#63B6EC#63B6EC

#63B6EC is a light, moderate cyan. Relative luminance 0.422; OKLCH L 74.5% C 0.113 H 239.2°. Best body text is #000000 at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#63B6EC
RGB	rgb(99, 182, 236)
HSL	hsl(204, 78%, 66%)
HSV	hsv(204, 58%, 93%)
CMYK	cmyk(58.1%, 22.9%, 0%, 7.5%)
CIE-LAB	lab(70.98, -9.81, -34.57)
CIE-LCH	lch(70.98, 35.93, 254.15°)
OKLab	oklab(74.54% -0.0576 -0.0968)
OKLCH	oklch(74.54% 0.113 239.2)
XYZ	xyz(37.0082, 42.1613, 85.5283)
Luminance	0.4217 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63B6EC #EC9963

analogous

#63ECDE #63B6EC #6371EC

triadic

#63B6EC #EC63B6 #B6EC63

tetradic

#63B6EC #DE63EC #EC9963 #71EC63

square

#63B6EC #DE63EC #EC9963 #71EC63

split-complementary

#63B6EC #EC6371 #ECDE63

monochromatic

#177CBE #2C9CE5 #63B6EC #9AD0F3 #D0E9F9

Accessibility & contrast

On white

2.23

#63B6EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.43

#63B6EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63B6EC

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63B6EC	#FFFFFF	#000000	##000000
##63B6EC	1.00	2.23	9.43	9.43
#FFFFFF	2.23	1.00	21.00	21.00
#000000	9.43	21.00	1.00	1.00
##000000	9.43	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#9EB6EF

Deuteranopia (green-blind)

#8BA8EB

Tritanopia (blue-blind)

#00C4C8

Achromatopsia (no color)

#AEAEAE

Design tokens & code

CSS

--color: #63b6ec;
/* rgb */ color: rgb(99, 182, 236);
/* oklch */ color: oklch(74.5% 0.113 239.2);

Tailwind

colors: {
  custom: {
    50: '#9acbf2',
    500: '#63b6ec',
    950: '#000000',
  },
}

SCSS

$custom: #63b6ec;
$custom-light: #9acbf2;
$custom-dark: #000000;

JSON

{
  "hex": "#63b6ec",
  "rgb": {
    "r": 99,
    "g": 182,
    "b": 236
  },
  "hsl": {
    "h": 203.65,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.7454,
    "c": 0.11264,
    "h": 239.2
  },
  "luminance": 0.42165
}

Semantic roles & 50–950 ramp

primary

#63B6EC

secondary

#ECD1BF

accent

#5D0BDB

background

#FAFCFE

surface

#F3F8FD

border

#CDD1D5

text

#0F1317

muted

#7F8285

Preview Lab

Preview with #63B6EC

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

Preview Lab → · Contrast checker → · Palette generator →