#37B8D7#37B8D7

#37B8D7 is a light, moderate cyan. Relative luminance 0.400; OKLCH L 72.7% C 0.116 H 217.8°. Best body text is #000000 at 9.00:1 contrast (WCAG AA passes).

Color values

HEX	#37B8D7
RGB	rgb(55, 184, 215)
HSL	hsl(192, 67%, 53%)
HSV	hsv(192, 74%, 84%)
CMYK	cmyk(74.4%, 14.4%, 0%, 15.7%)
CIE-LAB	lab(69.47, -24.30, -25.56)
CIE-LCH	lch(69.47, 35.27, 226.44°)
OKLab	oklab(72.7% -0.092 -0.0714)
OKLCH	oklch(72.7% 0.116 217.8)
XYZ	xyz(30.9766, 39.9958, 70.3642)
Luminance	0.4000 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37B8D7 #D75637

analogous

#37D7A6 #37B8D7 #3768D7

triadic

#37B8D7 #D737B8 #B8D737

tetradic

#37B8D7 #A637D7 #D75637 #68D737

square

#37B8D7 #A637D7 #D75637 #68D737

split-complementary

#37B8D7 #D73768 #D7A637

monochromatic

#19687B #2393AE #37B8D7 #6ACAE1 #9DDCEB

Accessibility & contrast

On white

2.33

#37B8D7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.00

#37B8D7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37B8D7

9.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37B8D7	#FFFFFF	#000000	##000000
##37B8D7	1.00	2.33	9.00	9.00
#FFFFFF	2.33	1.00	21.00	21.00
#000000	9.00	21.00	1.00	1.00
##000000	9.00	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A4B3D9

Deuteranopia (green-blind)

#8EA3D7

Tritanopia (blue-blind)

#00C3C2

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #37b8d7;
/* rgb */ color: rgb(55, 184, 215);
/* oklch */ color: oklch(72.7% 0.116 217.8);

Tailwind

colors: {
  custom: {
    50: '#85cde3',
    500: '#37b8d7',
    950: '#000000',
  },
}

SCSS

$custom: #37b8d7;
$custom-light: #85cde3;
$custom-dark: #000000;

JSON

{
  "hex": "#37b8d7",
  "rgb": {
    "r": 55,
    "g": 184,
    "b": 215
  },
  "hsl": {
    "h": 191.625,
    "s": 66.667,
    "l": 52.941
  },
  "oklch": {
    "l": 0.72703,
    "c": 0.11642,
    "h": 217.8
  },
  "luminance": 0.4
}

Semantic roles & 50–950 ramp

primary

#37B8D7

secondary

#D7A092

accent

#5F3EEA

background

#F9FCFD

surface

#F1F9FB

border

#CBD2D4

text

#0D1315

muted

#7E8283

Preview Lab

Preview with #37B8D7

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

Preview Lab → · Contrast checker → · Palette generator →