#63A8DD#63A8DD

#63A8DD is a light, moderate cyan. Relative luminance 0.359; OKLCH L 70.7% C 0.105 H 243.2°. Best body text is #000000 at 8.18:1 contrast (WCAG AA passes).

Color values

HEX	#63A8DD
RGB	rgb(99, 168, 221)
HSL	hsl(206, 64%, 63%)
HSV	hsv(206, 55%, 87%)
CMYK	cmyk(55.2%, 24%, 0%, 13.3%)
CIE-LAB	lab(66.42, -6.74, -33.43)
CIE-LCH	lch(66.42, 34.10, 258.60°)
OKLab	oklab(70.74% -0.0473 -0.0936)
OKLCH	oklch(70.74% 0.105 243.2)
XYZ	xyz(32.1946, 35.8756, 73.6207)
Luminance	0.3588 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8DD #DD9863

analogous

#63DDD5 #63A8DD #636BDD

triadic

#63A8DD #DD63A8 #A8DD63

tetradic

#63A8DD #D563DD #DD9863 #6BDD63

square

#63A8DD #D563DD #DD9863 #6BDD63

split-complementary

#63A8DD #DD636B #DDD563

monochromatic

#236BA2 #318CD2 #63A8DD #95C4E8 #C7E0F3

Accessibility & contrast

On white

2.57

#63A8DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.18

#63A8DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8DD

8.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8DD	#FFFFFF	#000000	##000000
##63A8DD	1.00	2.57	8.18	8.18
#FFFFFF	2.57	1.00	21.00	21.00
#000000	8.18	21.00	1.00	1.00
##000000	8.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#91A8DF

Deuteranopia (green-blind)

#819CDC

Tritanopia (blue-blind)

#00B5BA

Achromatopsia (no color)

#A1A1A1

Design tokens & code

CSS

--color: #63a8dd;
/* rgb */ color: rgb(99, 168, 221);
/* oklch */ color: oklch(70.7% 0.105 243.2);

Tailwind

colors: {
  custom: {
    50: '#98c1e7',
    500: '#63a8dd',
    950: '#000000',
  },
}

SCSS

$custom: #63a8dd;
$custom-light: #98c1e7;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8dd",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 221
  },
  "hsl": {
    "h": 206.066,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.70735,
    "c": 0.10484,
    "h": 243.2
  },
  "luminance": 0.35878
}

Semantic roles & 50–950 ramp

primary

#63A8DD

secondary

#E4CBB8

accent

#6719CC

background

#F9FBFE

surface

#F2F7FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #63A8DD

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

Preview Lab → · Contrast checker → · Palette generator →