#63C3ED#63C3ED

#63C3ED is a light, moderate cyan. Relative luminance 0.478; OKLCH L 77.5% C 0.108 H 229.0°. Best body text is #000000 at 10.56:1 contrast (WCAG AA passes).

Color values

HEX	#63C3ED
RGB	rgb(99, 195, 237)
HSL	hsl(198, 79%, 66%)
HSV	hsv(198, 58%, 93%)
CMYK	cmyk(58.2%, 17.7%, 0%, 7.1%)
CIE-LAB	lab(74.69, -16.41, -29.38)
CIE-LCH	lch(74.69, 33.65, 240.81°)
OKLab	oklab(77.5% -0.0711 -0.0819)
OKLCH	oklch(77.5% 0.108 229)
XYZ	xyz(39.9409, 47.7935, 87.2245)
Luminance	0.4780 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C3ED #ED8D63

analogous

#63EDD2 #63C3ED #637EED

triadic

#63C3ED #ED63C3 #C3ED63

tetradic

#63C3ED #D263ED #ED8D63 #7EED63

square

#63C3ED #D263ED #ED8D63 #7EED63

split-complementary

#63C3ED #ED637E #EDD263

monochromatic

#168CC0 #2CAEE7 #63C3ED #9AD8F3 #D1EDFA

Accessibility & contrast

On white

1.99

#63C3ED on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.56

#63C3ED on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C3ED

10.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C3ED	#FFFFFF	#000000	##000000
##63C3ED	1.00	1.99	10.56	10.56
#FFFFFF	1.99	1.00	21.00	21.00
#000000	10.56	21.00	1.00	1.00
##000000	10.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#ADC0EF

Deuteranopia (green-blind)

#9AB1EC

Tritanopia (blue-blind)

#00CFD1

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c3ed;
/* rgb */ color: rgb(99, 195, 237);
/* oklch */ color: oklch(77.5% 0.108 229.0);

Tailwind

colors: {
  custom: {
    50: '#9ad5f3',
    500: '#63c3ed',
    950: '#000000',
  },
}

SCSS

$custom: #63c3ed;
$custom-light: #9ad5f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63c3ed",
  "rgb": {
    "r": 99,
    "g": 195,
    "b": 237
  },
  "hsl": {
    "h": 198.261,
    "s": 79.31,
    "l": 65.882
  },
  "oklch": {
    "l": 0.77503,
    "c": 0.10847,
    "h": 229
  },
  "luminance": 0.47797
}

Semantic roles & 50–950 ramp

primary

#63C3ED

secondary

#EDCDBF

accent

#4A0ADC

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1417

muted

#7F8385

Preview Lab

Preview with #63C3ED

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

Preview Lab → · Contrast checker → · Palette generator →