#0F4B59#0F4B59

#0F4B59 is a dark, moderate cyan. Relative luminance 0.059; OKLCH L 38.3% C 0.062 H 217.6°. Best body text is #FFFFFF at 9.67:1 contrast (WCAG AA passes).

Color values

HEX	#0F4B59
RGB	rgb(15, 75, 89)
HSL	hsl(191, 71%, 20%)
HSV	hsv(191, 83%, 35%)
CMYK	cmyk(83.1%, 15.7%, 0%, 65.1%)
CIE-LAB	lab(29.04, -13.06, -13.59)
CIE-LCH	lch(29.04, 18.85, 226.15°)
OKLab	oklab(38.31% -0.0494 -0.038)
OKLCH	oklch(38.31% 0.062 217.6)
XYZ	xyz(4.5155, 5.8544, 10.3413)
Luminance	0.0585 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4B59 #591D0F

analogous

#0F5942 #0F4B59 #0F2659

triadic

#0F4B59 #590F4B #4B590F

tetradic

#0F4B59 #420F59 #591D0F #26590F

square

#0F4B59 #420F59 #591D0F #26590F

split-complementary

#0F4B59 #590F26 #59420F

monochromatic

#04161A #061F25 #0F4B59 #18778D #21A3C2

Accessibility & contrast

On white

9.67

#0F4B59 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#0F4B59 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4B59

9.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4B59	#FFFFFF	#000000	##FFFFFF
##0F4B59	1.00	9.67	2.17	9.67
#FFFFFF	9.67	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#42495A

Deuteranopia (green-blind)

#384159

Tritanopia (blue-blind)

#00504F

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #0f4b59;
/* rgb */ color: rgb(15, 75, 89);
/* oklch */ color: oklch(38.3% 0.062 217.6);

Tailwind

colors: {
  custom: {
    50: '#5c7d88',
    500: '#0f4b59',
    950: '#000000',
  },
}

SCSS

$custom: #0f4b59;
$custom-light: #5c7d88;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4b59",
  "rgb": {
    "r": 15,
    "g": 75,
    "b": 89
  },
  "hsl": {
    "h": 191.351,
    "s": 71.154,
    "l": 20.392
  },
  "oklch": {
    "l": 0.38305,
    "c": 0.0623,
    "h": 217.6
  },
  "luminance": 0.05855
}

Semantic roles & 50–950 ramp

primary

#0F4B59

secondary

#934431

accent

#5C3AEE

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#05090B

muted

#797B7C

Preview Lab

Preview with #0F4B59

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

Preview Lab → · Contrast checker → · Palette generator →