#63A8EB#63A8EB

#63A8EB is a light, vivid cyan. Relative luminance 0.367; OKLCH L 71.4% C 0.121 H 249.2°. Best body text is #000000 at 8.33:1 contrast (WCAG AA passes).

Color values

HEX	#63A8EB
RGB	rgb(99, 168, 235)
HSL	hsl(210, 77%, 65%)
HSV	hsv(210, 58%, 92%)
CMYK	cmyk(57.9%, 28.5%, 0%, 7.8%)
CIE-LAB	lab(67.02, -2.41, -40.19)
CIE-LCH	lch(67.02, 40.27, 266.57°)
OKLab	oklab(71.4% -0.0429 -0.1131)
OKLCH	oklch(71.4% 0.121 249.2)
XYZ	xyz(34.1382, 36.6530, 83.8569)
Luminance	0.3666 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A8EB #EBA663

analogous

#63EBEA #63A8EB #6364EB

triadic

#63A8EB #EB63A8 #A8EB63

tetradic

#63A8EB #EA63EB #EBA663 #64EB63

square

#63A8EB #EA63EB #EBA663 #64EB63

split-complementary

#63A8EB #EB6364 #EBEA63

monochromatic

#186BBC #2D8AE4 #63A8EB #99C6F2 #CFE5F9

Accessibility & contrast

On white

2.52

#63A8EB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.33

#63A8EB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A8EB

8.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A8EB	#FFFFFF	#000000	##000000
##63A8EB	1.00	2.52	8.33	8.33
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.33	21.00	1.00	1.00
##000000	8.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#8CAAEE

Deuteranopia (green-blind)

#7A9DEA

Tritanopia (blue-blind)

#00B8BF

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #63a8eb;
/* rgb */ color: rgb(99, 168, 235);
/* oklch */ color: oklch(71.4% 0.121 249.2);

Tailwind

colors: {
  custom: {
    50: '#99c1f1',
    500: '#63a8eb',
    950: '#000000',
  },
}

SCSS

$custom: #63a8eb;
$custom-light: #99c1f1;
$custom-dark: #000000;

JSON

{
  "hex": "#63a8eb",
  "rgb": {
    "r": 99,
    "g": 168,
    "b": 235
  },
  "hsl": {
    "h": 209.559,
    "s": 77.273,
    "l": 65.49
  },
  "oklch": {
    "l": 0.71396,
    "c": 0.12099,
    "h": 249.2
  },
  "luminance": 0.36656
}

Semantic roles & 50–950 ramp

primary

#63A8EB

secondary

#ECD5BE

accent

#710CDA

background

#F9FBFE

surface

#F2F7FD

border

#CCD0D5

text

#0F1217

muted

#7E8185

Preview Lab

Preview with #63A8EB

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

Preview Lab → · Contrast checker → · Palette generator →