#63CBF5#63CBF5

#63CBF5 is a light, moderate cyan. Relative luminance 0.520; OKLCH L 79.6% C 0.113 H 227.3°. Best body text is #000000 at 11.39:1 contrast (WCAG AA passes).

Color values

HEX	#63CBF5
RGB	rgb(99, 203, 245)
HSL	hsl(197, 88%, 67%)
HSV	hsv(197, 60%, 96%)
CMYK	cmyk(59.6%, 17.1%, 0%, 3.9%)
CIE-LAB	lab(77.25, -18.18, -29.75)
CIE-LCH	lch(77.25, 34.86, 238.56°)
OKLab	oklab(79.64% -0.0766 -0.0829)
OKLCH	oklch(79.64% 0.113 227.3)
XYZ	xyz(42.9765, 51.9529, 94.1315)
Luminance	0.5196 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBF5 #F58D63

analogous

#63F5D6 #63CBF5 #6382F5

triadic

#63CBF5 #F563CB #CBF563

tetradic

#63CBF5 #D663F5 #F58D63 #82F563

square

#63CBF5 #D663F5 #F58D63 #82F563

split-complementary

#63CBF5 #F56382 #F5D663

monochromatic

#0D98D0 #29B8F1 #63CBF5 #9DDEF9 #D6F1FC

Accessibility & contrast

On white

1.84

#63CBF5 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.39

#63CBF5 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBF5

11.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBF5	#FFFFFF	#000000	##000000
##63CBF5	1.00	1.84	11.39	11.39
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.39	21.00	1.00	1.00
##000000	11.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C8F7

Deuteranopia (green-blind)

#A0B8F4

Tritanopia (blue-blind)

#00D7D9

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63cbf5;
/* rgb */ color: rgb(99, 203, 245);
/* oklch */ color: oklch(79.6% 0.113 227.3);

Tailwind

colors: {
  custom: {
    50: '#9cdbf8',
    500: '#63cbf5',
    950: '#000000',
  },
}

SCSS

$custom: #63cbf5;
$custom-light: #9cdbf8;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbf5",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 245
  },
  "hsl": {
    "h": 197.26,
    "s": 87.952,
    "l": 67.451
  },
  "oklch": {
    "l": 0.7964,
    "c": 0.11293,
    "h": 227.3
  },
  "luminance": 0.51957
}

Semantic roles & 50–950 ramp

primary

#63CBF5

secondary

#CC5D30

accent

#4201E5

background

#FCFEFF

surface

#F6FBFF

border

#D0D4D7

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CBF5

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

Preview Lab → · Contrast checker → · Palette generator →