#665DEE#665DEE

#665DEE is a mid, highly saturated blue. Relative luminance 0.168; OKLCH L 57.0% C 0.211 H 280.1°. Best body text is #FFFFFF at 4.81:1 contrast (WCAG AA passes).

Color values

HEX	#665DEE
RGB	rgb(102, 93, 238)
HSL	hsl(244, 81%, 65%)
HSV	hsv(244, 61%, 93%)
CMYK	cmyk(57.1%, 60.9%, 0%, 6.7%)
CIE-LAB	lab(48.04, 43.57, -72.15)
CIE-LCH	lch(48.04, 84.28, 301.13°)
OKLab	oklab(57.01% 0.0371 -0.2073)
OKLCH	oklch(57.01% 0.211 280.1)
XYZ	xyz(24.8216, 16.8248, 82.8119)
Luminance	0.1683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DEE #E5EE5D

analogous

#5D9DEE #665DEE #AE5DEE

triadic

#665DEE #EE665D #5DEE66

tetradic

#665DEE #EE5D9D #E5EE5D #5DEEAE

square

#665DEE #EE5D9D #E5EE5D #5DEEAE

split-complementary

#665DEE #EEAE5D #9DEE5D

monochromatic

#1E14BD #3226E8 #665DEE #9A94F4 #CFCCFA

Accessibility & contrast

On white

4.81

#665DEE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.37

#665DEE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DEE

4.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DEE	#FFFFFF	#000000	##FFFFFF
##665DEE	1.00	4.81	4.37	4.81
#FFFFFF	4.81	1.00	21.00	1.00
#000000	4.37	21.00	1.00	21.00
##FFFFFF	4.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0077F3

Deuteranopia (green-blind)

#006CEB

Tritanopia (blue-blind)

#11809D

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #665dee;
/* rgb */ color: rgb(102, 93, 238);
/* oklch */ color: oklch(57.0% 0.211 280.1);

Tailwind

colors: {
  custom: {
    50: '#9d8bf5',
    500: '#665dee',
    950: '#000000',
  },
}

SCSS

$custom: #665dee;
$custom-light: #9d8bf5;
$custom-dark: #000000;

JSON

{
  "hex": "#665dee",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 238
  },
  "hsl": {
    "h": 243.724,
    "s": 81.006,
    "l": 64.902
  },
  "oklch": {
    "l": 0.57006,
    "c": 0.21064,
    "h": 280.1
  },
  "luminance": 0.16827
}

Semantic roles & 50–950 ramp

primary

#665DEE

secondary

#E9ECBB

accent

#DD08D0

background

#FAF8FF

surface

#F4F0FE

border

#CECBD6

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665DEE

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

Preview Lab → · Contrast checker → · Palette generator →