#37575B#37575B

#37575B is a dark, muted teal. Relative luminance 0.084; OKLCH L 43.4% C 0.038 H 205.8°. Best body text is #FFFFFF at 7.85:1 contrast (WCAG AA passes).

Color values

HEX	#37575B
RGB	rgb(55, 87, 91)
HSL	hsl(187, 25%, 29%)
HSV	hsv(187, 40%, 36%)
CMYK	cmyk(39.6%, 4.4%, 0%, 64.3%)
CIE-LAB	lab(34.77, -10.54, -6.04)
CIE-LCH	lch(34.77, 12.15, 209.82°)
OKLab	oklab(43.36% -0.0342 -0.0166)
OKLCH	oklch(43.36% 0.038 205.8)
XYZ	xyz(6.8714, 8.3835, 11.1516)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	teal

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37575B #5B3B37

analogous

#375B4D #37575B #37455B

triadic

#37575B #5B3757 #575B37

tetradic

#37575B #4D375B #5B3B37 #455B37

square

#37575B #4D375B #5B3B37 #455B37

split-complementary

#37575B #5B3745 #5B4D37

monochromatic

#0C1213 #203335 #37575B #4E7B81 #689DA4

Accessibility & contrast

On white

7.85

#37575B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#37575B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #37575B

7.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37575B	#FFFFFF	#000000	##FFFFFF
##37575B	1.00	7.85	2.68	7.85
#FFFFFF	7.85	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52545B

Deuteranopia (green-blind)

#4C505B

Tritanopia (blue-blind)

#295A58

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #37575b;
/* rgb */ color: rgb(55, 87, 91);
/* oklch */ color: oklch(43.4% 0.038 205.8);

Tailwind

colors: {
  custom: {
    50: '#708689',
    500: '#37575b',
    950: '#000000',
  },
}

SCSS

$custom: #37575b;
$custom-light: #708689;
$custom-dark: #000000;

JSON

{
  "hex": "#37575b",
  "rgb": {
    "r": 55,
    "g": 87,
    "b": 91
  },
  "hsl": {
    "h": 186.667,
    "s": 24.658,
    "l": 28.627
  },
  "oklch": {
    "l": 0.43364,
    "c": 0.03803,
    "h": 205.8
  },
  "luminance": 0.08384
}

Semantic roles & 50–950 ramp

primary

#37575B

secondary

#8B6762

accent

#7167C1

background

#F6F8F8

surface

#ECEFF0

border

#C7CACB

text

#070B0B

muted

#7A7C7C

Preview Lab

Preview with #37575B

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

Preview Lab → · Contrast checker → · Palette generator →