#37B3DA#37B3DA

#37B3DA is a light, moderate cyan. Relative luminance 0.381; OKLCH L 71.6% C 0.119 H 223.6°. Best body text is #000000 at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#37B3DA
RGB	rgb(55, 179, 218)
HSL	hsl(194, 69%, 54%)
HSV	hsv(194, 75%, 85%)
CMYK	cmyk(74.8%, 17.9%, 0%, 14.5%)
CIE-LAB	lab(68.10, -20.78, -29.30)
CIE-LCH	lch(68.10, 35.92, 234.66°)
OKLab	oklab(71.64% -0.086 -0.0821)
OKLCH	oklch(71.64% 0.119 223.6)
XYZ	xyz(30.3453, 38.1108, 72.0729)
Luminance	0.3811 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B3DA #DA5E37

analogous

#37DAAF #37B3DA #3761DA

triadic

#37B3DA #DA37B3 #B3DA37

tetradic

#37B3DA #AF37DA #DA5E37 #61DA37

square

#37B3DA #AF37DA #DA5E37 #61DA37

split-complementary

#37B3DA #DA3761 #DAAF37

monochromatic

#18667F #2190B3 #37B3DA #6BC7E4 #9EDAED

Accessibility & contrast

On white

2.44

#37B3DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.62

#37B3DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B3DA

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B3DA	#FFFFFF	#000000	##000000
##37B3DA	1.00	2.44	8.62	8.62
#FFFFFF	2.44	1.00	21.00	21.00
#000000	8.62	21.00	1.00	1.00
##000000	8.62	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DAFDC

Deuteranopia (green-blind)

#879FDA

Tritanopia (blue-blind)

#00BFC0

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #37b3da;
/* rgb */ color: rgb(55, 179, 218);
/* oklch */ color: oklch(71.6% 0.119 223.6);

Tailwind

colors: {
  custom: {
    50: '#85cae5',
    500: '#37b3da',
    950: '#000000',
  },
}

SCSS

$custom: #37b3da;
$custom-light: #85cae5;
$custom-dark: #000000;

JSON

{
  "hex": "#37b3da",
  "rgb": {
    "r": 55,
    "g": 179,
    "b": 218
  },
  "hsl": {
    "h": 194.356,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.71644,
    "c": 0.1189,
    "h": 223.6
  },
  "luminance": 0.38114
}

Semantic roles & 50–950 ramp

primary

#37B3DA

secondary

#D9A493

accent

#663CEC

background

#F8FCFE

surface

#F0F8FC

border

#CBD1D5

text

#0D1315

muted

#7D8284

Preview Lab

Preview with #37B3DA

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

Preview Lab → · Contrast checker → · Palette generator →