#665EB4#665EB4

#665EB4 is a mid, vivid blue. Relative luminance 0.141; OKLCH L 53.1% C 0.132 H 285.2°. Best body text is #FFFFFF at 5.49:1 contrast (WCAG AA passes).

Color values

HEX	#665EB4
RGB	rgb(102, 94, 180)
HSL	hsl(246, 36%, 54%)
HSV	hsv(246, 48%, 71%)
CMYK	cmyk(43.3%, 47.8%, 0%, 29.4%)
CIE-LAB	lab(44.41, 25.23, -44.78)
CIE-LCH	lch(44.41, 51.40, 299.40°)
OKLab	oklab(53.08% 0.0345 -0.1269)
OKLCH	oklch(53.08% 0.132 285.2)
XYZ	xyz(17.7180, 14.1248, 44.9640)
Luminance	0.1412 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EB4 #ACB45E

analogous

#5E81B4 #665EB4 #915EB4

triadic

#665EB4 #B4665E #5EB466

tetradic

#665EB4 #B45E81 #ACB45E #5EB491

square

#665EB4 #B45E81 #ACB45E #5EB491

split-complementary

#665EB4 #B4915E #81B45E

monochromatic

#353067 #4B4491 #665EB4 #8E88C7 #B5B1DB

Accessibility & contrast

On white

5.49

#665EB4 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.82

#665EB4 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EB4

5.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EB4	#FFFFFF	#000000	##FFFFFF
##665EB4	1.00	5.49	3.82	5.49
#FFFFFF	5.49	1.00	21.00	1.00
#000000	3.82	21.00	1.00	21.00
##FFFFFF	5.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6CB7

Deuteranopia (green-blind)

#3966B2

Tritanopia (blue-blind)

#4E7080

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665eb4;
/* rgb */ color: rgb(102, 94, 180);
/* oklch */ color: oklch(53.1% 0.132 285.2);

Tailwind

colors: {
  custom: {
    50: '#968bcb',
    500: '#665eb4',
    950: '#000000',
  },
}

SCSS

$custom: #665eb4;
$custom-light: #968bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#665eb4",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 180
  },
  "hsl": {
    "h": 245.581,
    "s": 36.441,
    "l": 53.725
  },
  "oklch": {
    "l": 0.53082,
    "c": 0.1315,
    "h": 285.2
  },
  "luminance": 0.14125
}

Semantic roles & 50–950 ramp

primary

#665EB4

secondary

#C6C9A5

accent

#CC5BC2

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665EB4

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

Preview Lab → · Contrast checker → · Palette generator →