#6663EA#6663EA

#6663EA is a mid, vivid blue. Relative luminance 0.177; OKLCH L 57.7% C 0.198 H 279.2°. Best body text is #FFFFFF at 4.63:1 contrast (WCAG AA passes).

Color values

HEX	#6663EA
RGB	rgb(102, 99, 234)
HSL	hsl(241, 76%, 65%)
HSV	hsv(241, 58%, 92%)
CMYK	cmyk(56.4%, 57.7%, 0%, 8.2%)
CIE-LAB	lab(49.11, 38.78, -68.15)
CIE-LCH	lch(49.11, 78.42, 299.64°)
OKLab	oklab(57.71% 0.0316 -0.1956)
OKLCH	oklch(57.71% 0.198 279.2)
XYZ	xyz(24.7879, 17.6873, 79.9337)
Luminance	0.1769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6663EA #E7EA63

analogous

#63A4EA #6663EA #A963EA

triadic

#6663EA #EA6663 #63EA66

tetradic

#6663EA #EA63A4 #E7EA63 #63EAA9

square

#6663EA #EA63A4 #E7EA63 #63EAA9

split-complementary

#6663EA #EAA963 #A4EA63

monochromatic

#1D19BA #312DE3 #6663EA #9B99F1 #D0CFF9

Accessibility & contrast

On white

4.63

#6663EA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.54

#6663EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6663EA

4.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6663EA	#FFFFFF	#000000	##FFFFFF
##6663EA	1.00	4.63	4.54	4.63
#FFFFFF	4.63	1.00	21.00	1.00
#000000	4.54	21.00	1.00	21.00
##FFFFFF	4.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#007AEE

Deuteranopia (green-blind)

#006FE7

Tritanopia (blue-blind)

#1A839D

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6663ea;
/* rgb */ color: rgb(102, 99, 234);
/* oklch */ color: oklch(57.7% 0.198 279.2);

Tailwind

colors: {
  custom: {
    50: '#9d8ff2',
    500: '#6663ea',
    950: '#000000',
  },
}

SCSS

$custom: #6663ea;
$custom-light: #9d8ff2;
$custom-dark: #000000;

JSON

{
  "hex": "#6663ea",
  "rgb": {
    "r": 102,
    "g": 99,
    "b": 234
  },
  "hsl": {
    "h": 241.333,
    "s": 76.271,
    "l": 65.294
  },
  "oklch": {
    "l": 0.57707,
    "c": 0.19811,
    "h": 279.2
  },
  "luminance": 0.17689
}

Semantic roles & 50–950 ramp

primary

#6663EA

secondary

#EAEBBE

accent

#D80DD4

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #6663EA

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

Preview Lab → · Contrast checker → · Palette generator →