#63AFDF#63AFDF

#63AFDF is a light, moderate cyan. Relative luminance 0.386; OKLCH L 72.4% C 0.103 H 238.2°. Best body text is #000000 at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#63AFDF
RGB	rgb(99, 175, 223)
HSL	hsl(203, 66%, 63%)
HSV	hsv(203, 56%, 87%)
CMYK	cmyk(55.6%, 21.5%, 0%, 12.5%)
CIE-LAB	lab(68.49, -9.97, -31.33)
CIE-LCH	lch(68.49, 32.88, 252.35°)
OKLab	oklab(72.39% -0.0544 -0.0875)
OKLCH	oklch(72.39% 0.103 238.2)
XYZ	xyz(33.7899, 38.6373, 75.4748)
Luminance	0.3864 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63AFDF #DF9363

analogous

#63DFD1 #63AFDF #6371DF

triadic

#63AFDF #DF63AF #AFDF63

tetradic

#63AFDF #D163DF #DF9363 #71DF63

square

#63AFDF #D163DF #DF9363 #71DF63

split-complementary

#63AFDF #DF6371 #DFD163

monochromatic

#2273A6 #3095D5 #63AFDF #96C9E9 #C9E3F4

Accessibility & contrast

On white

2.41

#63AFDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.73

#63AFDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63AFDF

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63AFDF	#FFFFFF	#000000	##000000
##63AFDF	1.00	2.41	8.73	8.73
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.73	21.00	1.00	1.00
##000000	8.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#99AEE1

Deuteranopia (green-blind)

#88A1DE

Tritanopia (blue-blind)

#00BBBF

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #63afdf;
/* rgb */ color: rgb(99, 175, 223);
/* oklch */ color: oklch(72.4% 0.103 238.2);

Tailwind

colors: {
  custom: {
    50: '#98c6e9',
    500: '#63afdf',
    950: '#000000',
  },
}

SCSS

$custom: #63afdf;
$custom-light: #98c6e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63afdf",
  "rgb": {
    "r": 99,
    "g": 175,
    "b": 223
  },
  "hsl": {
    "h": 203.226,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.72394,
    "c": 0.10304,
    "h": 238.2
  },
  "luminance": 0.3864
}

Semantic roles & 50–950 ramp

primary

#63AFDF

secondary

#E5CAB9

accent

#5E18CE

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63AFDF

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

Preview Lab → · Contrast checker → · Palette generator →