#37B4D0#37B4D0

#37B4D0 is a light, moderate cyan. Relative luminance 0.380; OKLCH L 71.5% C 0.113 H 216.3°. Best body text is #000000 at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#37B4D0
RGB	rgb(55, 180, 208)
HSL	hsl(191, 62%, 52%)
HSV	hsv(191, 74%, 82%)
CMYK	cmyk(73.6%, 13.5%, 0%, 18.4%)
CIE-LAB	lab(68.02, -24.50, -23.92)
CIE-LCH	lch(68.02, 34.24, 224.32°)
OKLab	oklab(71.46% -0.0908 -0.0667)
OKLCH	oklch(71.46% 0.113 216.3)
XYZ	xyz(29.2772, 38.0053, 65.4550)
Luminance	0.3801 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B4D0 #D05337

analogous

#37D09F #37B4D0 #3768D0

triadic

#37B4D0 #D037B4 #B4D037

tetradic

#37B4D0 #9F37D0 #D05337 #68D037

square

#37B4D0 #9F37D0 #D05337 #68D037

split-complementary

#37B4D0 #D03768 #D09F37

monochromatic

#1B6272 #268DA3 #37B4D0 #69C7DC #9AD9E7

Accessibility & contrast

On white

2.44

#37B4D0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.60

#37B4D0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B4D0

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B4D0	#FFFFFF	#000000	##000000
##37B4D0	1.00	2.44	8.60	8.60
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.60	21.00	1.00	1.00
##000000	8.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1AED2

Deuteranopia (green-blind)

#8C9FD0

Tritanopia (blue-blind)

#00BEBD

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #37b4d0;
/* rgb */ color: rgb(55, 180, 208);
/* oklch */ color: oklch(71.5% 0.113 216.3);

Tailwind

colors: {
  custom: {
    50: '#84cade',
    500: '#37b4d0',
    950: '#000000',
  },
}

SCSS

$custom: #37b4d0;
$custom-light: #84cade;
$custom-dark: #000000;

JSON

{
  "hex": "#37b4d0",
  "rgb": {
    "r": 55,
    "g": 180,
    "b": 208
  },
  "hsl": {
    "h": 190.98,
    "s": 61.943,
    "l": 51.569
  },
  "oklch": {
    "l": 0.71458,
    "c": 0.11272,
    "h": 216.3
  },
  "luminance": 0.38009
}

Semantic roles & 50–950 ramp

primary

#37B4D0

secondary

#D39C90

accent

#6043E5

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B4D0

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

Preview Lab → · Contrast checker → · Palette generator →