#665EEA#665EEA

#665EEA is a mid, highly saturated blue. Relative luminance 0.168; OKLCH L 56.9% C 0.204 H 280.2°. Best body text is #FFFFFF at 4.82:1 contrast (WCAG AA passes).

Color values

HEX	#665EEA
RGB	rgb(102, 94, 234)
HSL	hsl(243, 77%, 64%)
HSV	hsv(243, 60%, 92%)
CMYK	cmyk(56.4%, 59.8%, 0%, 8.2%)
CIE-LAB	lab(47.97, 41.74, -70.02)
CIE-LCH	lch(47.97, 81.52, 300.80°)
OKLab	oklab(56.86% 0.0364 -0.2011)
OKLCH	oklch(56.86% 0.204 280.2)
XYZ	xyz(24.3288, 16.7691, 79.7807)
Luminance	0.1677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EEA #E2EA5E

analogous

#5E9CEA #665EEA #AC5EEA

triadic

#665EEA #EA665E #5EEA66

tetradic

#665EEA #EA5E9C #E2EA5E #5EEAAC

square

#665EEA #EA5E9C #E2EA5E #5EEAAC

split-complementary

#665EEA #EAAC5E #9CEA5E

monochromatic

#2118B6 #3328E3 #665EEA #9994F1 #CDCAF8

Accessibility & contrast

On white

4.82

#665EEA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.35

#665EEA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EEA

4.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EEA	#FFFFFF	#000000	##FFFFFF
##665EEA	1.00	4.82	4.35	4.82
#FFFFFF	4.82	1.00	21.00	1.00
#000000	4.35	21.00	1.00	21.00
##FFFFFF	4.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077EF

Deuteranopia (green-blind)

#006DE7

Tritanopia (blue-blind)

#1B809B

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665eea;
/* rgb */ color: rgb(102, 94, 234);
/* oklch */ color: oklch(56.9% 0.204 280.2);

Tailwind

colors: {
  custom: {
    50: '#9d8cf2',
    500: '#665eea',
    950: '#000000',
  },
}

SCSS

$custom: #665eea;
$custom-light: #9d8cf2;
$custom-dark: #000000;

JSON

{
  "hex": "#665eea",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 234
  },
  "hsl": {
    "h": 243.429,
    "s": 76.923,
    "l": 64.314
  },
  "oklch": {
    "l": 0.56861,
    "c": 0.20434,
    "h": 280.2
  },
  "luminance": 0.16771
}

Semantic roles & 50–950 ramp

primary

#665EEA

secondary

#E7EABA

accent

#D90CCD

background

#FAF8FE

surface

#F4F0FD

border

#CECBD5

text

#0F0C17

muted

#7F7D85

Preview Lab

Preview with #665EEA

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

Preview Lab → · Contrast checker → · Palette generator →