#665FC6#665FC6

#665FC6 is a mid, vivid blue. Relative luminance 0.151; OKLCH L 54.4% C 0.155 H 283.0°. Best body text is #FFFFFF at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#665FC6
RGB	rgb(102, 95, 198)
HSL	hsl(244, 47%, 57%)
HSV	hsv(244, 52%, 78%)
CMYK	cmyk(48.5%, 52%, 0%, 22.4%)
CIE-LAB	lab(45.75, 30.04, -53.09)
CIE-LCH	lch(45.75, 61.00, 299.50°)
OKLab	oklab(54.44% 0.035 -0.1513)
OKLCH	oklch(54.44% 0.155 283)
XYZ	xyz(19.7617, 15.0854, 55.2856)
Luminance	0.1509 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FC6 #BFC65F

analogous

#5F8BC6 #665FC6 #9A5FC6

triadic

#665FC6 #C6665F #5FC666

tetradic

#665FC6 #C65F8B #BFC65F #5FC69A

square

#665FC6 #C65F8B #BFC65F #5FC69A

split-complementary

#665FC6 #C69A5F #8BC65F

monochromatic

#322D7E #443DAB #665FC6 #918CD6 #BCB9E6

Accessibility & contrast

On white

5.23

#665FC6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.02

#665FC6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FC6

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FC6	#FFFFFF	#000000	##FFFFFF
##665FC6	1.00	5.23	4.02	5.23
#FFFFFF	5.23	1.00	21.00	1.00
#000000	4.02	21.00	1.00	21.00
##FFFFFF	5.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C70CA

Deuteranopia (green-blind)

#2569C4

Tritanopia (blue-blind)

#447589

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665fc6;
/* rgb */ color: rgb(102, 95, 198);
/* oklch */ color: oklch(54.4% 0.155 283.0);

Tailwind

colors: {
  custom: {
    50: '#988cd8',
    500: '#665fc6',
    950: '#000000',
  },
}

SCSS

$custom: #665fc6;
$custom-light: #988cd8;
$custom-dark: #000000;

JSON

{
  "hex": "#665fc6",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 198
  },
  "hsl": {
    "h": 244.078,
    "s": 47.465,
    "l": 57.451
  },
  "oklch": {
    "l": 0.54439,
    "c": 0.15527,
    "h": 283
  },
  "luminance": 0.15086
}

Semantic roles & 50–950 ramp

primary

#665FC6

secondary

#D2D5AC

accent

#D751CE

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #665FC6

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

Preview Lab → · Contrast checker → · Palette generator →