#665FB8#665FB8

#665FB8 is a mid, vivid blue. Relative luminance 0.145; OKLCH L 53.5% C 0.136 H 284.4°. Best body text is #FFFFFF at 5.39:1 contrast (WCAG AA passes).

Color values

HEX	#665FB8
RGB	rgb(102, 95, 184)
HSL	hsl(245, 39%, 55%)
HSV	hsv(245, 48%, 72%)
CMYK	cmyk(44.6%, 48.4%, 0%, 27.8%)
CIE-LAB	lab(44.90, 25.81, -46.34)
CIE-LCH	lch(44.90, 53.04, 299.12°)
OKLab	oklab(53.52% 0.0337 -0.1314)
OKLCH	oklch(53.52% 0.136 284.4)
XYZ	xyz(18.2209, 14.4691, 47.1709)
Luminance	0.1447 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FB8 #B1B85F

analogous

#5F85B8 #665FB8 #935FB8

triadic

#665FB8 #B8665F #5FB866

tetradic

#665FB8 #B85F85 #B1B85F #5FB893

square

#665FB8 #B85F85 #B1B85F #5FB893

split-complementary

#665FB8 #B8935F #85B85F

monochromatic

#35306C #4A4397 #665FB8 #8F89CB #B7B4DE

Accessibility & contrast

On white

5.39

#665FB8 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.89

#665FB8 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FB8

5.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FB8	#FFFFFF	#000000	##FFFFFF
##665FB8	1.00	5.39	3.89	5.39
#FFFFFF	5.39	1.00	21.00	1.00
#000000	3.89	21.00	1.00	21.00
##FFFFFF	5.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A6DBB

Deuteranopia (green-blind)

#3767B6

Tritanopia (blue-blind)

#4C7283

Achromatopsia (no color)

#6A6A6A

Design tokens & code

CSS

--color: #665fb8;
/* rgb */ color: rgb(102, 95, 184);
/* oklch */ color: oklch(53.5% 0.136 284.4);

Tailwind

colors: {
  custom: {
    50: '#968cce',
    500: '#665fb8',
    950: '#000000',
  },
}

SCSS

$custom: #665fb8;
$custom-light: #968cce;
$custom-dark: #000000;

JSON

{
  "hex": "#665fb8",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 184
  },
  "hsl": {
    "h": 244.719,
    "s": 38.528,
    "l": 54.706
  },
  "oklch": {
    "l": 0.53524,
    "c": 0.13571,
    "h": 284.4
  },
  "luminance": 0.1447
}

Semantic roles & 50–950 ramp

primary

#665FB8

secondary

#C9CCA7

accent

#CE59C5

background

#F9F8FC

surface

#F2F0F9

border

#CCCBD2

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665FB8

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

Preview Lab → · Contrast checker → · Palette generator →