#37B7DA#37B7DA

#37B7DA is a light, moderate cyan. Relative luminance 0.397; OKLCH L 72.6% C 0.118 H 220.5°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#37B7DA
RGB	rgb(55, 183, 218)
HSL	hsl(193, 69%, 54%)
HSV	hsv(193, 75%, 85%)
CMYK	cmyk(74.8%, 16.1%, 0%, 14.5%)
CIE-LAB	lab(69.28, -22.84, -27.48)
CIE-LCH	lch(69.28, 35.73, 230.28°)
OKLab	oklab(72.59% -0.0899 -0.0769)
OKLCH	oklch(72.59% 0.118 220.5)
XYZ	xyz(31.1586, 39.7374, 72.3440)
Luminance	0.3974 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B7DA #DA5A37

analogous

#37DAAB #37B7DA #3766DA

triadic

#37B7DA #DA37B7 #B7DA37

tetradic

#37B7DA #AB37DA #DA5A37 #66DA37

square

#37B7DA #AB37DA #DA5A37 #66DA37

split-complementary

#37B7DA #DA3766 #DAAB37

monochromatic

#18697F #2193B3 #37B7DA #6BCAE4 #9EDCED

Accessibility & contrast

On white

2.35

#37B7DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#37B7DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B7DA

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B7DA	#FFFFFF	#000000	##000000
##37B7DA	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A2B2DC

Deuteranopia (green-blind)

#8CA2DA

Tritanopia (blue-blind)

#00C2C2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #37b7da;
/* rgb */ color: rgb(55, 183, 218);
/* oklch */ color: oklch(72.6% 0.118 220.5);

Tailwind

colors: {
  custom: {
    50: '#85cce5',
    500: '#37b7da',
    950: '#000000',
  },
}

SCSS

$custom: #37b7da;
$custom-light: #85cce5;
$custom-dark: #000000;

JSON

{
  "hex": "#37b7da",
  "rgb": {
    "r": 55,
    "g": 183,
    "b": 218
  },
  "hsl": {
    "h": 192.883,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.72591,
    "c": 0.11825,
    "h": 220.5
  },
  "luminance": 0.39741
}

Semantic roles & 50–950 ramp

primary

#37B7DA

secondary

#D9A293

accent

#623CEC

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1315

muted

#7E8284

Preview Lab

Preview with #37B7DA

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

Preview Lab → · Contrast checker → · Palette generator →