#63D9F3#63D9F3

#63D9F3 is a very light, moderate cyan. Relative luminance 0.587; OKLCH L 82.7% C 0.111 H 214.5°. Best body text is #000000 at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#63D9F3
RGB	rgb(99, 217, 243)
HSL	hsl(191, 86%, 67%)
HSV	hsv(191, 59%, 95%)
CMYK	cmyk(59.3%, 10.7%, 0%, 4.7%)
CIE-LAB	lab(81.15, -25.82, -22.72)
CIE-LCH	lch(81.15, 34.40, 221.34°)
OKLab	oklab(82.74% -0.0919 -0.063)
OKLCH	oklch(82.74% 0.111 214.5)
XYZ	xyz(46.1295, 58.7448, 93.6845)
Luminance	0.5875 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63D9F3 #F37D63

analogous

#63F3C5 #63D9F3 #6391F3

triadic

#63D9F3 #F363D9 #D9F363

tetradic

#63D9F3 #C563F3 #F37D63 #91F363

square

#63D9F3 #C563F3 #F37D63 #91F363

split-complementary

#63D9F3 #F36391 #F3C563

monochromatic

#10AACC #2ACBEF #63D9F3 #9CE7F7 #D5F5FC

Accessibility & contrast

On white

1.65

#63D9F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.75

#63D9F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63D9F3

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63D9F3	#FFFFFF	#000000	##000000
##63D9F3	1.00	1.65	12.75	12.75
#FFFFFF	1.65	1.00	21.00	21.00
#000000	12.75	21.00	1.00	1.00
##000000	12.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6D3F5

Deuteranopia (green-blind)

#B1C3F3

Tritanopia (blue-blind)

#00E3E1

Achromatopsia (no color)

#CACACA

Design tokens & code

CSS

--color: #63d9f3;
/* rgb */ color: rgb(99, 217, 243);
/* oklch */ color: oklch(82.7% 0.111 214.5);

Tailwind

colors: {
  custom: {
    50: '#9ce5f7',
    500: '#63d9f3',
    950: '#000000',
  },
}

SCSS

$custom: #63d9f3;
$custom-light: #9ce5f7;
$custom-dark: #000000;

JSON

{
  "hex": "#63d9f3",
  "rgb": {
    "r": 99,
    "g": 217,
    "b": 243
  },
  "hsl": {
    "h": 190.833,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.82736,
    "c": 0.11146,
    "h": 214.5
  },
  "luminance": 0.58749
}

Semantic roles & 50–950 ramp

primary

#63D9F3

secondary

#C84D32

accent

#2C03E2

background

#FCFEFF

surface

#F6FCFE

border

#D0D5D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63D9F3

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

Preview Lab → · Contrast checker → · Palette generator →