#63BBE7#63BBE7

#63BBE7 is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.4% C 0.106 H 232.3°. Best body text is #000000 at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#63BBE7
RGB	rgb(99, 187, 231)
HSL	hsl(200, 73%, 65%)
HSV	hsv(200, 57%, 91%)
CMYK	cmyk(57.1%, 19%, 0%, 9.4%)
CIE-LAB	lab(72.20, -14.00, -29.97)
CIE-LCH	lch(72.20, 33.08, 244.96°)
OKLab	oklab(75.44% -0.0647 -0.0836)
OKLCH	oklch(75.44% 0.106 232.3)
XYZ	xyz(37.3342, 43.9594, 82.1033)
Luminance	0.4396 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBE7 #E78F63

analogous

#63E7D1 #63BBE7 #6379E7

triadic

#63BBE7 #E763BB #BBE763

tetradic

#63BBE7 #D163E7 #E78F63 #79E763

square

#63BBE7 #D163E7 #E78F63 #79E763

split-complementary

#63BBE7 #E76379 #E7D163

monochromatic

#1C81B4 #2EA4DF #63BBE7 #98D2EF #CDE9F7

Accessibility & contrast

On white

2.14

#63BBE7 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.79

#63BBE7 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBE7

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBE7	#FFFFFF	#000000	##000000
##63BBE7	1.00	2.14	9.79	9.79
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.79	21.00	1.00	1.00
##000000	9.79	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B9E9

Deuteranopia (green-blind)

#93ABE6

Tritanopia (blue-blind)

#00C7C9

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bbe7;
/* rgb */ color: rgb(99, 187, 231);
/* oklch */ color: oklch(75.4% 0.106 232.3);

Tailwind

colors: {
  custom: {
    50: '#99cfee',
    500: '#63bbe7',
    950: '#000000',
  },
}

SCSS

$custom: #63bbe7;
$custom-light: #99cfee;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbe7",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 231
  },
  "hsl": {
    "h": 200,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.75444,
    "c": 0.10571,
    "h": 232.3
  },
  "luminance": 0.43963
}

Semantic roles & 50–950 ramp

primary

#63BBE7

secondary

#EACBBC

accent

#5210D5

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63BBE7

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

Preview Lab → · Contrast checker → · Palette generator →