#63A4EA#63A4EA

#63A4EA is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.5% C 0.123 H 251.6°. Best body text is #000000 at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#63A4EA
RGB	rgb(99, 164, 234)
HSL	hsl(211, 76%, 65%)
HSV	hsv(211, 58%, 92%)
CMYK	cmyk(57.7%, 29.9%, 0%, 8.2%)
CIE-LAB	lab(65.86, -0.47, -41.46)
CIE-LCH	lch(65.86, 41.46, 269.35°)
OKLab	oklab(70.47% -0.0389 -0.1168)
OKLCH	oklch(70.47% 0.123 251.6)
XYZ	xyz(33.2670, 35.1412, 82.8558)
Luminance	0.3514 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A4EA #EAA963

analogous

#63E8EA #63A4EA #6563EA

triadic

#63A4EA #EA63A4 #A4EA63

tetradic

#63A4EA #EA63E8 #EAA963 #63EA65

square

#63A4EA #EA63E8 #EAA963 #63EA65

split-complementary

#63A4EA #EA6563 #E8EA63

monochromatic

#1966BA #2D85E3 #63A4EA #99C3F1 #CFE3F9

Accessibility & contrast

On white

2.62

#63A4EA on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.03

#63A4EA on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4EA

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A4EA	#FFFFFF	#000000	##000000
##63A4EA	1.00	2.62	8.03	8.03
#FFFFFF	2.62	1.00	21.00	21.00
#000000	8.03	21.00	1.00	1.00
##000000	8.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#87A7ED

Deuteranopia (green-blind)

#759AE9

Tritanopia (blue-blind)

#00B4BD

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a4ea;
/* rgb */ color: rgb(99, 164, 234);
/* oklch */ color: oklch(70.5% 0.123 251.6);

Tailwind

colors: {
  custom: {
    50: '#99bef1',
    500: '#63a4ea',
    950: '#000000',
  },
}

SCSS

$custom: #63a4ea;
$custom-light: #99bef1;
$custom-dark: #000000;

JSON

{
  "hex": "#63a4ea",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 234
  },
  "hsl": {
    "h": 211.111,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.70472,
    "c": 0.12312,
    "h": 251.6
  },
  "luminance": 0.35144
}

Semantic roles & 50–950 ramp

primary

#63A4EA

secondary

#EBD5BE

accent

#770DD8

background

#F9FBFE

surface

#F2F6FD

border

#CCD0D5

text

#0F1216

muted

#7E8184

Preview Lab

Preview with #63A4EA

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

Preview Lab → · Contrast checker → · Palette generator →