#63A5F3#63A5F3

#63A5F3 is a light, vivid cyan. Relative luminance 0.360; OKLCH L 71.1% C 0.133 H 253.7°. Best body text is #000000 at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#63A5F3
RGB	rgb(99, 165, 243)
HSL	hsl(213, 86%, 67%)
HSV	hsv(213, 59%, 95%)
CMYK	cmyk(59.3%, 32.1%, 0%, 4.7%)
CIE-LAB	lab(66.54, 1.81, -45.31)
CIE-LCH	lch(66.54, 45.35, 272.29°)
OKLab	oklab(71.14% -0.0375 -0.128)
OKLCH	oklch(71.14% 0.133 253.7)
XYZ	xyz(34.7726, 36.0309, 89.8988)
Luminance	0.3603 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#63A5F3 #F3B163

analogous

#63EDF3 #63A5F3 #6963F3

triadic

#63A5F3 #F363A5 #A5F363

tetradic

#63A5F3 #F363ED #F3B163 #63F369

square

#63A5F3 #F363ED #F3B163 #63F369

split-complementary

#63A5F3 #F36963 #EDF363

monochromatic

#1066CC #2A84EF #63A5F3 #9CC6F7 #D5E7FC

Accessibility & contrast

On white

2.56

#63A5F3 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.21

#63A5F3 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #63A5F3

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##63A5F3	#FFFFFF	#000000	##000000
##63A5F3	1.00	2.56	8.21	8.21
#FFFFFF	2.56	1.00	21.00	21.00
#000000	8.21	21.00	1.00	1.00
##000000	8.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#84A9F6

Deuteranopia (green-blind)

#719CF1

Tritanopia (blue-blind)

#00B7C1

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #63a5f3;
/* rgb */ color: rgb(99, 165, 243);
/* oklch */ color: oklch(71.1% 0.133 253.7);

Tailwind

colors: {
  custom: {
    50: '#9abff7',
    500: '#63a5f3',
    950: '#000000',
  },
}

SCSS

$custom: #63a5f3;
$custom-light: #9abff7;
$custom-dark: #000000;

JSON

{
  "hex": "#63a5f3",
  "rgb": {
    "r": 99,
    "g": 165,
    "b": 243
  },
  "hsl": {
    "h": 212.5,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.71143,
    "c": 0.13336,
    "h": 253.7
  },
  "luminance": 0.36034
}

Semantic roles & 50–950 ramp

primary

#63A5F3

secondary

#F0DBC2

accent

#7C03E2

background

#FAFBFF

surface

#F3F6FF

border

#CDD0D7

text

#0F1217

muted

#7F8185

Preview Lab

Preview with #63A5F3

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

Preview Lab → · Contrast checker → · Palette generator →