#63C8EB#63C8EB

#63C8EB is a light, moderate cyan. Relative luminance 0.500; OKLCH L 78.6% C 0.106 H 223.4°. Best body text is #000000 at 10.99:1 contrast (WCAG AA passes).

Color values

HEX	#63C8EB
RGB	rgb(99, 200, 235)
HSL	hsl(195, 77%, 65%)
HSV	hsv(195, 58%, 92%)
CMYK	cmyk(57.9%, 14.9%, 0%, 7.8%)
CIE-LAB	lab(76.04, -19.59, -26.23)
CIE-LCH	lch(76.04, 32.74, 233.25°)
OKLab	oklab(78.55% -0.0771 -0.073)
OKLCH	oklch(78.55% 0.106 223.4)
XYZ	xyz(40.7894, 49.9554, 86.0739)
Luminance	0.4996 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8EB #EB8663

analogous

#63EBCA #63C8EB #6384EB

triadic

#63C8EB #EB63C8 #C8EB63

tetradic

#63C8EB #CA63EB #EB8663 #84EB63

square

#63C8EB #CA63EB #EB8663 #84EB63

split-complementary

#63C8EB #EB6384 #EBCA63

monochromatic

#1891BC #2DB5E4 #63C8EB #99DBF2 #CFEEF9

Accessibility & contrast

On white

1.91

#63C8EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.99

#63C8EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8EB

10.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8EB	#FFFFFF	#000000	##000000
##63C8EB	1.00	1.91	10.99	10.99
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.99	21.00	1.00	1.00
##000000	10.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4C4ED

Deuteranopia (green-blind)

#A0B5EB

Tritanopia (blue-blind)

#00D3D3

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #63c8eb;
/* rgb */ color: rgb(99, 200, 235);
/* oklch */ color: oklch(78.6% 0.106 223.4);

Tailwind

colors: {
  custom: {
    50: '#9ad8f1',
    500: '#63c8eb',
    950: '#000000',
  },
}

SCSS

$custom: #63c8eb;
$custom-light: #9ad8f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8eb",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 235
  },
  "hsl": {
    "h": 195.441,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.78554,
    "c": 0.10618,
    "h": 223.4
  },
  "luminance": 0.49959
}

Semantic roles & 50–950 ramp

primary

#63C8EB

secondary

#ECCABE

accent

#410CDA

background

#FAFDFE

surface

#F4FAFD

border

#CED3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C8EB

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

Preview Lab → · Contrast checker → · Palette generator →