#37B3D1#37B3D1

#37B3D1 is a light, moderate cyan. Relative luminance 0.377; OKLCH L 71.3% C 0.113 H 217.8°. Best body text is #000000 at 8.53:1 contrast (WCAG AA passes).

Color values

HEX	#37B3D1
RGB	rgb(55, 179, 209)
HSL	hsl(192, 63%, 52%)
HSV	hsv(192, 74%, 82%)
CMYK	cmyk(73.7%, 14.4%, 0%, 18%)
CIE-LAB	lab(67.76, -23.67, -24.87)
CIE-LCH	lch(67.76, 34.34, 226.42°)
OKLab	oklab(71.26% -0.0895 -0.0694)
OKLCH	oklch(71.26% 0.113 217.8)
XYZ	xyz(29.1994, 37.6524, 66.0380)
Luminance	0.3766 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B3D1 #D15537

analogous

#37D1A2 #37B3D1 #3766D1

triadic

#37B3D1 #D137B3 #B3D137

tetradic

#37B3D1 #A237D1 #D15537 #66D137

square

#37B3D1 #A237D1 #D15537 #66D137

split-complementary

#37B3D1 #D13766 #D1A237

monochromatic

#1A6273 #268CA5 #37B3D1 #69C6DC #9BD9E8

Accessibility & contrast

On white

2.46

#37B3D1 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.53

#37B3D1 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B3D1

8.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B3D1	#FFFFFF	#000000	##000000
##37B3D1	1.00	2.46	8.53	8.53
#FFFFFF	2.46	1.00	21.00	21.00
#000000	8.53	21.00	1.00	1.00
##000000	8.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A0AED3

Deuteranopia (green-blind)

#8B9ED1

Tritanopia (blue-blind)

#00BDBC

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #37b3d1;
/* rgb */ color: rgb(55, 179, 209);
/* oklch */ color: oklch(71.3% 0.113 217.8);

Tailwind

colors: {
  custom: {
    50: '#84cadf',
    500: '#37b3d1',
    950: '#000000',
  },
}

SCSS

$custom: #37b3d1;
$custom-light: #84cadf;
$custom-dark: #000000;

JSON

{
  "hex": "#37b3d1",
  "rgb": {
    "r": 55,
    "g": 179,
    "b": 209
  },
  "hsl": {
    "h": 191.688,
    "s": 62.602,
    "l": 51.765
  },
  "oklch": {
    "l": 0.7126,
    "c": 0.11326,
    "h": 217.8
  },
  "luminance": 0.37656
}

Semantic roles & 50–950 ramp

primary

#37B3D1

secondary

#D49D90

accent

#6242E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B3D1

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

Preview Lab → · Contrast checker → · Palette generator →