#37575F#37575F

#37575F is a dark, muted cyan. Relative luminance 0.085; OKLCH L 43.5% C 0.040 H 215.2°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#37575F
RGB	rgb(55, 87, 95)
HSL	hsl(192, 27%, 29%)
HSV	hsv(192, 42%, 37%)
CMYK	cmyk(42.1%, 8.4%, 0%, 62.7%)
CIE-LAB	lab(34.91, -9.38, -8.34)
CIE-LCH	lch(34.91, 12.55, 221.62°)
OKLab	oklab(43.53% -0.0324 -0.0229)
OKLCH	oklch(43.53% 0.04 215.2)
XYZ	xyz(7.0486, 8.4544, 12.0847)
Luminance	0.0846 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37575F #5F3F37

analogous

#375F53 #37575F #37435F

triadic

#37575F #5F3757 #575F37

tetradic

#37575F #53375F #5F3F37 #435F37

square

#37575F #53375F #5F3F37 #435F37

split-complementary

#37575F #5F3743 #5F5337

monochromatic

#0B1213 #213438 #37575F #4D7A86 #699BA8

Accessibility & contrast

On white

7.80

#37575F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#37575F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37575F

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37575F	#FFFFFF	#000000	##FFFFFF
##37575F	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51555F

Deuteranopia (green-blind)

#4B505F

Tritanopia (blue-blind)

#275A59

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #37575f;
/* rgb */ color: rgb(55, 87, 95);
/* oklch */ color: oklch(43.5% 0.040 215.2);

Tailwind

colors: {
  custom: {
    50: '#70868c',
    500: '#37575f',
    950: '#000000',
  },
}

SCSS

$custom: #37575f;
$custom-light: #70868c;
$custom-dark: #000000;

JSON

{
  "hex": "#37575f",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 95
  },
  "hsl": {
    "h": 192,
    "s": 26.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.43525,
    "c": 0.03969,
    "h": 215.2
  },
  "luminance": 0.08455
}

Semantic roles & 50–950 ramp

primary

#37575F

secondary

#8F6B62

accent

#7865C3

background

#F6F8F8

surface

#ECEFF0

border

#C7CACB

text

#070B0C

muted

#7A7C7D

Preview Lab

Preview with #37575F

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

Preview Lab → · Contrast checker → · Palette generator →