#37C8FF#37C8FF

#37C8FF is a light, vivid cyan. Relative luminance 0.493; OKLCH L 78.2% C 0.140 H 229.0°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#37C8FF
RGB	rgb(55, 200, 255)
HSL	hsl(197, 100%, 61%)
HSV	hsv(197, 78%, 100%)
CMYK	cmyk(78.4%, 21.6%, 0%, 0%)
CIE-LAB	lab(75.66, -19.54, -37.65)
CIE-LCH	lch(75.66, 42.42, 242.57°)
OKLab	oklab(78.18% -0.0921 -0.1059)
OKLCH	oklch(78.18% 0.14 229)
XYZ	xyz(40.2724, 49.3358, 101.9886)
Luminance	0.4934 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37C8FF #FF6E37

analogous

#37FFD2 #37C8FF #3764FF

triadic

#37C8FF #FF37C8 #C8FF37

tetradic

#37C8FF #D237FF #FF6E37 #64FF37

square

#37C8FF #D237FF #FF6E37 #64FF37

split-complementary

#37C8FF #FF3764 #FFD237

monochromatic

#0088BC #00B4F9 #37C8FF #74D9FF #B1EAFF

Accessibility & contrast

On white

1.93

#37C8FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#37C8FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37C8FF

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37C8FF	#FFFFFF	#000000	##000000
##37C8FF	1.00	1.93	10.87	10.87
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.87	21.00	1.00	1.00
##000000	10.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ABC5FF

Deuteranopia (green-blind)

#91B2FE

Tritanopia (blue-blind)

#00D7DA

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #37c8ff;
/* rgb */ color: rgb(55, 200, 255);
/* oklch */ color: oklch(78.2% 0.140 229.0);

Tailwind

colors: {
  custom: {
    50: '#8cd8ff',
    500: '#37c8ff',
    950: '#000000',
  },
}

SCSS

$custom: #37c8ff;
$custom-light: #8cd8ff;
$custom-dark: #000000;

JSON

{
  "hex": "#37c8ff",
  "rgb": {
    "r": 55,
    "g": 200,
    "b": 255
  },
  "hsl": {
    "h": 196.5,
    "s": 100,
    "l": 60.784
  },
  "oklch": {
    "l": 0.78176,
    "c": 0.14038,
    "h": 229
  },
  "luminance": 0.49341
}

Semantic roles & 50–950 ramp

primary

#37C8FF

secondary

#EFB8A3

accent

#3F00E6

background

#F9FDFF

surface

#F2FAFF

border

#CCD3D7

text

#0E1418

muted

#7E8386

Preview Lab

Preview with #37C8FF

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

Preview Lab → · Contrast checker → · Palette generator →