#63BCEB#63BCEB

#63BCEB is a light, moderate cyan. Relative luminance 0.446; OKLCH L 75.8% C 0.109 H 233.8°. Best body text is #000000 at 9.92:1 contrast (WCAG AA passes).

Color values

HEX	#63BCEB
RGB	rgb(99, 188, 235)
HSL	hsl(201, 77%, 65%)
HSV	hsv(201, 58%, 92%)
CMYK	cmyk(57.9%, 20%, 0%, 7.8%)
CIE-LAB	lab(72.64, -13.33, -31.47)
CIE-LCH	lch(72.64, 34.17, 247.04°)
OKLab	oklab(75.84% -0.0644 -0.0879)
OKLCH	oklch(75.84% 0.109 233.8)
XYZ	xyz(38.1185, 44.6137, 85.1836)
Luminance	0.4462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BCEB #EB9263

analogous

#63EBD6 #63BCEB #6378EB

triadic

#63BCEB #EB63BC #BCEB63

tetradic

#63BCEB #D663EB #EB9263 #78EB63

square

#63BCEB #D663EB #EB9263 #78EB63

split-complementary

#63BCEB #EB6378 #EBD663

monochromatic

#1883BC #2DA5E4 #63BCEB #99D3F2 #CFEBF9

Accessibility & contrast

On white

2.12

#63BCEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.92

#63BCEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BCEB

9.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BCEB	#FFFFFF	#000000	##000000
##63BCEB	1.00	2.12	9.92	9.92
#FFFFFF	2.12	1.00	21.00	21.00
#000000	9.92	21.00	1.00	1.00
##000000	9.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A5BAED

Deuteranopia (green-blind)

#92ACEA

Tritanopia (blue-blind)

#00C9CC

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bceb;
/* rgb */ color: rgb(99, 188, 235);
/* oklch */ color: oklch(75.8% 0.109 233.8);

Tailwind

colors: {
  custom: {
    50: '#9ad0f1',
    500: '#63bceb',
    950: '#000000',
  },
}

SCSS

$custom: #63bceb;
$custom-light: #9ad0f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63bceb",
  "rgb": {
    "r": 99,
    "g": 188,
    "b": 235
  },
  "hsl": {
    "h": 200.735,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.7584,
    "c": 0.10893,
    "h": 233.8
  },
  "luminance": 0.44617
}

Semantic roles & 50–950 ramp

primary

#63BCEB

secondary

#ECCEBE

accent

#530CDA

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1416

muted

#7F8284

Preview Lab

Preview with #63BCEB

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

Preview Lab → · Contrast checker → · Palette generator →