#37A8CF#37A8CF

#37A8CF is a light, moderate cyan. Relative luminance 0.333; OKLCH L 68.6% C 0.114 H 225.5°. Best body text is #000000 at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#37A8CF
RGB	rgb(55, 168, 207)
HSL	hsl(195, 61%, 51%)
HSV	hsv(195, 73%, 81%)
CMYK	cmyk(73.4%, 18.8%, 0%, 18.8%)
CIE-LAB	lab(64.42, -18.61, -28.91)
CIE-LCH	lch(64.42, 34.39, 237.23°)
OKLab	oklab(68.55% -0.0795 -0.081)
OKLCH	oklch(68.55% 0.114 225.5)
XYZ	xyz(26.8360, 33.3193, 64.0363)
Luminance	0.3332 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A8CF #CF5E37

analogous

#37CFAA #37A8CF #375CCF

triadic

#37A8CF #CF37A8 #A8CF37

tetradic

#37A8CF #AA37CF #CF5E37 #5CCF37

square

#37A8CF #AA37CF #CF5E37 #5CCF37

split-complementary

#37A8CF #CF375C #CFAA37

monochromatic

#1B5B71 #2782A2 #37A8CF #68BDDB #9AD3E7

Accessibility & contrast

On white

2.74

#37A8CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.66

#37A8CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A8CF

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A8CF	#FFFFFF	#000000	##000000
##37A8CF	1.00	2.74	7.66	7.66
#FFFFFF	2.74	1.00	21.00	21.00
#000000	7.66	21.00	1.00	1.00
##000000	7.66	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#93A5D1

Deuteranopia (green-blind)

#7E96CF

Tritanopia (blue-blind)

#00B3B5

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #37a8cf;
/* rgb */ color: rgb(55, 168, 207);
/* oklch */ color: oklch(68.6% 0.114 225.5);

Tailwind

colors: {
  custom: {
    50: '#83c2dd',
    500: '#37a8cf',
    950: '#000000',
  },
}

SCSS

$custom: #37a8cf;
$custom-light: #83c2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#37a8cf",
  "rgb": {
    "r": 55,
    "g": 168,
    "b": 207
  },
  "hsl": {
    "h": 195.395,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.68551,
    "c": 0.11354,
    "h": 225.5
  },
  "luminance": 0.33322
}

Semantic roles & 50–950 ramp

primary

#37A8CF

secondary

#D2A18F

accent

#6D43E4

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A8CF

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

Preview Lab → · Contrast checker → · Palette generator →