#665AEE#665AEE

#665AEE is a mid, highly saturated blue. Relative luminance 0.163; OKLCH L 56.5% C 0.214 H 280.7°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#665AEE
RGB	rgb(102, 90, 238)
HSL	hsl(245, 81%, 64%)
HSV	hsv(245, 62%, 93%)
CMYK	cmyk(57.1%, 62.2%, 0%, 6.7%)
CIE-LAB	lab(47.38, 45.31, -73.23)
CIE-LCH	lch(47.38, 86.11, 301.75°)
OKLab	oklab(56.52% 0.0398 -0.2105)
OKLCH	oklch(56.52% 0.214 280.7)
XYZ	xyz(24.5634, 16.3085, 82.7258)
Luminance	0.1631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AEE #E2EE5A

analogous

#5A98EE #665AEE #B05AEE

triadic

#665AEE #EE665A #5AEE66

tetradic

#665AEE #EE5A98 #E2EE5A #5AEEB0

square

#665AEE #EE5A98 #E2EE5A #5AEEB0

split-complementary

#665AEE #EEB05A #98EE5A

monochromatic

#2113BA #3323E8 #665AEE #9991F4 #CDC9F9

Accessibility & contrast

On white

4.93

#665AEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#665AEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AEE

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AEE	#FFFFFF	#000000	##FFFFFF
##665AEE	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F3

Deuteranopia (green-blind)

#006BEB

Tritanopia (blue-blind)

#127F9C

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665aee;
/* rgb */ color: rgb(102, 90, 238);
/* oklch */ color: oklch(56.5% 0.214 280.7);

Tailwind

colors: {
  custom: {
    50: '#9e89f5',
    500: '#665aee',
    950: '#000000',
  },
}

SCSS

$custom: #665aee;
$custom-light: #9e89f5;
$custom-dark: #000000;

JSON

{
  "hex": "#665aee",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 238
  },
  "hsl": {
    "h": 244.865,
    "s": 81.319,
    "l": 64.314
  },
  "oklch": {
    "l": 0.56521,
    "c": 0.21425,
    "h": 280.7
  },
  "luminance": 0.1631
}

Semantic roles & 50–950 ramp

primary

#665AEE

secondary

#E7ECB8

accent

#DE08CC

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#100B17

muted

#7F7C85

Preview Lab

Preview with #665AEE

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

Preview Lab → · Contrast checker → · Palette generator →