#63C4EB#63C4EB

#63C4EB is a light, moderate cyan. Relative luminance 0.481; OKLCH L 77.6% C 0.107 H 226.9°. Best body text is #000000 at 10.63:1 contrast (WCAG AA passes).

Color values

HEX	#63C4EB
RGB	rgb(99, 196, 235)
HSL	hsl(197, 77%, 65%)
HSV	hsv(197, 58%, 92%)
CMYK	cmyk(57.9%, 16.6%, 0%, 7.8%)
CIE-LAB	lab(74.90, -17.53, -27.98)
CIE-LCH	lch(74.90, 33.01, 237.93°)
OKLab	oklab(77.65% -0.0729 -0.0779)
OKLCH	oklch(77.65% 0.107 226.9)
XYZ	xyz(39.8751, 48.1269, 85.7692)
Luminance	0.4813 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C4EB #EB8A63

analogous

#63EBCE #63C4EB #6380EB

triadic

#63C4EB #EB63C4 #C4EB63

tetradic

#63C4EB #CE63EB #EB8A63 #80EB63

square

#63C4EB #CE63EB #EB8A63 #80EB63

split-complementary

#63C4EB #EB6380 #EBCE63

monochromatic

#188DBC #2DAFE4 #63C4EB #99D9F2 #CFEDF9

Accessibility & contrast

On white

1.98

#63C4EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.63

#63C4EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C4EB

10.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C4EB	#FFFFFF	#000000	##000000
##63C4EB	1.00	1.98	10.63	10.63
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.63	21.00	1.00	1.00
##000000	10.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AFC1ED

Deuteranopia (green-blind)

#9CB2EB

Tritanopia (blue-blind)

#00CFD1

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #63c4eb;
/* rgb */ color: rgb(99, 196, 235);
/* oklch */ color: oklch(77.6% 0.107 226.9);

Tailwind

colors: {
  custom: {
    50: '#9ad6f1',
    500: '#63c4eb',
    950: '#000000',
  },
}

SCSS

$custom: #63c4eb;
$custom-light: #9ad6f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63c4eb",
  "rgb": {
    "r": 99,
    "g": 196,
    "b": 235
  },
  "hsl": {
    "h": 197.206,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.77646,
    "c": 0.1067,
    "h": 226.9
  },
  "luminance": 0.48131
}

Semantic roles & 50–950 ramp

primary

#63C4EB

secondary

#ECCBBE

accent

#470CDA

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C4EB

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

Preview Lab → · Contrast checker → · Palette generator →