#63CBF4#63CBF4

#63CBF4 is a light, moderate cyan. Relative luminance 0.519; OKLCH L 79.6% C 0.112 H 226.6°. Best body text is #000000 at 11.38:1 contrast (WCAG AA passes).

Color values

HEX	#63CBF4
RGB	rgb(99, 203, 244)
HSL	hsl(197, 87%, 67%)
HSV	hsv(197, 59%, 96%)
CMYK	cmyk(59.4%, 16.8%, 0%, 4.3%)
CIE-LAB	lab(77.22, -18.48, -29.27)
CIE-LCH	lch(77.22, 34.61, 237.73°)
OKLab	oklab(79.6% -0.077 -0.0816)
OKLCH	oklch(79.6% 0.112 226.6)
XYZ	xyz(42.8243, 51.8920, 93.3297)
Luminance	0.5190 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63CBF4 #F48C63

analogous

#63F4D5 #63CBF4 #6382F4

triadic

#63CBF4 #F463CB #CBF463

tetradic

#63CBF4 #D563F4 #F48C63 #82F463

square

#63CBF4 #D563F4 #F48C63 #82F463

split-complementary

#63CBF4 #F46382 #F4D563

monochromatic

#0F98CE #2AB8F0 #63CBF4 #9CDEF8 #D5F1FC

Accessibility & contrast

On white

1.85

#63CBF4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.38

#63CBF4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63CBF4

11.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63CBF4	#FFFFFF	#000000	##000000
##63CBF4	1.00	1.85	11.38	11.38
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.38	21.00	1.00	1.00
##000000	11.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C7F6

Deuteranopia (green-blind)

#A0B8F4

Tritanopia (blue-blind)

#00D7D8

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #63cbf4;
/* rgb */ color: rgb(99, 203, 244);
/* oklch */ color: oklch(79.6% 0.112 226.6);

Tailwind

colors: {
  custom: {
    50: '#9bdbf7',
    500: '#63cbf4',
    950: '#000000',
  },
}

SCSS

$custom: #63cbf4;
$custom-light: #9bdbf7;
$custom-dark: #000000;

JSON

{
  "hex": "#63cbf4",
  "rgb": {
    "r": 99,
    "g": 203,
    "b": 244
  },
  "hsl": {
    "h": 196.966,
    "s": 86.826,
    "l": 67.255
  },
  "oklch": {
    "l": 0.79599,
    "c": 0.11218,
    "h": 226.6
  },
  "luminance": 0.51896
}

Semantic roles & 50–950 ramp

primary

#63CBF4

secondary

#CA5C31

accent

#4202E3

background

#FCFEFF

surface

#F6FBFE

border

#D0D4D6

text

#0F1517

muted

#808485

Preview Lab

Preview with #63CBF4

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

Preview Lab → · Contrast checker → · Palette generator →