#63BBE8#63BBE8

#63BBE8 is a light, moderate cyan. Relative luminance 0.440; OKLCH L 75.5% C 0.107 H 232.9°. Best body text is #000000 at 9.80:1 contrast (WCAG AA passes).

Color values

HEX	#63BBE8
RGB	rgb(99, 187, 232)
HSL	hsl(200, 74%, 65%)
HSV	hsv(200, 57%, 91%)
CMYK	cmyk(57.3%, 19.4%, 0%, 9%)
CIE-LAB	lab(72.24, -13.70, -30.45)
CIE-LCH	lch(72.24, 33.39, 245.78°)
OKLab	oklab(75.49% -0.0643 -0.085)
OKLCH	oklch(75.49% 0.107 232.9)
XYZ	xyz(37.4759, 44.0160, 82.8493)
Luminance	0.4402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BBE8 #E89063

analogous

#63E8D3 #63BBE8 #6378E8

triadic

#63BBE8 #E863BB #BBE863

tetradic

#63BBE8 #D363E8 #E89063 #78E863

square

#63BBE8 #D363E8 #E89063 #78E863

split-complementary

#63BBE8 #E86378 #E8D363

monochromatic

#1B81B6 #2EA4E0 #63BBE8 #98D2F0 #CEE9F8

Accessibility & contrast

On white

2.14

#63BBE8 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.80

#63BBE8 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BBE8

9.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BBE8	#FFFFFF	#000000	##000000
##63BBE8	1.00	2.14	9.80	9.80
#FFFFFF	2.14	1.00	21.00	21.00
#000000	9.80	21.00	1.00	1.00
##000000	9.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5B9EA

Deuteranopia (green-blind)

#92ABE7

Tritanopia (blue-blind)

#00C7CA

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #63bbe8;
/* rgb */ color: rgb(99, 187, 232);
/* oklch */ color: oklch(75.5% 0.107 232.9);

Tailwind

colors: {
  custom: {
    50: '#99cfef',
    500: '#63bbe8',
    950: '#000000',
  },
}

SCSS

$custom: #63bbe8;
$custom-light: #99cfef;
$custom-dark: #000000;

JSON

{
  "hex": "#63bbe8",
  "rgb": {
    "r": 99,
    "g": 187,
    "b": 232
  },
  "hsl": {
    "h": 200.301,
    "s": 74.302,
    "l": 64.902
  },
  "oklch": {
    "l": 0.75487,
    "c": 0.10659,
    "h": 232.9
  },
  "luminance": 0.44019
}

Semantic roles & 50–950 ramp

primary

#63BBE8

secondary

#EACCBD

accent

#530FD6

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1316

muted

#7F8284

Preview Lab

Preview with #63BBE8

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

Preview Lab → · Contrast checker → · Palette generator →