#63A3DD#63A3DD

#63A3DD is a light, moderate cyan. Relative luminance 0.341; OKLCH L 69.6% C 0.108 H 247.3°. Best body text is #000000 at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#63A3DD
RGB	rgb(99, 163, 221)
HSL	hsl(209, 64%, 63%)
HSV	hsv(209, 55%, 87%)
CMYK	cmyk(55.2%, 26.2%, 0%, 13.3%)
CIE-LAB	lab(65.01, -3.96, -35.62)
CIE-LCH	lch(65.01, 35.84, 263.66°)
OKLab	oklab(69.62% -0.0417 -0.0999)
OKLCH	oklch(69.62% 0.108 247.3)
XYZ	xyz(31.2892, 34.0648, 73.3189)
Luminance	0.3407 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3DD #DD9D63

analogous

#63DDDA #63A3DD #6366DD

triadic

#63A3DD #DD63A3 #A3DD63

tetradic

#63A3DD #DA63DD #DD9D63 #66DD63

square

#63A3DD #DA63DD #DD9D63 #66DD63

split-complementary

#63A3DD #DD6366 #DDDA63

monochromatic

#2366A2 #3185D2 #63A3DD #95C1E8 #C7DEF3

Accessibility & contrast

On white

2.69

#63A3DD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.81

#63A3DD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3DD

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3DD	#FFFFFF	#000000	##000000
##63A3DD	1.00	2.69	7.81	7.81
#FFFFFF	2.69	1.00	21.00	21.00
#000000	7.81	21.00	1.00	1.00
##000000	7.81	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8BA5E0

Deuteranopia (green-blind)

#7A98DC

Tritanopia (blue-blind)

#00B1B7

Achromatopsia (no color)

#9E9E9E

Design tokens & code

CSS

--color: #63a3dd;
/* rgb */ color: rgb(99, 163, 221);
/* oklch */ color: oklch(69.6% 0.108 247.3);

Tailwind

colors: {
  custom: {
    50: '#98bee7',
    500: '#63a3dd',
    950: '#000000',
  },
}

SCSS

$custom: #63a3dd;
$custom-light: #98bee7;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3dd",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 221
  },
  "hsl": {
    "h": 208.525,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.69622,
    "c": 0.10826,
    "h": 247.3
  },
  "luminance": 0.34067
}

Semantic roles & 50–950 ramp

primary

#63A3DD

secondary

#E4CDB8

accent

#6E19CC

background

#F9FBFE

surface

#F2F6FC

border

#CCD0D5

text

#0E1216

muted

#7E8184

Preview Lab

Preview with #63A3DD

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

Preview Lab → · Contrast checker → · Palette generator →