
RGB	rgb(15, 63, 95)
HSL	hsl(204, 73%, 22%)
HSV	hsv(204, 84%, 37%)
CMYK	cmyk(84.2%, 33.7%, 0%, 62.7%)
CIE-LAB	lab(25.21, -3.13, -23.43)
CIE-LCH	lch(25.21, 23.64, 262.40°)
OKLab	oklab(35.34% -0.034 -0.0665)
OKLCH	oklch(35.34% 0.075 242.9)
XYZ	xyz(4.0393, 4.4823, 11.4765)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F3F5F #5F2F0F

analogous

#0F5F57 #0F3F5F #0F175F

triadic

#0F3F5F #5F0F3F #3F5F0F

tetradic

#0F3F5F #570F5F #5F2F0F #175F0F

square

#0F3F5F #570F5F #5F2F0F #175F0F

split-complementary

#0F3F5F #5F0F17 #5F570F

monochromatic

#04121A #071C2A #0F3F5F #176294 #2085C9

Accessibility & contrast

On white

11.07

#0F3F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#0F3F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F3F5F

11.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F3F5F	#FFFFFF	#000000	##FFFFFF
##0F3F5F	1.00	11.07	1.90	11.07
#FFFFFF	11.07	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#304060

Deuteranopia (green-blind)

#25385E

Tritanopia (blue-blind)

#00474A

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #0f3f5f;
/* rgb */ color: rgb(15, 63, 95);
/* oklch */ color: oklch(35.3% 0.075 242.9);

Tailwind

colors: {
  custom: {
    50: '#5c738c',
    500: '#0f3f5f',
    950: '#000000',
  },
}

SCSS

$custom: #0f3f5f;
$custom-light: #5c738c;
$custom-dark: #000000;

JSON

{
  "hex": "#0f3f5f",
  "rgb": {
    "r": 15,
    "g": 63,
    "b": 95
  },
  "hsl": {
    "h": 204,
    "s": 72.727,
    "l": 21.569
  },
  "oklch": {
    "l": 0.3534,
    "c": 0.07465,
    "h": 242.9
  },
  "luminance": 0.04483
}

Semantic roles & 50–950 ramp

primary

#0F3F5F

secondary

#985B32

accent

#8238EF

background

#F5F7F8

surface

#E9EDF0

border

#C5C8CB

text

#05080C

muted

#797B7D

Preview Lab

Preview with #0F3F5F

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

Preview Lab → · Contrast checker → · Palette generator →