#63A8EE#63A8EE

#63A8EE is a light, vivid cyan. Relative luminance 0.368; OKLCH L 71.5% C 0.125 H 250.3°. Best body text is #000000 at 8.37:1 contrast (WCAG AA passes).

Color values

HEX	#63A8EE
RGB	rgb(99, 168, 238)
HSL	hsl(210, 80%, 66%)
HSV	hsv(210, 58%, 93%)
CMYK	cmyk(58.4%, 29.4%, 0%, 6.7%)
CIE-LAB	lab(67.15, -1.47, -41.63)
CIE-LCH	lch(67.15, 41.66, 267.98°)
OKLab	oklab(71.54% -0.0421 -0.1173)
OKLCH	oklch(71.54% 0.125 250.3)
XYZ	xyz(34.5753, 36.8279, 86.1588)
Luminance	0.3683 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8EE #EEA963

analogous

#63EDEE #63A8EE #6363EE

triadic

#63A8EE #EE63A8 #A8EE63

tetradic

#63A8EE #EE63ED #EEA963 #63EE63

square

#63A8EE #EE63ED #EEA963 #63EE63

split-complementary

#63A8EE #EE6363 #EDEE63

monochromatic

#156BC2 #2C89E8 #63A8EE #9AC7F4 #D1E6FA

Accessibility & contrast

On white

2.51

#63A8EE on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.37

#63A8EE on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8EE

8.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8EE	#FFFFFF	#000000	##000000
##63A8EE	1.00	2.51	8.37	8.37
#FFFFFF	2.51	1.00	21.00	21.00
#000000	8.37	21.00	1.00	1.00
##000000	8.37	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8AABF1

Deuteranopia (green-blind)

#789DED

Tritanopia (blue-blind)

#00B8C1

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #63a8ee;
/* rgb */ color: rgb(99, 168, 238);
/* oklch */ color: oklch(71.5% 0.125 250.3);

Tailwind

colors: {
  custom: {
    50: '#9ac1f4',
    500: '#63a8ee',
    950: '#000000',
  },
}

SCSS

$custom: #63a8ee;
$custom-light: #9ac1f4;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8ee",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 238
  },
  "hsl": {
    "h": 210.216,
    "s": 80.347,
    "l": 66.078
  },
  "oklch": {
    "l": 0.71543,
    "c": 0.12459,
    "h": 250.3
  },
  "luminance": 0.36831
}

Semantic roles & 50–950 ramp

primary

#63A8EE

secondary

#EDD7C0

accent

#7409DD

background

#FAFBFE

surface

#F3F7FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A8EE

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

Preview Lab → · Contrast checker → · Palette generator →