#63BEE9#63BEE9

#63BEE9 is a light, moderate cyan. Relative luminance 0.454; OKLCH L 76.2% C 0.106 H 230.9°. Best body text is #000000 at 10.07:1 contrast (WCAG AA passes).

Color values

HEX	#63BEE9
RGB	rgb(99, 190, 233)
HSL	hsl(199, 75%, 65%)
HSV	hsv(199, 58%, 91%)
CMYK	cmyk(57.5%, 18.5%, 0%, 8.6%)
CIE-LAB	lab(73.13, -14.99, -29.63)
CIE-LCH	lch(73.13, 33.20, 243.17°)
OKLab	oklab(76.21% -0.0672 -0.0826)
OKLCH	oklch(76.21% 0.107 230.9)
XYZ	xyz(38.2614, 45.3592, 83.8138)
Luminance	0.4536 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BEE9 #E98E63

analogous

#63E9D1 #63BEE9 #637BE9

triadic

#63BEE9 #E963BE #BEE963

tetradic

#63BEE9 #D163E9 #E98E63 #7BE963

square

#63BEE9 #D163E9 #E98E63 #7BE963

split-complementary

#63BEE9 #E9637B #E9D163

monochromatic

#1A85B8 #2DA8E1 #63BEE9 #99D4F1 #CEEBF8

Accessibility & contrast

On white

2.08

#63BEE9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.07

#63BEE9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BEE9

10.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BEE9	#FFFFFF	#000000	##000000
##63BEE9	1.00	2.08	10.07	10.07
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.07	21.00	1.00	1.00
##000000	10.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A8BCEB

Deuteranopia (green-blind)

#96ADE8

Tritanopia (blue-blind)

#00CACC

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #63bee9;
/* rgb */ color: rgb(99, 190, 233);
/* oklch */ color: oklch(76.2% 0.106 230.9);

Tailwind

colors: {
  custom: {
    50: '#9ad1f0',
    500: '#63bee9',
    950: '#000000',
  },
}

SCSS

$custom: #63bee9;
$custom-light: #9ad1f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63bee9",
  "rgb": {
    "r": 99,
    "g": 190,
    "b": 233
  },
  "hsl": {
    "h": 199.254,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.76206,
    "c": 0.1065,
    "h": 230.9
  },
  "luminance": 0.45363
}

Semantic roles & 50–950 ramp

primary

#63BEE9

secondary

#EBCCBD

accent

#4F0ED7

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #63BEE9

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

Preview Lab → · Contrast checker → · Palette generator →