#37A3BE#37A3BE

#37A3BE is a light, moderate cyan. Relative luminance 0.307; OKLCH L 66.6% C 0.103 H 218.0°. Best body text is #000000 at 7.14:1 contrast (WCAG AA passes).

Color values

HEX	#37A3BE
RGB	rgb(55, 163, 190)
HSL	hsl(192, 55%, 48%)
HSV	hsv(192, 71%, 75%)
CMYK	cmyk(71.1%, 14.2%, 0%, 25.5%)
CIE-LAB	lab(62.27, -21.51, -22.74)
CIE-LCH	lch(62.27, 31.30, 226.59°)
OKLab	oklab(66.61% -0.0811 -0.0634)
OKLCH	oklch(66.61% 0.103 218)
XYZ	xyz(23.9631, 30.7216, 53.3721)
Luminance	0.3072 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3BE #BE5237

analogous

#37BE95 #37A3BE #375FBE

triadic

#37A3BE #BE37A3 #A3BE37

tetradic

#37A3BE #9537BE #BE5237 #5FBE37

square

#37A3BE #9537BE #BE5237 #5FBE37

split-complementary

#37A3BE #BE375F #BE9537

monochromatic

#1C525F #297A8F #37A3BE #61BBD1 #90CFDF

Accessibility & contrast

On white

2.94

#37A3BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.14

#37A3BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3BE

7.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3BE	#FFFFFF	#000000	##000000
##37A3BE	1.00	2.94	7.14	7.14
#FFFFFF	2.94	1.00	21.00	21.00
#000000	7.14	21.00	1.00	1.00
##000000	7.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#929EBF

Deuteranopia (green-blind)

#7F91BE

Tritanopia (blue-blind)

#00ACAB

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a3be;
/* rgb */ color: rgb(55, 163, 190);
/* oklch */ color: oklch(66.6% 0.103 218.0);

Tailwind

colors: {
  custom: {
    50: '#80bed1',
    500: '#37a3be',
    950: '#000000',
  },
}

SCSS

$custom: #37a3be;
$custom-light: #80bed1;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3be",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 190
  },
  "hsl": {
    "h": 192,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.66614,
    "c": 0.10297,
    "h": 218
  },
  "luminance": 0.30724
}

Semantic roles & 50–950 ramp

primary

#37A3BE

secondary

#CA9487

accent

#6749DE

background

#F8FBFC

surface

#F0F6F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #37A3BE

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

Preview Lab → · Contrast checker → · Palette generator →