#63D5EC#63D5EC

#63D5EC is a light, moderate cyan. Relative luminance 0.563; OKLCH L 81.6% C 0.108 H 212.9°. Best body text is #000000 at 12.26:1 contrast (WCAG AA passes).

Color values

HEX	#63D5EC
RGB	rgb(99, 213, 236)
HSL	hsl(190, 78%, 66%)
HSV	hsv(190, 58%, 93%)
CMYK	cmyk(58.1%, 9.7%, 0%, 7.5%)
CIE-LAB	lab(79.78, -25.84, -21.08)
CIE-LCH	lch(79.78, 33.34, 219.20°)
OKLab	oklab(81.56% -0.0904 -0.0584)
OKLCH	oklch(81.56% 0.108 212.9)
XYZ	xyz(44.0740, 56.2929, 87.8835)
Luminance	0.5630 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D5EC #EC7A63

analogous

#63ECBE #63D5EC #6390EC

triadic

#63D5EC #EC63D5 #D5EC63

tetradic

#63D5EC #BE63EC #EC7A63 #90EC63

square

#63D5EC #BE63EC #EC7A63 #90EC63

split-complementary

#63D5EC #EC6390 #ECBE63

monochromatic

#17A2BE #2CC6E5 #63D5EC #9AE4F3 #D0F2F9

Accessibility & contrast

On white

1.71

#63D5EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.26

#63D5EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D5EC

12.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D5EC	#FFFFFF	#000000	##000000
##63D5EC	1.00	1.71	12.26	12.26
#FFFFFF	1.71	1.00	21.00	21.00
#000000	12.26	21.00	1.00	1.00
##000000	12.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3CFED

Deuteranopia (green-blind)

#AFBFEC

Tritanopia (blue-blind)

#00DEDC

Achromatopsia (no color)

#C6C6C6

Design tokens & code

CSS

--color: #63d5ec;
/* rgb */ color: rgb(99, 213, 236);
/* oklch */ color: oklch(81.6% 0.108 212.9);

Tailwind

colors: {
  custom: {
    50: '#9be2f2',
    500: '#63d5ec',
    950: '#000000',
  },
}

SCSS

$custom: #63d5ec;
$custom-light: #9be2f2;
$custom-dark: #000000;

JSON

{
  "hex": "#63d5ec",
  "rgb": {
    "r": 99,
    "g": 213,
    "b": 236
  },
  "hsl": {
    "h": 190.073,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.81559,
    "c": 0.10768,
    "h": 212.9
  },
  "luminance": 0.56297
}

Semantic roles & 50–950 ramp

primary

#63D5EC

secondary

#BC4D37

accent

#2E0BDB

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1516

muted

#808485

Preview Lab

Preview with #63D5EC

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

Preview Lab → · Contrast checker → · Palette generator →