#37B7D4#37B7D4

#37B7D4 is a light, moderate cyan. Relative luminance 0.394; OKLCH L 72.3% C 0.115 H 216.6°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#37B7D4
RGB	rgb(55, 183, 212)
HSL	hsl(191, 65%, 52%)
HSV	hsv(191, 74%, 83%)
CMYK	cmyk(74.1%, 13.7%, 0%, 16.9%)
CIE-LAB	lab(69.06, -24.75, -24.53)
CIE-LCH	lch(69.06, 34.85, 224.75°)
OKLab	oklab(72.34% -0.0922 -0.0685)
OKLCH	oklch(72.34% 0.115 216.6)
XYZ	xyz(30.3877, 39.4290, 68.2836)
Luminance	0.3943 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B7D4 #D45437

analogous

#37D4A3 #37B7D4 #3768D4

triadic

#37B7D4 #D437B7 #B7D437

tetradic

#37B7D4 #A337D4 #D45437 #68D437

square

#37B7D4 #A337D4 #D45437 #68D437

split-complementary

#37B7D4 #D43768 #D4A337

monochromatic

#1A6677 #2491A9 #37B7D4 #69C9DF #9CDBEA

Accessibility & contrast

On white

2.36

#37B7D4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#37B7D4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B7D4

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B7D4	#FFFFFF	#000000	##000000
##37B7D4	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B1D6

Deuteranopia (green-blind)

#8EA2D4

Tritanopia (blue-blind)

#00C1C0

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #37b7d4;
/* rgb */ color: rgb(55, 183, 212);
/* oklch */ color: oklch(72.3% 0.115 216.6);

Tailwind

colors: {
  custom: {
    50: '#84cde1',
    500: '#37b7d4',
    950: '#000000',
  },
}

SCSS

$custom: #37b7d4;
$custom-light: #84cde1;
$custom-dark: #000000;

JSON

{
  "hex": "#37b7d4",
  "rgb": {
    "r": 55,
    "g": 183,
    "b": 212
  },
  "hsl": {
    "h": 191.083,
    "s": 64.609,
    "l": 52.353
  },
  "oklch": {
    "l": 0.7234,
    "c": 0.11483,
    "h": 216.6
  },
  "luminance": 0.39433
}

Semantic roles & 50–950 ramp

primary

#37B7D4

secondary

#D69E91

accent

#5F40E8

background

#F8FCFD

surface

#F0F9FB

border

#CBD2D4

text

#0D1315

muted

#7D8283

Preview Lab

Preview with #37B7D4

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

Preview Lab → · Contrast checker → · Palette generator →