#63A3F0#63A3F0

#63A3F0 is a light, vivid cyan. Relative luminance 0.351; OKLCH L 70.6% C 0.131 H 254.0°. Best body text is #000000 at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#63A3F0
RGB	rgb(99, 163, 240)
HSL	hsl(213, 82%, 66%)
HSV	hsv(213, 59%, 94%)
CMYK	cmyk(58.8%, 32.1%, 0%, 5.9%)
CIE-LAB	lab(65.85, 2.00, -44.75)
CIE-LCH	lch(65.85, 44.80, 272.55°)
OKLab	oklab(70.56% -0.0362 -0.1264)
OKLCH	oklch(70.56% 0.131 254)
XYZ	xyz(33.9653, 35.1353, 87.4130)
Luminance	0.3514 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A3F0 #F0B063

analogous

#63EAF0 #63A3F0 #6A63F0

triadic

#63A3F0 #F063A3 #A3F063

tetradic

#63A3F0 #F063EA #F0B063 #63F06A

square

#63A3F0 #F063EA #F0B063 #63F06A

split-complementary

#63A3F0 #F06A63 #EAF063

monochromatic

#1364C6 #2B82EB #63A3F0 #9BC4F5 #D3E5FB

Accessibility & contrast

On white

2.62

#63A3F0 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.03

#63A3F0 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A3F0

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A3F0	#FFFFFF	#000000	##000000
##63A3F0	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)

#83A7F3

Deuteranopia (green-blind)

#709AEE

Tritanopia (blue-blind)

#00B5BF

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #63a3f0;
/* rgb */ color: rgb(99, 163, 240);
/* oklch */ color: oklch(70.6% 0.131 254.0);

Tailwind

colors: {
  custom: {
    50: '#9abdf5',
    500: '#63a3f0',
    950: '#000000',
  },
}

SCSS

$custom: #63a3f0;
$custom-light: #9abdf5;
$custom-dark: #000000;

JSON

{
  "hex": "#63a3f0",
  "rgb": {
    "r": 99,
    "g": 163,
    "b": 240
  },
  "hsl": {
    "h": 212.766,
    "s": 82.456,
    "l": 66.471
  },
  "oklch": {
    "l": 0.70558,
    "c": 0.13147,
    "h": 254
  },
  "luminance": 0.35138
}

Semantic roles & 50–950 ramp

primary

#63A3F0

secondary

#EEDAC1

accent

#7D07DF

background

#FAFBFF

surface

#F3F6FE

border

#CDD0D6

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A3F0

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

Preview Lab → · Contrast checker → · Palette generator →