#63C8E9#63C8E9

#63C8E9 is a light, moderate cyan. Relative luminance 0.498; OKLCH L 78.5% C 0.105 H 222.0°. Best body text is #000000 at 10.97:1 contrast (WCAG AA passes).

Color values

HEX	#63C8E9
RGB	rgb(99, 200, 233)
HSL	hsl(195, 75%, 65%)
HSV	hsv(195, 58%, 91%)
CMYK	cmyk(57.5%, 14.2%, 0%, 8.6%)
CIE-LAB	lab(75.97, -20.17, -25.27)
CIE-LCH	lch(75.97, 32.33, 231.40°)
OKLab	oklab(78.47% -0.0779 -0.0702)
OKLCH	oklch(78.47% 0.105 222)
XYZ	xyz(40.5021, 49.8405, 84.5607)
Luminance	0.4984 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C8E9 #E98463

analogous

#63E9C7 #63C8E9 #6385E9

triadic

#63C8E9 #E963C8 #C8E963

tetradic

#63C8E9 #C763E9 #E98463 #85E963

square

#63C8E9 #C763E9 #E98463 #85E963

split-complementary

#63C8E9 #E96385 #E9C763

monochromatic

#1A91B8 #2DB5E1 #63C8E9 #99DBF1 #CEEEF8

Accessibility & contrast

On white

1.91

#63C8E9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.97

#63C8E9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C8E9

10.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C8E9	#FFFFFF	#000000	##000000
##63C8E9	1.00	1.91	10.97	10.97
#FFFFFF	1.91	1.00	21.00	21.00
#000000	10.97	21.00	1.00	1.00
##000000	10.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5C4EB

Deuteranopia (green-blind)

#A1B5E9

Tritanopia (blue-blind)

#00D3D2

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #63c8e9;
/* rgb */ color: rgb(99, 200, 233);
/* oklch */ color: oklch(78.5% 0.105 222.0);

Tailwind

colors: {
  custom: {
    50: '#9ad8f0',
    500: '#63c8e9',
    950: '#000000',
  },
}

SCSS

$custom: #63c8e9;
$custom-light: #9ad8f0;
$custom-dark: #000000;

JSON

{
  "hex": "#63c8e9",
  "rgb": {
    "r": 99,
    "g": 200,
    "b": 233
  },
  "hsl": {
    "h": 194.776,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.78474,
    "c": 0.10486,
    "h": 222
  },
  "luminance": 0.49844
}

Semantic roles & 50–950 ramp

primary

#63C8E9

secondary

#EBC8BD

accent

#400ED7

background

#FAFDFE

surface

#F3FAFD

border

#CDD3D5

text

#0F1416

muted

#7F8384

Preview Lab

Preview with #63C8E9

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

Preview Lab → · Contrast checker → · Palette generator →