#63ADEB#63ADEB

#63ADEB is a light, moderate cyan. Relative luminance 0.385; OKLCH L 72.5% C 0.117 H 245.7°. Best body text is #000000 at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#63ADEB
RGB	rgb(99, 173, 235)
HSL	hsl(207, 77%, 65%)
HSV	hsv(207, 58%, 92%)
CMYK	cmyk(57.9%, 26.4%, 0%, 7.8%)
CIE-LAB	lab(68.41, -5.20, -38.01)
CIE-LCH	lch(68.41, 38.37, 262.22°)
OKLab	oklab(72.5% -0.0483 -0.1068)
OKLCH	oklch(72.5% 0.117 245.7)
XYZ	xyz(35.0791, 38.5348, 84.1705)
Luminance	0.3854 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63ADEB #EBA163

analogous

#63EBE5 #63ADEB #6369EB

triadic

#63ADEB #EB63AD #ADEB63

tetradic

#63ADEB #E563EB #EBA163 #69EB63

square

#63ADEB #E563EB #EBA163 #69EB63

split-complementary

#63ADEB #EB6369 #EBE563

monochromatic

#1871BC #2D90E4 #63ADEB #99CAF2 #CFE6F9

Accessibility & contrast

On white

2.41

#63ADEB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.71

#63ADEB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63ADEB

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63ADEB	#FFFFFF	#000000	##000000
##63ADEB	1.00	2.41	8.71	8.71
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.71	21.00	1.00	1.00
##000000	8.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#92AEEE

Deuteranopia (green-blind)

#80A1EA

Tritanopia (blue-blind)

#00BCC2

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63adeb;
/* rgb */ color: rgb(99, 173, 235);
/* oklch */ color: oklch(72.5% 0.117 245.7);

Tailwind

colors: {
  custom: {
    50: '#99c5f1',
    500: '#63adeb',
    950: '#000000',
  },
}

SCSS

$custom: #63adeb;
$custom-light: #99c5f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63adeb",
  "rgb": {
    "r": 99,
    "g": 173,
    "b": 235
  },
  "hsl": {
    "h": 207.353,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.72496,
    "c": 0.11719,
    "h": 245.7
  },
  "luminance": 0.38538
}

Semantic roles & 50–950 ramp

primary

#63ADEB

secondary

#ECD3BE

accent

#6A0CDA

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63ADEB

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

Preview Lab → · Contrast checker → · Palette generator →