#37A3D2#37A3D2

#37A3D2 is a light, moderate cyan. Relative luminance 0.317; OKLCH L 67.5% C 0.118 H 231.3°. Best body text is #000000 at 7.33:1 contrast (WCAG AA passes).

Color values

HEX	#37A3D2
RGB	rgb(55, 163, 210)
HSL	hsl(198, 63%, 52%)
HSV	hsv(198, 74%, 82%)
CMYK	cmyk(73.8%, 22.4%, 0%, 17.6%)
CIE-LAB	lab(63.06, -14.95, -32.68)
CIE-LCH	lch(63.06, 35.94, 245.43°)
OKLab	oklab(67.5% -0.0736 -0.0919)
OKLCH	oklch(67.5% 0.118 231.3)
XYZ	xyz(26.3009, 31.6567, 65.6845)
Luminance	0.3166 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A3D2 #D26637

analogous

#37D2B4 #37A3D2 #3755D2

triadic

#37A3D2 #D237A3 #A3D237

tetradic

#37A3D2 #B437D2 #D26637 #55D237

square

#37A3D2 #B437D2 #D26637 #55D237

split-complementary

#37A3D2 #D23755 #D2B437

monochromatic

#1A5974 #257FA6 #37A3D2 #69BADD #9BD1E8

Accessibility & contrast

On white

2.86

#37A3D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.33

#37A3D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A3D2

7.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A3D2	#FFFFFF	#000000	##000000
##37A3D2	1.00	2.86	7.33	7.33
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.33	21.00	1.00	1.00
##000000	7.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA1D4

Deuteranopia (green-blind)

#7692D1

Tritanopia (blue-blind)

#00B0B3

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #37a3d2;
/* rgb */ color: rgb(55, 163, 210);
/* oklch */ color: oklch(67.5% 0.118 231.3);

Tailwind

colors: {
  custom: {
    50: '#83bee0',
    500: '#37a3d2',
    950: '#000000',
  },
}

SCSS

$custom: #37a3d2;
$custom-light: #83bee0;
$custom-dark: #000000;

JSON

{
  "hex": "#37a3d2",
  "rgb": {
    "r": 55,
    "g": 163,
    "b": 210
  },
  "hsl": {
    "h": 198.194,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.67503,
    "c": 0.11776,
    "h": 231.3
  },
  "luminance": 0.3166
}

Semantic roles & 50–950 ramp

primary

#37A3D2

secondary

#D4A590

accent

#7341E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A3D2

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

Preview Lab → · Contrast checker → · Palette generator →