#0F4B5B#0F4B5B

#0F4B5B is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 38.4% C 0.064 H 220.4°. Best body text is #FFFFFF at 9.64:1 contrast (WCAG AA passes).

Color values

HEX	#0F4B5B
RGB	rgb(15, 75, 91)
HSL	hsl(193, 72%, 21%)
HSV	hsv(193, 84%, 36%)
CMYK	cmyk(83.5%, 17.6%, 0%, 64.3%)
CIE-LAB	lab(29.13, -12.30, -14.74)
CIE-LCH	lch(29.13, 19.20, 230.15°)
OKLab	oklab(38.4% -0.0485 -0.0412)
OKLCH	oklch(38.4% 0.064 220.4)
XYZ	xyz(4.6006, 5.8885, 10.7896)
Luminance	0.0589 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4B5B #5B1F0F

analogous

#0F5B45 #0F4B5B #0F255B

triadic

#0F4B5B #5B0F4B #4B5B0F

tetradic

#0F4B5B #450F5B #5B1F0F #255B0F

square

#0F4B5B #450F5B #5B1F0F #255B0F

split-complementary

#0F4B5B #5B0F25 #5B450F

monochromatic

#04161A #062026 #0F4B5B #187690 #20A2C4

Accessibility & contrast

On white

9.64

#0F4B5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#0F4B5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4B5B

9.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4B5B	#FFFFFF	#000000	##FFFFFF
##0F4B5B	1.00	9.64	2.18	9.64
#FFFFFF	9.64	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#41495C

Deuteranopia (green-blind)

#37415B

Tritanopia (blue-blind)

#005050

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #0f4b5b;
/* rgb */ color: rgb(15, 75, 91);
/* oklch */ color: oklch(38.4% 0.064 220.4);

Tailwind

colors: {
  custom: {
    50: '#5c7d89',
    500: '#0f4b5b',
    950: '#000000',
  },
}

SCSS

$custom: #0f4b5b;
$custom-light: #5c7d89;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4b5b",
  "rgb": {
    "r": 15,
    "g": 75,
    "b": 91
  },
  "hsl": {
    "h": 192.632,
    "s": 71.698,
    "l": 20.784
  },
  "oklch": {
    "l": 0.38404,
    "c": 0.06366,
    "h": 220.4
  },
  "luminance": 0.05889
}

Semantic roles & 50–950 ramp

primary

#0F4B5B

secondary

#954631

accent

#5F39EE

background

#F5F7F8

surface

#E9EEF0

border

#C5C9CB

text

#05090B

muted

#797B7C

Preview Lab

Preview with #0F4B5B

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

Preview Lab → · Contrast checker → · Palette generator →