#63C5EA#63C5EA

#63C5EA is a light, moderate cyan. Relative luminance 0.485; OKLCH L 77.8% C 0.106 H 225.4°. Best body text is #000000 at 10.71:1 contrast (WCAG AA passes).

Color values

HEX	#63C5EA
RGB	rgb(99, 197, 234)
HSL	hsl(196, 76%, 65%)
HSV	hsv(196, 58%, 92%)
CMYK	cmyk(57.7%, 15.8%, 0%, 8.2%)
CIE-LAB	lab(75.15, -18.34, -27.06)
CIE-LCH	lch(75.15, 32.69, 235.87°)
OKLab	oklab(77.83% -0.0743 -0.0753)
OKLCH	oklch(77.83% 0.106 225.4)
XYZ	xyz(39.9574, 48.5219, 85.0859)
Luminance	0.4853 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C5EA #EA8863

analogous

#63EACB #63C5EA #6382EA

triadic

#63C5EA #EA63C5 #C5EA63

tetradic

#63C5EA #CB63EA #EA8863 #82EA63

square

#63C5EA #CB63EA #EA8863 #82EA63

split-complementary

#63C5EA #EA6382 #EACB63

monochromatic

#198EBA #2DB1E3 #63C5EA #99D9F1 #CFEDF9

Accessibility & contrast

On white

1.96

#63C5EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.71

#63C5EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C5EA

10.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C5EA	#FFFFFF	#000000	##000000
##63C5EA	1.00	1.96	10.71	10.71
#FFFFFF	1.96	1.00	21.00	21.00
#000000	10.71	21.00	1.00	1.00
##000000	10.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B1C1EC

Deuteranopia (green-blind)

#9DB3EA

Tritanopia (blue-blind)

#00D0D1

Achromatopsia (no color)

#B9B9B9

Design tokens & code

CSS

--color: #63c5ea;
/* rgb */ color: rgb(99, 197, 234);
/* oklch */ color: oklch(77.8% 0.106 225.4);

Tailwind

colors: {
  custom: {
    50: '#9ad6f0',
    500: '#63c5ea',
    950: '#000000',
  },
}

SCSS

$custom: #63c5ea;
$custom-light: #9ad6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63c5ea",
  "rgb": {
    "r": 99,
    "g": 197,
    "b": 234
  },
  "hsl": {
    "h": 196.444,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.77832,
    "c": 0.10579,
    "h": 225.4
  },
  "luminance": 0.48526
}

Semantic roles & 50–950 ramp

primary

#63C5EA

secondary

#EBCABE

accent

#450DD8

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C5EA

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

Preview Lab → · Contrast checker → · Palette generator →