#63C8E4#63C8E4

#63C8E4 is a light, moderate cyan. Relative luminance 0.496; OKLCH L 78.3% C 0.102 H 218.5°. Best body text is #000000 at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#63C8E4
RGB	rgb(99, 200, 228)
HSL	hsl(193, 70%, 64%)
HSV	hsv(193, 57%, 89%)
CMYK	cmyk(56.6%, 12.3%, 0%, 10.6%)
CIE-LAB	lab(75.80, -21.62, -22.84)
CIE-LCH	lch(75.80, 31.45, 226.57°)
OKLab	oklab(78.28% -0.0797 -0.0634)
OKLCH	oklch(78.28% 0.102 218.5)
XYZ	xyz(39.7979, 49.5588, 80.8522)
Luminance	0.4956 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8E4 #E47F63

analogous

#63E4C0 #63C8E4 #6388E4

triadic

#63C8E4 #E463C8 #C8E463

tetradic

#63C8E4 #C063E4 #E47F63 #88E463

square

#63C8E4 #C063E4 #E47F63 #88E463

split-complementary

#63C8E4 #E46388 #E4C063

monochromatic

#1E8FAE #2FB6DB #63C8E4 #97DAED #CBEDF6

Accessibility & contrast

On white

1.92

#63C8E4 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.91

#63C8E4 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8E4

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8E4	#FFFFFF	#000000	##000000
##63C8E4	1.00	1.92	10.91	10.91
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.91	21.00	1.00	1.00
##000000	10.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6C3E6

Deuteranopia (green-blind)

#A3B5E4

Tritanopia (blue-blind)

#00D2D1

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #63c8e4;
/* rgb */ color: rgb(99, 200, 228);
/* oklch */ color: oklch(78.3% 0.102 218.5);

Tailwind

colors: {
  custom: {
    50: '#9ad8ec',
    500: '#63c8e4',
    950: '#000000',
  },
}

SCSS

$custom: #63c8e4;
$custom-light: #9ad8ec;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8e4",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 228
  },
  "hsl": {
    "h": 193.023,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.78278,
    "c": 0.10186,
    "h": 218.5
  },
  "luminance": 0.49563
}

Semantic roles & 50–950 ramp

primary

#63C8E4

secondary

#E8C5BB

accent

#3D13D3

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C8E4

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

Preview Lab → · Contrast checker → · Palette generator →