#665EB7#665EB7

#665EB7 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.3% C 0.136 H 284.9°. Best body text is #FFFFFF at 5.45:1 contrast (WCAG AA passes).

Color values

HEX	#665EB7
RGB	rgb(102, 94, 183)
HSL	hsl(245, 38%, 54%)
HSV	hsv(245, 49%, 72%)
CMYK	cmyk(44.3%, 48.6%, 0%, 28.2%)
CIE-LAB	lab(44.59, 26.12, -46.25)
CIE-LCH	lch(44.59, 53.12, 299.46°)
OKLab	oklab(53.27% 0.0349 -0.1312)
OKLCH	oklch(53.27% 0.136 284.9)
XYZ	xyz(18.0270, 14.2483, 46.5909)
Luminance	0.1425 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EB7 #AFB75E

analogous

#5E83B7 #665EB7 #935EB7

triadic

#665EB7 #B7665E #5EB766

tetradic

#665EB7 #B75E83 #AFB75E #5EB793

square

#665EB7 #B75E83 #AFB75E #5EB793

split-complementary

#665EB7 #B7935E #83B75E

monochromatic

#35306B #4A4395 #665EB7 #8E88CA #B6B3DD

Accessibility & contrast

On white

5.45

#665EB7 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.85

#665EB7 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EB7

5.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EB7	#FFFFFF	#000000	##FFFFFF
##665EB7	1.00	5.45	3.85	5.45
#FFFFFF	5.45	1.00	21.00	1.00
#000000	3.85	21.00	1.00	21.00
##FFFFFF	5.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#396CBA

Deuteranopia (green-blind)

#3667B5

Tritanopia (blue-blind)

#4D7182

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665eb7;
/* rgb */ color: rgb(102, 94, 183);
/* oklch */ color: oklch(53.3% 0.136 284.9);

Tailwind

colors: {
  custom: {
    50: '#968bcd',
    500: '#665eb7',
    950: '#000000',
  },
}

SCSS

$custom: #665eb7;
$custom-light: #968bcd;
$custom-dark: #000000;

JSON

{
  "hex": "#665eb7",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 183
  },
  "hsl": {
    "h": 245.393,
    "s": 38.197,
    "l": 54.314
  },
  "oklch": {
    "l": 0.53271,
    "c": 0.13576,
    "h": 284.9
  },
  "luminance": 0.14249
}

Semantic roles & 50–950 ramp

primary

#665EB7

secondary

#C8CBA6

accent

#CE5AC4

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665EB7

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

Preview Lab → · Contrast checker → · Palette generator →