#37ADD2#37ADD2

#37ADD2 is a light, moderate cyan. Relative luminance 0.354; OKLCH L 69.9% C 0.115 H 223.4°. Best body text is #000000 at 8.07:1 contrast (WCAG AA passes).

Color values

HEX	#37ADD2
RGB	rgb(55, 173, 210)
HSL	hsl(194, 63%, 52%)
HSV	hsv(194, 74%, 82%)
CMYK	cmyk(73.8%, 17.6%, 0%, 17.6%)
CIE-LAB	lab(66.02, -20.26, -28.10)
CIE-LCH	lch(66.02, 34.64, 234.21°)
OKLab	oklab(69.87% -0.0833 -0.0787)
OKLCH	oklch(69.87% 0.115 223.4)
XYZ	xyz(28.1472, 35.3492, 66.2999)
Luminance	0.3535 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37ADD2 #D25C37

analogous

#37D2AA #37ADD2 #375FD2

triadic

#37ADD2 #D237AD #ADD237

tetradic

#37ADD2 #AA37D2 #D25C37 #5FD237

square

#37ADD2 #AA37D2 #D25C37 #5FD237

split-complementary

#37ADD2 #D2375F #D2AA37

monochromatic

#1A5F74 #2588A6 #37ADD2 #69C1DD #9BD6E8

Accessibility & contrast

On white

2.60

#37ADD2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.07

#37ADD2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37ADD2

8.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37ADD2	#FFFFFF	#000000	##000000
##37ADD2	1.00	2.60	8.07	8.07
#FFFFFF	2.60	1.00	21.00	21.00
#000000	8.07	21.00	1.00	1.00
##000000	8.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#98A9D4

Deuteranopia (green-blind)

#839AD2

Tritanopia (blue-blind)

#00B8B9

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #37add2;
/* rgb */ color: rgb(55, 173, 210);
/* oklch */ color: oklch(69.9% 0.115 223.4);

Tailwind

colors: {
  custom: {
    50: '#83c5e0',
    500: '#37add2',
    950: '#000000',
  },
}

SCSS

$custom: #37add2;
$custom-light: #83c5e0;
$custom-dark: #000000;

JSON

{
  "hex": "#37add2",
  "rgb": {
    "r": 55,
    "g": 173,
    "b": 210
  },
  "hsl": {
    "h": 194.323,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.69872,
    "c": 0.11457,
    "h": 223.4
  },
  "luminance": 0.35353
}

Semantic roles & 50–950 ramp

primary

#37ADD2

secondary

#D4A190

accent

#6941E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37ADD2

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

Preview Lab → · Contrast checker → · Palette generator →