#665AC8#665AC8

#665AC8 is a mid, vivid blue. Relative luminance 0.143; OKLCH L 53.7% C 0.165 H 284.3°. Best body text is #FFFFFF at 5.44:1 contrast (WCAG AA passes).

Color values

HEX	#665AC8
RGB	rgb(102, 90, 200)
HSL	hsl(247, 50%, 57%)
HSV	hsv(247, 55%, 78%)
CMYK	cmyk(49%, 55%, 0%, 21.6%)
CIE-LAB	lab(44.67, 33.68, -55.98)
CIE-LCH	lch(44.67, 65.34, 301.03°)
OKLab	oklab(53.67% 0.0408 -0.1598)
OKLCH	oklch(53.67% 0.165 284.3)
XYZ	xyz(19.5579, 14.3063, 56.3632)
Luminance	0.1431 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AC8 #BCC85A

analogous

#5A85C8 #665AC8 #9D5AC8

triadic

#665AC8 #C8665A #5AC866

tetradic

#665AC8 #C85A85 #BCC85A #5AC89D

square

#665AC8 #C85A85 #BCC85A #5AC89D

split-complementary

#665AC8 #C89D5A #85C85A

monochromatic

#332A7E #4639AC #665AC8 #9188D7 #BBB6E7

Accessibility & contrast

On white

5.44

#665AC8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.86

#665AC8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AC8

5.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AC8	#FFFFFF	#000000	##FFFFFF
##665AC8	1.00	5.44	3.86	5.44
#FFFFFF	5.44	1.00	21.00	1.00
#000000	3.86	21.00	1.00	21.00
##FFFFFF	5.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#196DCC

Deuteranopia (green-blind)

#1066C6

Tritanopia (blue-blind)

#437388

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665ac8;
/* rgb */ color: rgb(102, 90, 200);
/* oklch */ color: oklch(53.7% 0.165 284.3);

Tailwind

colors: {
  custom: {
    50: '#9889d9',
    500: '#665ac8',
    950: '#000000',
  },
}

SCSS

$custom: #665ac8;
$custom-light: #9889d9;
$custom-dark: #000000;

JSON

{
  "hex": "#665ac8",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 200
  },
  "hsl": {
    "h": 246.545,
    "s": 50,
    "l": 56.863
  },
  "oklch": {
    "l": 0.53674,
    "c": 0.16494,
    "h": 284.3
  },
  "luminance": 0.14307
}

Semantic roles & 50–950 ramp

primary

#665AC8

secondary

#D0D5A8

accent

#DA4ECA

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #665AC8

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

Preview Lab → · Contrast checker → · Palette generator →