#63C8F0#63C8F0

#63C8F0 is a light, moderate cyan. Relative luminance 0.503; OKLCH L 78.8% C 0.110 H 226.7°. Best body text is #000000 at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#63C8F0
RGB	rgb(99, 200, 240)
HSL	hsl(197, 82%, 66%)
HSV	hsv(197, 59%, 94%)
CMYK	cmyk(58.8%, 16.7%, 0%, 5.9%)
CIE-LAB	lab(76.22, -18.12, -28.65)
CIE-LCH	lch(76.22, 33.90, 237.69°)
OKLab	oklab(78.76% -0.0753 -0.0798)
OKLCH	oklch(78.76% 0.11 226.7)
XYZ	xyz(41.5219, 50.2484, 89.9319)
Luminance	0.5025 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8F0 #F08B63

analogous

#63F0D1 #63C8F0 #6382F0

triadic

#63C8F0 #F063C8 #C8F063

tetradic

#63C8F0 #D163F0 #F08B63 #82F063

square

#63C8F0 #D163F0 #F08B63 #82F063

split-complementary

#63C8F0 #F06382 #F0D163

monochromatic

#1393C6 #2BB4EB #63C8F0 #9BDCF5 #D3EFFB

Accessibility & contrast

On white

1.90

#63C8F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.05

#63C8F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8F0

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8F0	#FFFFFF	#000000	##000000
##63C8F0	1.00	1.90	11.05	11.05
#FFFFFF	1.90	1.00	21.00	21.00
#000000	11.05	21.00	1.00	1.00
##000000	11.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B3C4F2

Deuteranopia (green-blind)

#9EB5F0

Tritanopia (blue-blind)

#00D4D5

Achromatopsia (no color)

#BCBCBC

Design tokens & code

CSS

--color: #63c8f0;
/* rgb */ color: rgb(99, 200, 240);
/* oklch */ color: oklch(78.8% 0.110 226.7);

Tailwind

colors: {
  custom: {
    50: '#9bd8f5',
    500: '#63c8f0',
    950: '#000000',
  },
}

SCSS

$custom: #63c8f0;
$custom-light: #9bd8f5;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8f0",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 240
  },
  "hsl": {
    "h": 197.021,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.78757,
    "c": 0.10974,
    "h": 226.7
  },
  "luminance": 0.50252
}

Semantic roles & 50–950 ramp

primary

#63C8F0

secondary

#C35D34

accent

#4407DF

background

#FCFEFF

surface

#F5FBFE

border

#CFD4D6

text

#0F1417

muted

#808385

Preview Lab

Preview with #63C8F0

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

Preview Lab → · Contrast checker → · Palette generator →