#665FE1#665FE1

#665FE1 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 56.4% C 0.191 H 280.7°. Best body text is #FFFFFF at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#665FE1
RGB	rgb(102, 95, 225)
HSL	hsl(243, 68%, 63%)
HSV	hsv(243, 58%, 88%)
CMYK	cmyk(54.7%, 57.8%, 0%, 11.8%)
CIE-LAB	lab(47.55, 38.36, -65.61)
CIE-LCH	lch(47.55, 76.00, 300.31°)
OKLab	oklab(56.35% 0.0356 -0.1881)
OKLCH	oklch(56.35% 0.191 280.7)
XYZ	xyz(23.1581, 16.4440, 73.1733)
Luminance	0.1645 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FE1 #DAE15F

analogous

#5F99E1 #665FE1 #A75FE1

triadic

#665FE1 #E1665F #5FE166

tetradic

#665FE1 #E15F99 #DAE15F #5FE1A7

square

#665FE1 #E15F99 #DAE15F #5FE1A7

split-complementary

#665FE1 #E1A75F #99E15F

monochromatic

#261FA6 #352BD7 #665FE1 #9793EB #C9C6F4

Accessibility & contrast

On white

4.90

#665FE1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.29

#665FE1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FE1

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FE1	#FFFFFF	#000000	##FFFFFF
##665FE1	1.00	4.90	4.29	4.90
#FFFFFF	4.90	1.00	21.00	1.00
#000000	4.29	21.00	1.00	21.00
##FFFFFF	4.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076E5

Deuteranopia (green-blind)

#006CDE

Tritanopia (blue-blind)

#2A7E97

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665fe1;
/* rgb */ color: rgb(102, 95, 225);
/* oklch */ color: oklch(56.4% 0.191 280.7);

Tailwind

colors: {
  custom: {
    50: '#9b8deb',
    500: '#665fe1',
    950: '#000000',
  },
}

SCSS

$custom: #665fe1;
$custom-light: #9b8deb;
$custom-dark: #000000;

JSON

{
  "hex": "#665fe1",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 225
  },
  "hsl": {
    "h": 243.231,
    "s": 68.421,
    "l": 62.745
  },
  "oklch": {
    "l": 0.56351,
    "c": 0.19146,
    "h": 280.7
  },
  "luminance": 0.16445
}

Semantic roles & 50–950 ramp

primary

#665FE1

secondary

#E3E5B6

accent

#D015C6

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FE1

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

Preview Lab → · Contrast checker → · Palette generator →