#665FDD#665FDD

#665FDD is a mid, vivid blue. Relative luminance 0.162; OKLCH L 56.1% C 0.186 H 281.0°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#665FDD
RGB	rgb(102, 95, 221)
HSL	hsl(243, 65%, 62%)
HSV	hsv(243, 57%, 87%)
CMYK	cmyk(53.8%, 57%, 0%, 13.3%)
CIE-LAB	lab(47.27, 37.12, -63.80)
CIE-LCH	lch(47.27, 73.81, 300.19°)
OKLab	oklab(56.06% 0.0357 -0.1828)
OKLCH	oklch(56.06% 0.186 281)
XYZ	xyz(22.6188, 16.2283, 70.3331)
Luminance	0.1623 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FDD #D6DD5F

analogous

#5F97DD #665FDD #A55FDD

triadic

#665FDD #DD665F #5FDD66

tetradic

#665FDD #DD5F97 #D6DD5F #5FDDA5

square

#665FDD #DD5F97 #D6DD5F #5FDDA5

split-complementary

#665FDD #DDA55F #97DD5F

monochromatic

#2922A0 #362DD2 #665FDD #9691E8 #C7C4F2

Accessibility & contrast

On white

4.95

#665FDD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#665FDD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FDD

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FDD	#FFFFFF	#000000	##FFFFFF
##665FDD	1.00	4.95	4.25	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0075E1

Deuteranopia (green-blind)

#006BDA

Tritanopia (blue-blind)

#2F7C95

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #665fdd;
/* rgb */ color: rgb(102, 95, 221);
/* oklch */ color: oklch(56.1% 0.186 281.0);

Tailwind

colors: {
  custom: {
    50: '#9b8ce8',
    500: '#665fdd',
    950: '#000000',
  },
}

SCSS

$custom: #665fdd;
$custom-light: #9b8ce8;
$custom-dark: #000000;

JSON

{
  "hex": "#665fdd",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 221
  },
  "hsl": {
    "h": 243.333,
    "s": 64.948,
    "l": 61.961
  },
  "oklch": {
    "l": 0.56056,
    "c": 0.18622,
    "h": 281
  },
  "luminance": 0.1623
}

Semantic roles & 50–950 ramp

primary

#665FDD

secondary

#E1E3B5

accent

#CD19C3

background

#FAF8FE

surface

#F3F0FD

border

#CDCBD5

text

#0F0C16

muted

#7F7D84

Preview Lab

Preview with #665FDD

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

Preview Lab → · Contrast checker → · Palette generator →