#63BDDF#63BDDF

#63BDDF is a light, moderate cyan. Relative luminance 0.444; OKLCH L 75.6% C 0.099 H 225.1°. Best body text is #000000 at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#63BDDF
RGB	rgb(99, 189, 223)
HSL	hsl(196, 66%, 63%)
HSV	hsv(196, 56%, 87%)
CMYK	cmyk(55.6%, 15.2%, 0%, 12.5%)
CIE-LAB	lab(72.48, -17.41, -25.20)
CIE-LCH	lch(72.48, 30.63, 235.36°)
OKLab	oklab(75.57% -0.0697 -0.07)
OKLCH	oklch(75.57% 0.099 225.1)
XYZ	xyz(36.6573, 44.3722, 76.4306)
Luminance	0.4438 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63BDDF #DF8563

analogous

#63DFC3 #63BDDF #637FDF

triadic

#63BDDF #DF63BD #BDDF63

tetradic

#63BDDF #C363DF #DF8563 #7FDF63

square

#63BDDF #C363DF #DF8563 #7FDF63

split-complementary

#63BDDF #DF637F #DFC363

monochromatic

#2282A6 #30A8D5 #63BDDF #96D2E9 #C9E8F4

Accessibility & contrast

On white

2.13

#63BDDF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.88

#63BDDF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63BDDF

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63BDDF	#FFFFFF	#000000	##000000
##63BDDF	1.00	2.13	9.88	9.88
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.88	21.00	1.00	1.00
##000000	9.88	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AAB9E1

Deuteranopia (green-blind)

#98ACDF

Tritanopia (blue-blind)

#00C7C8

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #63bddf;
/* rgb */ color: rgb(99, 189, 223);
/* oklch */ color: oklch(75.6% 0.099 225.1);

Tailwind

colors: {
  custom: {
    50: '#99d1e9',
    500: '#63bddf',
    950: '#000000',
  },
}

SCSS

$custom: #63bddf;
$custom-light: #99d1e9;
$custom-dark: #000000;

JSON

{
  "hex": "#63bddf",
  "rgb": {
    "r": 99,
    "g": 189,
    "b": 223
  },
  "hsl": {
    "h": 196.452,
    "s": 65.957,
    "l": 63.137
  },
  "oklch": {
    "l": 0.75566,
    "c": 0.09883,
    "h": 225.1
  },
  "luminance": 0.44376
}

Semantic roles & 50–950 ramp

primary

#63BDDF

secondary

#E5C5B9

accent

#4A18CE

background

#F9FCFE

surface

#F2F9FC

border

#CCD2D5

text

#0F1416

muted

#7E8284

Preview Lab

Preview with #63BDDF

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

Preview Lab → · Contrast checker → · Palette generator →