#63C4E9#63C4E9

#63C4E9 is a light, moderate cyan. Relative luminance 0.480; OKLCH L 77.6% C 0.105 H 225.6°. Best body text is #000000 at 10.60:1 contrast (WCAG AA passes).

Color values

HEX	#63C4E9
RGB	rgb(99, 196, 233)
HSL	hsl(197, 75%, 65%)
HSV	hsv(197, 58%, 91%)
CMYK	cmyk(57.5%, 15.9%, 0%, 8.6%)
CIE-LAB	lab(74.83, -18.12, -27.01)
CIE-LCH	lch(74.83, 32.52, 236.15°)
OKLab	oklab(77.57% -0.0736 -0.0752)
OKLCH	oklch(77.57% 0.105 225.6)
XYZ	xyz(39.5878, 48.0119, 84.2560)
Luminance	0.4802 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C4E9 #E98863

analogous

#63E9CB #63C4E9 #6381E9

triadic

#63C4E9 #E963C4 #C4E963

tetradic

#63C4E9 #CB63E9 #E98863 #81E963

square

#63C4E9 #CB63E9 #E98863 #81E963

split-complementary

#63C4E9 #E96381 #E9CB63

monochromatic

#1A8CB8 #2DB0E1 #63C4E9 #99D8F1 #CEEDF8

Accessibility & contrast

On white

1.98

#63C4E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.60

#63C4E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C4E9

10.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C4E9	#FFFFFF	#000000	##000000
##63C4E9	1.00	1.98	10.60	10.60
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.60	21.00	1.00	1.00
##000000	10.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B0C0EB

Deuteranopia (green-blind)

#9DB2E9

Tritanopia (blue-blind)

#00CFD0

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c4e9;
/* rgb */ color: rgb(99, 196, 233);
/* oklch */ color: oklch(77.6% 0.105 225.6);

Tailwind

colors: {
  custom: {
    50: '#9ad6f0',
    500: '#63c4e9',
    950: '#000000',
  },
}

SCSS

$custom: #63c4e9;
$custom-light: #9ad6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63c4e9",
  "rgb": {
    "r": 99,
    "g": 196,
    "b": 233
  },
  "hsl": {
    "h": 196.567,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.77565,
    "c": 0.10521,
    "h": 225.6
  },
  "luminance": 0.48016
}

Semantic roles & 50–950 ramp

primary

#63C4E9

secondary

#EBCABD

accent

#460ED7

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C4E9

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

Preview Lab → · Contrast checker → · Palette generator →