#665BE0#665BE0

#665BE0 is a mid, vivid blue. Relative luminance 0.157; OKLCH L 55.6% C 0.195 H 281.7°. Best body text is #FFFFFF at 5.08:1 contrast (WCAG AA passes).

Color values

HEX	#665BE0
RGB	rgb(102, 91, 224)
HSL	hsl(245, 68%, 62%)
HSV	hsv(245, 59%, 88%)
CMYK	cmyk(54.5%, 59.4%, 0%, 12.2%)
CIE-LAB	lab(46.56, 40.42, -66.65)
CIE-LCH	lch(46.56, 77.95, 301.24°)
OKLab	oklab(55.6% 0.0396 -0.1912)
OKLCH	oklch(55.6% 0.195 281.7)
XYZ	xyz(22.6710, 15.6874, 72.3399)
Luminance	0.1569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BE0 #D5E05B

analogous

#5B93E0 #665BE0 #A85BE0

triadic

#665BE0 #E0665B #5BE066

tetradic

#665BE0 #E05B93 #D5E05B #5BE0A8

square

#665BE0 #E05B93 #D5E05B #5BE0A8

split-complementary

#665BE0 #E0A85B #93E05B

monochromatic

#291FA2 #3728D5 #665BE0 #968EEA #C6C2F3

Accessibility & contrast

On white

5.08

#665BE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.14

#665BE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BE0

5.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BE0	#FFFFFF	#000000	##FFFFFF
##665BE0	1.00	5.08	4.14	5.08
#FFFFFF	5.08	1.00	21.00	1.00
#000000	4.14	21.00	1.00	21.00
##FFFFFF	5.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0073E4

Deuteranopia (green-blind)

#006ADD

Tritanopia (blue-blind)

#2C7B95

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665be0;
/* rgb */ color: rgb(102, 91, 224);
/* oklch */ color: oklch(55.6% 0.195 281.7);

Tailwind

colors: {
  custom: {
    50: '#9c8aeb',
    500: '#665be0',
    950: '#000000',
  },
}

SCSS

$custom: #665be0;
$custom-light: #9c8aeb;
$custom-dark: #000000;

JSON

{
  "hex": "#665be0",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 224
  },
  "hsl": {
    "h": 244.962,
    "s": 68.205,
    "l": 61.765
  },
  "oklch": {
    "l": 0.55599,
    "c": 0.19526,
    "h": 281.7
  },
  "luminance": 0.15689
}

Semantic roles & 50–950 ramp

primary

#665BE0

secondary

#E0E4B3

accent

#D015C1

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665BE0

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

Preview Lab → · Contrast checker → · Palette generator →