#665F8B#665F8B

#665F8B is a mid, moderate blue. Relative luminance 0.129; OKLCH L 51.0% C 0.069 H 291.0°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#665F8B
RGB	rgb(102, 95, 139)
HSL	hsl(250, 19%, 46%)
HSV	hsv(250, 32%, 55%)
CMYK	cmyk(26.6%, 31.7%, 0%, 45.5%)
CIE-LAB	lab(42.57, 13.04, -23.34)
CIE-LCH	lch(42.57, 26.74, 299.19°)
OKLab	oklab(50.99% 0.0249 -0.0646)
OKLCH	oklch(50.99% 0.069 291)
XYZ	xyz(14.2308, 12.8731, 26.1561)
Luminance	0.1287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665F8B #848B5F

analogous

#5F6E8B #665F8B #7C5F8B

triadic

#665F8B #8B665F #5F8B66

tetradic

#665F8B #8B5F6E #848B5F #5F8B7C

square

#665F8B #8B5F6E #848B5F #5F8B7C

split-complementary

#665F8B #8B7C5F #6E8B5F

monochromatic

#312D42 #4B4667 #665F8B #867FA8 #A8A4C1

Accessibility & contrast

On white

5.87

#665F8B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#665F8B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665F8B

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665F8B	#FFFFFF	#000000	##FFFFFF
##665F8B	1.00	5.87	3.57	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#54658D

Deuteranopia (green-blind)

#54648A

Tritanopia (blue-blind)

#5E666F

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #665f8b;
/* rgb */ color: rgb(102, 95, 139);
/* oklch */ color: oklch(51.0% 0.069 291.0);

Tailwind

colors: {
  custom: {
    50: '#928cad',
    500: '#665f8b',
    950: '#000000',
  },
}

SCSS

$custom: #665f8b;
$custom-light: #928cad;
$custom-dark: #000000;

JSON

{
  "hex": "#665f8b",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 139
  },
  "hsl": {
    "h": 249.545,
    "s": 18.803,
    "l": 45.882
  },
  "oklch": {
    "l": 0.50994,
    "c": 0.06924,
    "h": 291
  },
  "luminance": 0.12873
}

Semantic roles & 50–950 ramp

primary

#665F8B

secondary

#ABAF97

accent

#BB6CAF

background

#F9F8FA

surface

#F1F0F4

border

#CBCBCE

text

#0D0C10

muted

#7E7D7F

Preview Lab

Preview with #665F8B

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

Preview Lab → · Contrast checker → · Palette generator →