#63C1EF#63C1EF

#63C1EF is a light, moderate cyan. Relative luminance 0.470; OKLCH L 77.1% C 0.111 H 231.9°. Best body text is #000000 at 10.41:1 contrast (WCAG AA passes).

Color values

HEX	#63C1EF
RGB	rgb(99, 193, 239)
HSL	hsl(200, 81%, 66%)
HSV	hsv(200, 59%, 94%)
CMYK	cmyk(58.6%, 19.2%, 0%, 6.3%)
CIE-LAB	lab(74.20, -14.77, -31.21)
CIE-LCH	lch(74.20, 34.53, 244.68°)
OKLab	oklab(77.14% -0.0683 -0.0871)
OKLCH	oklch(77.14% 0.111 231.9)
XYZ	xyz(39.7896, 47.0208, 88.6236)
Luminance	0.4703 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63C1EF #EF9163

analogous

#63EFD7 #63C1EF #637BEF

triadic

#63C1EF #EF63C1 #C1EF63

tetradic

#63C1EF #D763EF #EF9163 #7BEF63

square

#63C1EF #D763EF #EF9163 #7BEF63

split-complementary

#63C1EF #EF637B #EFD763

monochromatic

#148AC4 #2BABE9 #63C1EF #9BD7F5 #D2EDFA

Accessibility & contrast

On white

2.02

#63C1EF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.41

#63C1EF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63C1EF

10.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63C1EF	#FFFFFF	#000000	##000000
##63C1EF	1.00	2.02	10.41	10.41
#FFFFFF	2.02	1.00	21.00	21.00
#000000	10.41	21.00	1.00	1.00
##000000	10.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AABFF1

Deuteranopia (green-blind)

#97B0EE

Tritanopia (blue-blind)

#00CED0

Achromatopsia (no color)

#B6B6B6

Design tokens & code

CSS

--color: #63c1ef;
/* rgb */ color: rgb(99, 193, 239);
/* oklch */ color: oklch(77.1% 0.111 231.9);

Tailwind

colors: {
  custom: {
    50: '#9ad3f4',
    500: '#63c1ef',
    950: '#000000',
  },
}

SCSS

$custom: #63c1ef;
$custom-light: #9ad3f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63c1ef",
  "rgb": {
    "r": 99,
    "g": 193,
    "b": 239
  },
  "hsl": {
    "h": 199.714,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.77136,
    "c": 0.11072,
    "h": 231.9
  },
  "luminance": 0.47025
}

Semantic roles & 50–950 ramp

primary

#63C1EF

secondary

#EECFC0

accent

#4E08DE

background

#FAFCFE

surface

#F4F9FD

border

#CED2D5

text

#0F1417

muted

#7F8285

Preview Lab

Preview with #63C1EF

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

Preview Lab → · Contrast checker → · Palette generator →