#665FE0#665FE0

#665FE0 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 56.3% C 0.190 H 280.8°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#665FE0
RGB	rgb(102, 95, 224)
HSL	hsl(243, 68%, 63%)
HSV	hsv(243, 58%, 88%)
CMYK	cmyk(54.5%, 57.6%, 0%, 12.2%)
CIE-LAB	lab(47.48, 38.05, -65.16)
CIE-LCH	lch(47.48, 75.46, 300.28°)
OKLab	oklab(56.28% 0.0356 -0.1868)
OKLCH	oklch(56.28% 0.19 280.8)
XYZ	xyz(23.0221, 16.3896, 72.4569)
Luminance	0.1639 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FE0 #D9E05F

analogous

#5F98E0 #665FE0 #A75FE0

triadic

#665FE0 #E0665F #5FE066

tetradic

#665FE0 #E05F98 #D9E05F #5FE0A7

square

#665FE0 #E05F98 #D9E05F #5FE0A7

split-complementary

#665FE0 #E0A75F #98E05F

monochromatic

#2720A5 #352CD6 #665FE0 #9792EA #C8C6F4

Accessibility & contrast

On white

4.91

#665FE0 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.28

#665FE0 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FE0

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FE0	#FFFFFF	#000000	##FFFFFF
##665FE0	1.00	4.91	4.28	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.28	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E4

Deuteranopia (green-blind)

#006CDD

Tritanopia (blue-blind)

#2C7D96

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665fe0;
/* rgb */ color: rgb(102, 95, 224);
/* oklch */ color: oklch(56.3% 0.190 280.8);

Tailwind

colors: {
  custom: {
    50: '#9b8deb',
    500: '#665fe0',
    950: '#000000',
  },
}

SCSS

$custom: #665fe0;
$custom-light: #9b8deb;
$custom-dark: #000000;

JSON

{
  "hex": "#665fe0",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 224
  },
  "hsl": {
    "h": 243.256,
    "s": 67.539,
    "l": 62.549
  },
  "oklch": {
    "l": 0.56277,
    "c": 0.19016,
    "h": 280.8
  },
  "luminance": 0.16391
}

Semantic roles & 50–950 ramp

primary

#665FE0

secondary

#E2E5B6

accent

#CF16C5

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FE0

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

Preview Lab → · Contrast checker → · Palette generator →