#37A9CF#37A9CF

#37A9CF is a light, moderate cyan. Relative luminance 0.337; OKLCH L 68.8% C 0.113 H 224.7°. Best body text is #000000 at 7.74:1 contrast (WCAG AA passes).

Color values

HEX	#37A9CF
RGB	rgb(55, 169, 207)
HSL	hsl(195, 61%, 51%)
HSV	hsv(195, 73%, 81%)
CMYK	cmyk(73.4%, 18.4%, 0%, 18.8%)
CIE-LAB	lab(64.72, -19.14, -28.45)
CIE-LCH	lch(64.72, 34.29, 236.07°)
OKLab	oklab(68.79% -0.0805 -0.0797)
OKLCH	oklch(68.79% 0.113 224.7)
XYZ	xyz(27.0214, 33.6900, 64.0981)
Luminance	0.3369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A9CF #CF5D37

analogous

#37CFA9 #37A9CF #375DCF

triadic

#37A9CF #CF37A9 #A9CF37

tetradic

#37A9CF #A937CF #CF5D37 #5DCF37

square

#37A9CF #A937CF #CF5D37 #5DCF37

split-complementary

#37A9CF #CF375D #CFA937

monochromatic

#1B5B71 #2783A2 #37A9CF #68BEDB #9AD3E7

Accessibility & contrast

On white

2.71

#37A9CF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.74

#37A9CF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A9CF

7.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A9CF	#FFFFFF	#000000	##000000
##37A9CF	1.00	2.71	7.74	7.74
#FFFFFF	2.71	1.00	21.00	21.00
#000000	7.74	21.00	1.00	1.00
##000000	7.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#94A5D1

Deuteranopia (green-blind)

#7F96CF

Tritanopia (blue-blind)

#00B4B5

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #37a9cf;
/* rgb */ color: rgb(55, 169, 207);
/* oklch */ color: oklch(68.8% 0.113 224.7);

Tailwind

colors: {
  custom: {
    50: '#83c2dd',
    500: '#37a9cf',
    950: '#000000',
  },
}

SCSS

$custom: #37a9cf;
$custom-light: #83c2dd;
$custom-dark: #000000;

JSON

{
  "hex": "#37a9cf",
  "rgb": {
    "r": 55,
    "g": 169,
    "b": 207
  },
  "hsl": {
    "h": 195,
    "s": 61.29,
    "l": 51.373
  },
  "oklch": {
    "l": 0.68789,
    "c": 0.11329,
    "h": 224.7
  },
  "luminance": 0.33693
}

Semantic roles & 50–950 ramp

primary

#37A9CF

secondary

#D2A08F

accent

#6C43E4

background

#F8FBFD

surface

#F0F7FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A9CF

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

Preview Lab → · Contrast checker → · Palette generator →