#665FE5#665FE5

#665FE5 is a mid, vivid blue. Relative luminance 0.167; OKLCH L 56.6% C 0.197 H 280.4°. Best body text is #FFFFFF at 4.85:1 contrast (WCAG AA passes).

Color values

HEX	#665FE5
RGB	rgb(102, 95, 229)
HSL	hsl(243, 72%, 64%)
HSV	hsv(243, 59%, 90%)
CMYK	cmyk(55.5%, 58.5%, 0%, 10.2%)
CIE-LAB	lab(47.83, 39.60, -67.41)
CIE-LCH	lch(47.83, 78.19, 300.43°)
OKLab	oklab(56.65% 0.0356 -0.1934)
OKLCH	oklch(56.65% 0.197 280.4)
XYZ	xyz(23.7101, 16.6648, 76.0808)
Luminance	0.1667 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FE5 #DEE55F

analogous

#5F9BE5 #665FE5 #A95FE5

triadic

#665FE5 #E5665F #5FE566

tetradic

#665FE5 #E55F9B #DEE55F #5FE5A9

square

#665FE5 #E55F9B #DEE55F #5FE5A9

split-complementary

#665FE5 #E5A95F #9BE55F

monochromatic

#241CAD #342ADC #665FE5 #9894EE #CBC8F6

Accessibility & contrast

On white

4.85

#665FE5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.33

#665FE5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FE5

4.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FE5	#FFFFFF	#000000	##FFFFFF
##665FE5	1.00	4.85	4.33	4.85
#FFFFFF	4.85	1.00	21.00	1.00
#000000	4.33	21.00	1.00	21.00
##FFFFFF	4.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077E9

Deuteranopia (green-blind)

#006CE2

Tritanopia (blue-blind)

#247F99

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665fe5;
/* rgb */ color: rgb(102, 95, 229);
/* oklch */ color: oklch(56.6% 0.197 280.4);

Tailwind

colors: {
  custom: {
    50: '#9c8dee',
    500: '#665fe5',
    950: '#000000',
  },
}

SCSS

$custom: #665fe5;
$custom-light: #9c8dee;
$custom-dark: #000000;

JSON

{
  "hex": "#665fe5",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 229
  },
  "hsl": {
    "h": 243.134,
    "s": 72.043,
    "l": 63.529
  },
  "oklch": {
    "l": 0.56649,
    "c": 0.19666,
    "h": 280.4
  },
  "luminance": 0.16666
}

Semantic roles & 50–950 ramp

primary

#665FE5

secondary

#E5E8B8

accent

#D411CA

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FE5

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

Preview Lab → · Contrast checker → · Palette generator →