#37A1D2#37A1D2

#37A1D2 is a light, moderate cyan. Relative luminance 0.310; OKLCH L 67.0% C 0.119 H 232.8°. Best body text is #000000 at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#37A1D2
RGB	rgb(55, 161, 210)
HSL	hsl(199, 63%, 52%)
HSV	hsv(199, 74%, 82%)
CMYK	cmyk(73.8%, 23.3%, 0%, 17.6%)
CIE-LAB	lab(62.47, -13.86, -33.60)
CIE-LCH	lch(62.47, 36.35, 247.59°)
OKLab	oklab(67.03% -0.0717 -0.0945)
OKLCH	oklch(67.03% 0.119 232.8)
XYZ	xyz(25.9486, 30.9521, 65.5670)
Luminance	0.3095 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37A1D2 #D26837

analogous

#37D2B6 #37A1D2 #3754D2

triadic

#37A1D2 #D237A1 #A1D237

tetradic

#37A1D2 #B637D2 #D26837 #54D237

square

#37A1D2 #B637D2 #D26837 #54D237

split-complementary

#37A1D2 #D23754 #D2B637

monochromatic

#1A5874 #257EA6 #37A1D2 #69B8DD #9BD0E8

Accessibility & contrast

On white

2.92

#37A1D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.19

#37A1D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37A1D2

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37A1D2	#FFFFFF	#000000	##000000
##37A1D2	1.00	2.92	7.19	7.19
#FFFFFF	2.92	1.00	21.00	21.00
#000000	7.19	21.00	1.00	1.00
##000000	7.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#899FD4

Deuteranopia (green-blind)

#7490D1

Tritanopia (blue-blind)

#00AEB2

Achromatopsia (no color)

#979797

Design tokens & code

CSS

--color: #37a1d2;
/* rgb */ color: rgb(55, 161, 210);
/* oklch */ color: oklch(67.0% 0.119 232.8);

Tailwind

colors: {
  custom: {
    50: '#83bce0',
    500: '#37a1d2',
    950: '#000000',
  },
}

SCSS

$custom: #37a1d2;
$custom-light: #83bce0;
$custom-dark: #000000;

JSON

{
  "hex": "#37a1d2",
  "rgb": {
    "r": 55,
    "g": 161,
    "b": 210
  },
  "hsl": {
    "h": 198.968,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.67032,
    "c": 0.11867,
    "h": 232.8
  },
  "luminance": 0.30955
}

Semantic roles & 50–950 ramp

primary

#37A1D2

secondary

#D4A690

accent

#7641E6

background

#F8FBFD

surface

#F0F6FB

border

#CBD0D4

text

#0C1215

muted

#7D8183

Preview Lab

Preview with #37A1D2

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

Preview Lab → · Contrast checker → · Palette generator →