#37BDDA#37BDDA

#37BDDA is a light, moderate cyan. Relative luminance 0.423; OKLCH L 74.0% C 0.118 H 215.9°. Best body text is #000000 at 9.45:1 contrast (WCAG AA passes).

Color values

HEX	#37BDDA
RGB	rgb(55, 189, 218)
HSL	hsl(191, 69%, 54%)
HSV	hsv(191, 75%, 85%)
CMYK	cmyk(74.8%, 13.3%, 0%, 14.5%)
CIE-LAB	lab(71.05, -25.87, -24.77)
CIE-LCH	lch(71.05, 35.81, 223.75°)
OKLab	oklab(74.02% -0.0956 -0.0691)
OKLCH	oklch(74.02% 0.118 215.9)
XYZ	xyz(32.4227, 42.2655, 72.7653)
Luminance	0.4227 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37BDDA #DA5437

analogous

#37DAA5 #37BDDA #376BDA

triadic

#37BDDA #DA37BD #BDDA37

tetradic

#37BDDA #A537DA #DA5437 #6BDA37

square

#37BDDA #A537DA #DA5437 #6BDA37

split-complementary

#37BDDA #DA376B #DAA537

monochromatic

#186D7F #2199B3 #37BDDA #6BCEE4 #9EDFED

Accessibility & contrast

On white

2.22

#37BDDA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.45

#37BDDA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37BDDA

9.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37BDDA	#FFFFFF	#000000	##000000
##37BDDA	1.00	2.22	9.45	9.45
#FFFFFF	2.22	1.00	21.00	21.00
#000000	9.45	21.00	1.00	1.00
##000000	9.45	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9B7DC

Deuteranopia (green-blind)

#93A7DA

Tritanopia (blue-blind)

#00C7C6

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #37bdda;
/* rgb */ color: rgb(55, 189, 218);
/* oklch */ color: oklch(74.0% 0.118 215.9);

Tailwind

colors: {
  custom: {
    50: '#86d1e5',
    500: '#37bdda',
    950: '#000000',
  },
}

SCSS

$custom: #37bdda;
$custom-light: #86d1e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37bdda",
  "rgb": {
    "r": 55,
    "g": 189,
    "b": 218
  },
  "hsl": {
    "h": 190.675,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.74016,
    "c": 0.11796,
    "h": 215.9
  },
  "luminance": 0.42269
}

Semantic roles & 50–950 ramp

primary

#37BDDA

secondary

#D9A093

accent

#5B3CEC

background

#F9FCFE

surface

#F1F9FC

border

#CBD2D5

text

#0D1415

muted

#7E8284

Preview Lab

Preview with #37BDDA

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

Preview Lab → · Contrast checker → · Palette generator →