#37B1D2#37B1D2

#37B1D2 is a light, moderate cyan. Relative luminance 0.369; OKLCH L 70.8% C 0.114 H 220.1°. Best body text is #000000 at 8.38:1 contrast (WCAG AA passes).

Color values

HEX	#37B1D2
RGB	rgb(55, 177, 210)
HSL	hsl(193, 63%, 52%)
HSV	hsv(193, 74%, 82%)
CMYK	cmyk(73.8%, 15.7%, 0%, 17.6%)
CIE-LAB	lab(67.21, -22.33, -26.28)
CIE-LCH	lch(67.21, 34.48, 229.64°)
OKLab	oklab(70.83% -0.0871 -0.0734)
OKLCH	oklch(70.83% 0.114 220.1)
XYZ	xyz(28.9257, 36.9062, 66.5594)
Luminance	0.3691 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B1D2 #D25837

analogous

#37D2A5 #37B1D2 #3764D2

triadic

#37B1D2 #D237B1 #B1D237

tetradic

#37B1D2 #A537D2 #D25837 #64D237

square

#37B1D2 #A537D2 #D25837 #64D237

split-complementary

#37B1D2 #D23764 #D2A537

monochromatic

#1A6174 #258BA6 #37B1D2 #69C4DD #9BD8E8

Accessibility & contrast

On white

2.51

#37B1D2 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.38

#37B1D2 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B1D2

8.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B1D2	#FFFFFF	#000000	##000000
##37B1D2	1.00	2.51	8.38	8.38
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.38	21.00	1.00	1.00
##000000	8.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9DACD4

Deuteranopia (green-blind)

#889DD2

Tritanopia (blue-blind)

#00BCBC

Achromatopsia (no color)

#A4A4A4

Design tokens & code

CSS

--color: #37b1d2;
/* rgb */ color: rgb(55, 177, 210);
/* oklch */ color: oklch(70.8% 0.114 220.1);

Tailwind

colors: {
  custom: {
    50: '#84c8e0',
    500: '#37b1d2',
    950: '#000000',
  },
}

SCSS

$custom: #37b1d2;
$custom-light: #84c8e0;
$custom-dark: #000000;

JSON

{
  "hex": "#37b1d2",
  "rgb": {
    "r": 55,
    "g": 177,
    "b": 210
  },
  "hsl": {
    "h": 192.774,
    "s": 63.265,
    "l": 51.961
  },
  "oklch": {
    "l": 0.70825,
    "c": 0.11397,
    "h": 220.1
  },
  "luminance": 0.3691
}

Semantic roles & 50–950 ramp

primary

#37B1D2

secondary

#D49F90

accent

#6541E6

background

#F8FCFD

surface

#F0F8FB

border

#CBD1D4

text

#0C1315

muted

#7D8283

Preview Lab

Preview with #37B1D2

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

Preview Lab → · Contrast checker → · Palette generator →