#37C7E5#37C7E5

#37C7E5 is a light, vivid cyan. Relative luminance 0.473; OKLCH L 76.8% C 0.124 H 215.4°. Best body text is #000000 at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#37C7E5
RGB	rgb(55, 199, 229)
HSL	hsl(190, 77%, 56%)
HSV	hsv(190, 76%, 90%)
CMYK	cmyk(76%, 13.1%, 0%, 10.2%)
CIE-LAB	lab(74.39, -27.39, -25.63)
CIE-LCH	lch(74.39, 37.51, 223.10°)
OKLab	oklab(76.83% -0.1008 -0.0715)
OKLCH	oklch(76.83% 0.124 215.4)
XYZ	xyz(36.1358, 47.3118, 81.3411)
Luminance	0.4732 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#37C7E5 #E55537

analogous

#37E5AC #37C7E5 #3770E5

triadic

#37C7E5 #E537C7 #C7E537

tetradic

#37C7E5 #AC37E5 #E55537 #70E537

square

#37C7E5 #AC37E5 #E55537 #70E537

split-complementary

#37C7E5 #E53770 #E5AC37

monochromatic

#137A8F #1AA8C5 #37C7E5 #6DD6EC #A3E5F3

Accessibility & contrast

On white

2.01

#37C7E5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.46

#37C7E5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #37C7E5

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##37C7E5	#FFFFFF	#000000	##000000
##37C7E5	1.00	2.01	10.46	10.46
#FFFFFF	2.01	1.00	21.00	21.00
#000000	10.46	21.00	1.00	1.00
##000000	10.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B2C1E7

Deuteranopia (green-blind)

#9BB0E5

Tritanopia (blue-blind)

#00D2D0

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #37c7e5;
/* rgb */ color: rgb(55, 199, 229);
/* oklch */ color: oklch(76.8% 0.124 215.4);

Tailwind

colors: {
  custom: {
    50: '#88d8ed',
    500: '#37c7e5',
    950: '#000000',
  },
}

SCSS

$custom: #37c7e5;
$custom-light: #88d8ed;
$custom-dark: #000000;

JSON

{
  "hex": "#37c7e5",
  "rgb": {
    "r": 55,
    "g": 199,
    "b": 229
  },
  "hsl": {
    "h": 190.345,
    "s": 76.991,
    "l": 55.686
  },
  "oklch": {
    "l": 0.76832,
    "c": 0.12358,
    "h": 215.4
  },
  "luminance": 0.47316
}

Semantic roles & 50–950 ramp

primary

#37C7E5

secondary

#E0A498

accent

#5534F4

background

#F9FDFE

surface

#F2FAFD

border

#CCD3D5

text

#0D1416

muted

#7E8384

Preview Lab

Preview with #37C7E5

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

Preview Lab → · Contrast checker → · Palette generator →