#0F4A57#0F4A57

#0F4A57 is a dark, moderate cyan. Relative luminance 0.057; OKLCH L 37.9% C 0.061 H 216.4°. Best body text is #FFFFFF at 9.83:1 contrast (WCAG AA passes).

Color values

HEX	#0F4A57
RGB	rgb(15, 74, 87)
HSL	hsl(191, 71%, 20%)
HSV	hsv(191, 83%, 34%)
CMYK	cmyk(82.8%, 14.9%, 0%, 65.9%)
CIE-LAB	lab(28.61, -13.22, -12.97)
CIE-LCH	lch(28.61, 18.52, 224.46°)
OKLab	oklab(37.93% -0.0492 -0.0362)
OKLCH	oklch(37.93% 0.061 216.4)
XYZ	xyz(4.3653, 5.6867, 9.8825)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#0F4A57 #571C0F

analogous

#0F5740 #0F4A57 #0F2657

triadic

#0F4A57 #570F4A #4A570F

tetradic

#0F4A57 #400F57 #571C0F #26570F

square

#0F4A57 #400F57 #571C0F #26570F

split-complementary

#0F4A57 #570F26 #57400F

monochromatic

#05161A #061E23 #0F4A57 #18768B #21A3BF

Accessibility & contrast

On white

9.83

#0F4A57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#0F4A57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #0F4A57

9.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##0F4A57	#FFFFFF	#000000	##FFFFFF
##0F4A57	1.00	9.83	2.14	9.83
#FFFFFF	9.83	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414758

Deuteranopia (green-blind)

#384057

Tritanopia (blue-blind)

#004F4E

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #0f4a57;
/* rgb */ color: rgb(15, 74, 87);
/* oklch */ color: oklch(37.9% 0.061 216.4);

Tailwind

colors: {
  custom: {
    50: '#5b7c86',
    500: '#0f4a57',
    950: '#000000',
  },
}

SCSS

$custom: #0f4a57;
$custom-light: #5b7c86;
$custom-dark: #000000;

JSON

{
  "hex": "#0f4a57",
  "rgb": {
    "r": 15,
    "g": 74,
    "b": 87
  },
  "hsl": {
    "h": 190.833,
    "s": 70.588,
    "l": 20
  },
  "oklch": {
    "l": 0.37927,
    "c": 0.06109,
    "h": 216.4
  },
  "luminance": 0.05687
}

Semantic roles & 50–950 ramp

primary

#0F4A57

secondary

#914231

accent

#5B3AED

background

#F5F7F8

surface

#E9EEEF

border

#C5C9CA

text

#04090B

muted

#797B7C

Preview Lab

Preview with #0F4A57

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

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