#63C0EE#63C0EE

#63C0EE is a light, moderate cyan. Relative luminance 0.465; OKLCH L 76.9% C 0.110 H 232.2°. Best body text is #000000 at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#63C0EE
RGB	rgb(99, 192, 238)
HSL	hsl(200, 80%, 66%)
HSV	hsv(200, 58%, 93%)
CMYK	cmyk(58.4%, 19.3%, 0%, 6.7%)
CIE-LAB	lab(73.88, -14.54, -31.17)
CIE-LCH	lch(73.88, 34.39, 244.98°)
OKLab	oklab(76.87% -0.0676 -0.087)
OKLCH	oklch(76.87% 0.11 232.2)
XYZ	xyz(39.4219, 46.5212, 87.7743)
Luminance	0.4652 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C0EE #EE9163

analogous

#63EED6 #63C0EE #637AEE

triadic

#63C0EE #EE63C0 #C0EE63

tetradic

#63C0EE #D663EE #EE9163 #7AEE63

square

#63C0EE #D663EE #EE9163 #7AEE63

split-complementary

#63C0EE #EE637A #EED663

monochromatic

#1588C2 #2CAAE8 #63C0EE #9AD6F4 #D1EDFA

Accessibility & contrast

On white

2.04

#63C0EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.31

#63C0EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C0EE

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C0EE	#FFFFFF	#000000	##000000
##63C0EE	1.00	2.04	10.31	10.31
#FFFFFF	2.04	1.00	21.00	21.00
#000000	10.31	21.00	1.00	1.00
##000000	10.31	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A9BEF0

Deuteranopia (green-blind)

#96AFED

Tritanopia (blue-blind)

#00CCCF

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #63c0ee;
/* rgb */ color: rgb(99, 192, 238);
/* oklch */ color: oklch(76.9% 0.110 232.2);

Tailwind

colors: {
  custom: {
    50: '#9ad3f3',
    500: '#63c0ee',
    950: '#000000',
  },
}

SCSS

$custom: #63c0ee;
$custom-light: #9ad3f3;
$custom-dark: #000000;

JSON

{
  "hex": "#63c0ee",
  "rgb": {
    "r": 99,
    "g": 192,
    "b": 238
  },
  "hsl": {
    "h": 199.856,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.76869,
    "c": 0.11018,
    "h": 232.2
  },
  "luminance": 0.46525
}

Semantic roles & 50–950 ramp

primary

#63C0EE

secondary

#EDCFC0

accent

#4F09DD

background

#FAFCFE

surface

#F3F9FD

border

#CDD2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #63C0EE

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

Preview Lab → · Contrast checker → · Palette generator →