#63B5DE#63B5DE

#63B5DE is a light, moderate cyan. Relative luminance 0.410; OKLCH L 73.7% C 0.100 H 232.0°. Best body text is #000000 at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#63B5DE
RGB	rgb(99, 181, 222)
HSL	hsl(200, 65%, 63%)
HSV	hsv(200, 55%, 87%)
CMYK	cmyk(55.4%, 18.5%, 0%, 12.9%)
CIE-LAB	lab(70.16, -13.49, -28.21)
CIE-LCH	lch(70.16, 31.28, 244.44°)
OKLab	oklab(73.71% -0.0613 -0.0786)
OKLCH	oklch(73.71% 0.1 232)
XYZ	xyz(34.8493, 40.9712, 75.1648)
Luminance	0.4097 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B5DE #DE8C63

analogous

#63DEC9 #63B5DE #6377DE

triadic

#63B5DE #DE63B5 #B5DE63

tetradic

#63B5DE #C963DE #DE8C63 #77DE63

square

#63B5DE #C963DE #DE8C63 #77DE63

split-complementary

#63B5DE #DE6377 #DEC963

monochromatic

#2379A4 #309DD3 #63B5DE #96CDE9 #C8E5F3

Accessibility & contrast

On white

2.28

#63B5DE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.19

#63B5DE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B5DE

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B5DE	#FFFFFF	#000000	##000000
##63B5DE	1.00	2.28	9.19	9.19
#FFFFFF	2.28	1.00	21.00	21.00
#000000	9.19	21.00	1.00	1.00
##000000	9.19	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A1B3E0

Deuteranopia (green-blind)

#90A6DD

Tritanopia (blue-blind)

#00C0C2

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #63b5de;
/* rgb */ color: rgb(99, 181, 222);
/* oklch */ color: oklch(73.7% 0.100 232.0);

Tailwind

colors: {
  custom: {
    50: '#98cbe8',
    500: '#63b5de',
    950: '#000000',
  },
}

SCSS

$custom: #63b5de;
$custom-light: #98cbe8;
$custom-dark: #000000;

JSON

{
  "hex": "#63b5de",
  "rgb": {
    "r": 99,
    "g": 181,
    "b": 222
  },
  "hsl": {
    "h": 200,
    "s": 65.079,
    "l": 62.941
  },
  "oklch": {
    "l": 0.73705,
    "c": 0.09971,
    "h": 232
  },
  "luminance": 0.40974
}

Semantic roles & 50–950 ramp

primary

#63B5DE

secondary

#E5C7B8

accent

#5519CD

background

#F9FCFE

surface

#F2F8FC

border

#CCD1D5

text

#0E1316

muted

#7E8284

Preview Lab

Preview with #63B5DE

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

Preview Lab → · Contrast checker → · Palette generator →