#63A4EC#63A4EC

#63A4EC is a light, vivid cyan. Relative luminance 0.353; OKLCH L 70.6% C 0.126 H 252.2°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#63A4EC
RGB	rgb(99, 164, 236)
HSL	hsl(212, 78%, 66%)
HSV	hsv(212, 58%, 93%)
CMYK	cmyk(58.1%, 30.5%, 0%, 7.5%)
CIE-LAB	lab(65.95, 0.16, -42.41)
CIE-LCH	lch(65.95, 42.41, 270.22°)
OKLab	oklab(70.57% -0.0384 -0.1196)
OKLCH	oklch(70.57% 0.126 252.2)
XYZ	xyz(33.5559, 35.2567, 84.3775)
Luminance	0.3526 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A4EC #ECAB63

analogous

#63E8EC #63A4EC #6663EC

triadic

#63A4EC #EC63A4 #A4EC63

tetradic

#63A4EC #EC63E8 #ECAB63 #63EC66

square

#63A4EC #EC63E8 #ECAB63 #63EC66

split-complementary

#63A4EC #EC6663 #E8EC63

monochromatic

#1766BE #2C84E5 #63A4EC #9AC4F3 #D0E4F9

Accessibility & contrast

On white

2.61

#63A4EC on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#63A4EC on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A4EC

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A4EC	#FFFFFF	#000000	##000000
##63A4EC	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#86A8EF

Deuteranopia (green-blind)

#749AEB

Tritanopia (blue-blind)

#00B5BE

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a4ec;
/* rgb */ color: rgb(99, 164, 236);
/* oklch */ color: oklch(70.6% 0.126 252.2);

Tailwind

colors: {
  custom: {
    50: '#99bef2',
    500: '#63a4ec',
    950: '#000000',
  },
}

SCSS

$custom: #63a4ec;
$custom-light: #99bef2;
$custom-dark: #000000;

JSON

{
  "hex": "#63a4ec",
  "rgb": {
    "r": 99,
    "g": 164,
    "b": 236
  },
  "hsl": {
    "h": 211.533,
    "s": 78.286,
    "l": 65.686
  },
  "oklch": {
    "l": 0.70572,
    "c": 0.12558,
    "h": 252.2
  },
  "luminance": 0.3526
}

Semantic roles & 50–950 ramp

primary

#63A4EC

secondary

#ECD7BF

accent

#780BDB

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A4EC

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

Preview Lab → · Contrast checker → · Palette generator →