#0F4757#0F4757

#0F4757 is a dark, moderate cyan. Relative luminance 0.053; OKLCH L 37.1% C 0.061 H 221.7°. Best body text is #FFFFFF at 10.20:1 contrast (WCAG AA passes).

Color values

HEX	#0F4757
RGB	rgb(15, 71, 87)
HSL	hsl(193, 71%, 20%)
HSV	hsv(193, 83%, 34%)
CMYK	cmyk(82.8%, 18.4%, 0%, 65.9%)
CIE-LAB	lab(27.56, -11.42, -14.58)
CIE-LCH	lch(27.56, 18.52, 231.93°)
OKLab	oklab(37.09% -0.0458 -0.0408)
OKLCH	oklch(37.09% 0.061 221.7)
XYZ	xyz(4.1698, 5.2956, 9.8174)
Luminance	0.0530 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4757 #571F0F

analogous

#0F5743 #0F4757 #0F2357

triadic

#0F4757 #570F47 #47570F

tetradic

#0F4757 #430F57 #571F0F #23570F

square

#0F4757 #430F57 #571F0F #23570F

split-complementary

#0F4757 #570F23 #57430F

monochromatic

#05151A #061C23 #0F4757 #18728B #219CBF

Accessibility & contrast

On white

10.20

#0F4757 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#0F4757 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4757

10.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4757	#FFFFFF	#000000	##FFFFFF
##0F4757	1.00	10.20	2.06	10.20
#FFFFFF	10.20	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4558

Deuteranopia (green-blind)

#343E57

Tritanopia (blue-blind)

#004C4C

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #0f4757;
/* rgb */ color: rgb(15, 71, 87);
/* oklch */ color: oklch(37.1% 0.061 221.7);

Tailwind

colors: {
  custom: {
    50: '#5b7a86',
    500: '#0f4757',
    950: '#000000',
  },
}

SCSS

$custom: #0f4757;
$custom-light: #5b7a86;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4757",
  "rgb": {
    "r": 15,
    "g": 71,
    "b": 87
  },
  "hsl": {
    "h": 193.333,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.37086,
    "c": 0.06137,
    "h": 221.7
  },
  "luminance": 0.05296
}

Semantic roles & 50–950 ramp

primary

#0F4757

secondary

#914631

accent

#623AED

background

#F5F7F8

surface

#E9EDEF

border

#C5C8CA

text

#04090B

muted

#797B7C

Preview Lab

Preview with #0F4757

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

Preview Lab → · Contrast checker → · Palette generator →