#665EB2#665EB2

#665EB2 is a mid, vivid blue. Relative luminance 0.140; OKLCH L 53.0% C 0.129 H 285.5°. Best body text is #FFFFFF at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#665EB2
RGB	rgb(102, 94, 178)
HSL	hsl(246, 35%, 53%)
HSV	hsv(246, 47%, 70%)
CMYK	cmyk(42.7%, 47.2%, 0%, 30.2%)
CIE-LAB	lab(44.30, 24.64, -43.79)
CIE-LCH	lch(44.30, 50.25, 299.36°)
OKLab	oklab(52.96% 0.0343 -0.124)
OKLCH	oklch(52.96% 0.129 285.5)
XYZ	xyz(17.5158, 14.0439, 43.8987)
Luminance	0.1404 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EB2 #AAB25E

analogous

#5E80B2 #665EB2 #905EB2

triadic

#665EB2 #B2665E #5EB266

tetradic

#665EB2 #B25E80 #AAB25E #5EB290

square

#665EB2 #B25E80 #AAB25E #5EB290

split-complementary

#665EB2 #B2905E #80B25E

monochromatic

#353065 #4B448F #665EB2 #8D87C6 #B5B1DA

Accessibility & contrast

On white

5.51

#665EB2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.81

#665EB2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EB2

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EB2	#FFFFFF	#000000	##FFFFFF
##665EB2	1.00	5.51	3.81	5.51
#FFFFFF	5.51	1.00	21.00	1.00
#000000	3.81	21.00	1.00	21.00
##FFFFFF	5.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D6BB5

Deuteranopia (green-blind)

#3B66B0

Tritanopia (blue-blind)

#4F6F7F

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665eb2;
/* rgb */ color: rgb(102, 94, 178);
/* oklch */ color: oklch(53.0% 0.129 285.5);

Tailwind

colors: {
  custom: {
    50: '#968bc9',
    500: '#665eb2',
    950: '#000000',
  },
}

SCSS

$custom: #665eb2;
$custom-light: #968bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#665eb2",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 178
  },
  "hsl": {
    "h": 245.714,
    "s": 35.294,
    "l": 53.333
  },
  "oklch": {
    "l": 0.52957,
    "c": 0.12865,
    "h": 285.5
  },
  "luminance": 0.14045
}

Semantic roles & 50–950 ramp

primary

#665EB2

secondary

#C5C8A4

accent

#CB5CC1

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665EB2

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

Preview Lab → · Contrast checker → · Palette generator →