#37A5BE#37A5BE

#37A5BE is a light, moderate cyan. Relative luminance 0.314; OKLCH L 67.1% C 0.103 H 216.2°. Best body text is #000000 at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#37A5BE
RGB	rgb(55, 165, 190)
HSL	hsl(191, 55%, 48%)
HSV	hsv(191, 71%, 75%)
CMYK	cmyk(71.1%, 13.2%, 0%, 25.5%)
CIE-LAB	lab(62.88, -22.55, -21.82)
CIE-LCH	lch(62.88, 31.38, 224.06°)
OKLab	oklab(67.1% -0.0831 -0.0608)
OKLCH	oklch(67.1% 0.103 216.2)
XYZ	xyz(24.3210, 31.4374, 53.4914)
Luminance	0.3144 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A5BE #BE5037

analogous

#37BE93 #37A5BE #3761BE

triadic

#37A5BE #BE37A5 #A5BE37

tetradic

#37A5BE #9337BE #BE5037 #61BE37

square

#37A5BE #9337BE #BE5037 #61BE37

split-complementary

#37A5BE #BE3761 #BE9337

monochromatic

#1C535F #297C8F #37A5BE #61BCD1 #90D0DF

Accessibility & contrast

On white

2.88

#37A5BE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.29

#37A5BE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A5BE

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A5BE	#FFFFFF	#000000	##000000
##37A5BE	1.00	2.88	7.29	7.29
#FFFFFF	2.88	1.00	21.00	21.00
#000000	7.29	21.00	1.00	1.00
##000000	7.29	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A0BF

Deuteranopia (green-blind)

#8192BE

Tritanopia (blue-blind)

#00AEAD

Achromatopsia (no color)

#989898

Design tokens & code

CSS

--color: #37a5be;
/* rgb */ color: rgb(55, 165, 190);
/* oklch */ color: oklch(67.1% 0.103 216.2);

Tailwind

colors: {
  custom: {
    50: '#80c0d1',
    500: '#37a5be',
    950: '#000000',
  },
}

SCSS

$custom: #37a5be;
$custom-light: #80c0d1;
$custom-dark: #000000;

JSON

{
  "hex": "#37a5be",
  "rgb": {
    "r": 55,
    "g": 165,
    "b": 190
  },
  "hsl": {
    "h": 191.111,
    "s": 55.102,
    "l": 48.039
  },
  "oklch": {
    "l": 0.67099,
    "c": 0.103,
    "h": 216.2
  },
  "luminance": 0.3144
}

Semantic roles & 50–950 ramp

primary

#37A5BE

secondary

#CA9387

accent

#6549DE

background

#F8FBFC

surface

#F0F7F9

border

#CBD0D2

text

#0C1214

muted

#7D8182

Preview Lab

Preview with #37A5BE

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

Preview Lab → · Contrast checker → · Palette generator →