#665ACC#665ACC

#665ACC is a mid, vivid blue. Relative luminance 0.145; OKLCH L 54.0% C 0.170 H 283.9°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#665ACC
RGB	rgb(102, 90, 204)
HSL	hsl(246, 53%, 58%)
HSV	hsv(246, 56%, 80%)
CMYK	cmyk(50%, 55.9%, 0%, 20%)
CIE-LAB	lab(44.94, 34.90, -57.86)
CIE-LCH	lch(44.94, 67.57, 301.10°)
OKLab	oklab(53.96% 0.0409 -0.1653)
OKLCH	oklch(53.96% 0.17 283.9)
XYZ	xyz(20.0315, 14.4957, 58.8575)
Luminance	0.1450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665ACC #C0CC5A

analogous

#5A87CC #665ACC #9F5ACC

triadic

#665ACC #CC665A #5ACC66

tetradic

#665ACC #CC5A87 #C0CC5A #5ACC9F

square

#665ACC #CC5A87 #C0CC5A #5ACC9F

split-complementary

#665ACC #CC9F5A #87CC5A

monochromatic

#322983 #4437B2 #665ACC #9189DA #BDB7E9

Accessibility & contrast

On white

5.39

#665ACC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.90

#665ACC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665ACC

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665ACC	#FFFFFF	#000000	##FFFFFF
##665ACC	1.00	5.39	3.90	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.90	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D6ED0

Deuteranopia (green-blind)

#0067CA

Tritanopia (blue-blind)

#40748A

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665acc;
/* rgb */ color: rgb(102, 90, 204);
/* oklch */ color: oklch(54.0% 0.170 283.9);

Tailwind

colors: {
  custom: {
    50: '#9989dc',
    500: '#665acc',
    950: '#000000',
  },
}

SCSS

$custom: #665acc;
$custom-light: #9989dc;
$custom-dark: #000000;

JSON

{
  "hex": "#665acc",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 204
  },
  "hsl": {
    "h": 246.316,
    "s": 52.778,
    "l": 57.647
  },
  "oklch": {
    "l": 0.53956,
    "c": 0.17031,
    "h": 283.9
  },
  "luminance": 0.14497
}

Semantic roles & 50–950 ramp

primary

#665ACC

secondary

#D3D8AA

accent

#DC4CCD

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #665ACC

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

Preview Lab → · Contrast checker → · Palette generator →