#665EB6#665EB6

#665EB6 is a mid, vivid blue. Relative luminance 0.142; OKLCH L 53.2% C 0.134 H 285.0°. Best body text is #FFFFFF at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#665EB6
RGB	rgb(102, 94, 182)
HSL	hsl(245, 38%, 54%)
HSV	hsv(245, 48%, 71%)
CMYK	cmyk(44%, 48.4%, 0%, 28.6%)
CIE-LAB	lab(44.53, 25.83, -45.76)
CIE-LCH	lch(44.53, 52.54, 299.44°)
OKLab	oklab(53.21% 0.0348 -0.1298)
OKLCH	oklch(53.21% 0.134 285)
XYZ	xyz(17.9232, 14.2069, 46.0447)
Luminance	0.1421 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EB6 #AEB65E

analogous

#5E82B6 #665EB6 #925EB6

triadic

#665EB6 #B6665E #5EB666

tetradic

#665EB6 #B65E82 #AEB65E #5EB692

square

#665EB6 #B65E82 #AEB65E #5EB692

split-complementary

#665EB6 #B6925E #82B65E

monochromatic

#35306A #4A4394 #665EB6 #8E88C9 #B6B2DC

Accessibility & contrast

On white

5.47

#665EB6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.84

#665EB6 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EB6

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EB6	#FFFFFF	#000000	##FFFFFF
##665EB6	1.00	5.47	3.84	5.47
#FFFFFF	5.47	1.00	21.00	1.00
#000000	3.84	21.00	1.00	21.00
##FFFFFF	5.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6CB9

Deuteranopia (green-blind)

#3767B4

Tritanopia (blue-blind)

#4D7081

Achromatopsia (no color)

#696969

Design tokens & code

CSS

--color: #665eb6;
/* rgb */ color: rgb(102, 94, 182);
/* oklch */ color: oklch(53.2% 0.134 285.0);

Tailwind

colors: {
  custom: {
    50: '#968bcc',
    500: '#665eb6',
    950: '#000000',
  },
}

SCSS

$custom: #665eb6;
$custom-light: #968bcc;
$custom-dark: #000000;

JSON

{
  "hex": "#665eb6",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 182
  },
  "hsl": {
    "h": 245.455,
    "s": 37.607,
    "l": 54.118
  },
  "oklch": {
    "l": 0.53207,
    "c": 0.13434,
    "h": 285
  },
  "luminance": 0.14208
}

Semantic roles & 50–950 ramp

primary

#665EB6

secondary

#C7CBA5

accent

#CE5AC3

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665EB6

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

Preview Lab → · Contrast checker → · Palette generator →