#63C3EA#63C3EA

#63C3EA is a light, moderate cyan. Relative luminance 0.476; OKLCH L 77.4% C 0.106 H 227.1°. Best body text is #000000 at 10.52:1 contrast (WCAG AA passes).

Color values

HEX	#63C3EA
RGB	rgb(99, 195, 234)
HSL	hsl(197, 76%, 65%)
HSV	hsv(197, 58%, 92%)
CMYK	cmyk(57.7%, 16.7%, 0%, 8.2%)
CIE-LAB	lab(74.58, -17.30, -27.93)
CIE-LCH	lch(74.58, 32.85, 238.22°)
OKLab	oklab(77.38% -0.0722 -0.0778)
OKLCH	oklch(77.38% 0.106 227.1)
XYZ	xyz(39.5062, 47.6196, 84.9355)
Luminance	0.4762 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C3EA #EA8A63

analogous

#63EACD #63C3EA #6380EA

triadic

#63C3EA #EA63C3 #C3EA63

tetradic

#63C3EA #CD63EA #EA8A63 #80EA63

square

#63C3EA #CD63EA #EA8A63 #80EA63

split-complementary

#63C3EA #EA6380 #EACD63

monochromatic

#198BBA #2DAEE3 #63C3EA #99D8F1 #CFECF9

Accessibility & contrast

On white

2.00

#63C3EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.52

#63C3EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C3EA

10.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C3EA	#FFFFFF	#000000	##000000
##63C3EA	1.00	2.00	10.52	10.52
#FFFFFF	2.00	1.00	21.00	21.00
#000000	10.52	21.00	1.00	1.00
##000000	10.52	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AEC0EC

Deuteranopia (green-blind)

#9BB1EA

Tritanopia (blue-blind)

#00CED0

Achromatopsia (no color)

#B7B7B7

Design tokens & code

CSS

--color: #63c3ea;
/* rgb */ color: rgb(99, 195, 234);
/* oklch */ color: oklch(77.4% 0.106 227.1);

Tailwind

colors: {
  custom: {
    50: '#9ad5f0',
    500: '#63c3ea',
    950: '#000000',
  },
}

SCSS

$custom: #63c3ea;
$custom-light: #9ad5f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63c3ea",
  "rgb": {
    "r": 99,
    "g": 195,
    "b": 234
  },
  "hsl": {
    "h": 197.333,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.77379,
    "c": 0.10611,
    "h": 227.1
  },
  "luminance": 0.47623
}

Semantic roles & 50–950 ramp

primary

#63C3EA

secondary

#EBCBBE

accent

#480DD8

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C3EA

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

Preview Lab → · Contrast checker → · Palette generator →