#63CEFB#63CEFB

#63CEFB is a light, moderate cyan. Relative luminance 0.538; OKLCH L 80.6% C 0.117 H 228.4°. Best body text is #000000 at 11.75:1 contrast (WCAG AA passes).

Color values

HEX	#63CEFB
RGB	rgb(99, 206, 251)
HSL	hsl(198, 95%, 69%)
HSV	hsv(198, 61%, 98%)
CMYK	cmyk(60.6%, 17.9%, 0%, 1.6%)
CIE-LAB	lab(78.32, -17.94, -31.31)
CIE-LCH	lch(78.32, 36.09, 240.19°)
OKLab	oklab(80.56% -0.0776 -0.0874)
OKLCH	oklch(80.56% 0.117 228.4)
XYZ	xyz(44.6227, 53.7558, 99.2724)
Luminance	0.5376 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CEFB #FB9063

analogous

#63FBDC #63CEFB #6382FB

triadic

#63CEFB #FB63CE #CEFB63

tetradic

#63CEFB #DC63FB #FB9063 #82FB63

square

#63CEFB #DC63FB #FB9063 #82FB63

split-complementary

#63CEFB #FB6382 #FBDC63

monochromatic

#069EDE #27BBF9 #63CEFB #9FE1FD #DAF3FE

Accessibility & contrast

On white

1.79

#63CEFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.75

#63CEFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CEFB

11.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CEFB	#FFFFFF	#000000	##000000
##63CEFB	1.00	1.79	11.75	11.75
#FFFFFF	1.79	1.00	21.00	21.00
#000000	11.75	21.00	1.00	1.00
##000000	11.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B7CBFD

Deuteranopia (green-blind)

#A1BBFA

Tritanopia (blue-blind)

#00DBDD

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #63cefb;
/* rgb */ color: rgb(99, 206, 251);
/* oklch */ color: oklch(80.6% 0.117 228.4);

Tailwind

colors: {
  custom: {
    50: '#9cddfc',
    500: '#63cefb',
    950: '#000000',
  },
}

SCSS

$custom: #63cefb;
$custom-light: #9cddfc;
$custom-dark: #000000;

JSON

{
  "hex": "#63cefb",
  "rgb": {
    "r": 99,
    "g": 206,
    "b": 251
  },
  "hsl": {
    "h": 197.763,
    "s": 95,
    "l": 68.627
  },
  "oklch": {
    "l": 0.80563,
    "c": 0.1169,
    "h": 228.4
  },
  "luminance": 0.5376
}

Semantic roles & 50–950 ramp

primary

#63CEFB

secondary

#D55F2D

accent

#4400E6

background

#FCFEFF

surface

#F6FCFF

border

#D0D5D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CEFB

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

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