#37B0DA#37B0DA

#37B0DA is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.9% C 0.120 H 225.9°. Best body text is #000000 at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#37B0DA
RGB	rgb(55, 176, 218)
HSL	hsl(195, 69%, 54%)
HSV	hsv(195, 75%, 85%)
CMYK	cmyk(74.8%, 19.3%, 0%, 14.5%)
CIE-LAB	lab(67.22, -19.21, -30.66)
CIE-LCH	lch(67.22, 36.18, 237.93°)
OKLab	oklab(70.94% -0.0832 -0.086)
OKLCH	oklch(70.94% 0.12 225.9)
XYZ	xyz(29.7506, 36.9213, 71.8746)
Luminance	0.3693 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B0DA #DA6137

analogous

#37DAB2 #37B0DA #375EDA

triadic

#37B0DA #DA37B0 #B0DA37

tetradic

#37B0DA #B237DA #DA6137 #5EDA37

square

#37B0DA #B237DA #DA6137 #5EDA37

split-complementary

#37B0DA #DA375E #DAB237

monochromatic

#18647F #218DB3 #37B0DA #6BC4E4 #9ED9ED

Accessibility & contrast

On white

2.50

#37B0DA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.39

#37B0DA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B0DA

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B0DA	#FFFFFF	#000000	##000000
##37B0DA	1.00	2.50	8.39	8.39
#FFFFFF	2.50	1.00	21.00	21.00
#000000	8.39	21.00	1.00	1.00
##000000	8.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99ADDC

Deuteranopia (green-blind)

#839DD9

Tritanopia (blue-blind)

#00BCBE

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #37b0da;
/* rgb */ color: rgb(55, 176, 218);
/* oklch */ color: oklch(70.9% 0.120 225.9);

Tailwind

colors: {
  custom: {
    50: '#85c7e5',
    500: '#37b0da',
    950: '#000000',
  },
}

SCSS

$custom: #37b0da;
$custom-light: #85c7e5;
$custom-dark: #000000;

JSON

{
  "hex": "#37b0da",
  "rgb": {
    "r": 55,
    "g": 176,
    "b": 218
  },
  "hsl": {
    "h": 195.46,
    "s": 68.776,
    "l": 53.529
  },
  "oklch": {
    "l": 0.70936,
    "c": 0.11964,
    "h": 225.9
  },
  "luminance": 0.36925
}

Semantic roles & 50–950 ramp

primary

#37B0DA

secondary

#D9A593

accent

#693CEC

background

#F8FCFE

surface

#F0F8FC

border

#CBD1D5

text

#0D1315

muted

#7D8284

Preview Lab

Preview with #37B0DA

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

Preview Lab → · Contrast checker → · Palette generator →