#665BA5#665BA5

#665BA5 is a mid, moderate blue. Relative luminance 0.130; OKLCH L 51.6% C 0.115 H 288.5°. Best body text is #FFFFFF at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#665BA5
RGB	rgb(102, 91, 165)
HSL	hsl(249, 29%, 50%)
HSV	hsv(249, 45%, 65%)
CMYK	cmyk(38.2%, 44.8%, 0%, 35.3%)
CIE-LAB	lab(42.80, 22.70, -38.52)
CIE-LCH	lch(42.80, 44.71, 300.51°)
OKLab	oklab(51.59% 0.0364 -0.1086)
OKLCH	oklch(51.59% 0.115 288.5)
XYZ	xyz(16.0103, 13.0231, 37.2602)
Luminance	0.1302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BA5 #9AA55B

analogous

#5B75A5 #665BA5 #8B5BA5

triadic

#665BA5 #A5665B #5BA566

tetradic

#665BA5 #A55B75 #9AA55B #5BA58B

square

#665BA5 #A55B75 #9AA55B #5BA58B

split-complementary

#665BA5 #A58B5B #75A55B

monochromatic

#352F56 #4D457E #665BA5 #8B83BB #B0AAD0

Accessibility & contrast

On white

5.83

#665BA5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#665BA5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BA5

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BA5	#FFFFFF	#000000	##FFFFFF
##665BA5	1.00	5.83	3.60	5.83
#FFFFFF	5.83	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4167A8

Deuteranopia (green-blind)

#4163A3

Tritanopia (blue-blind)

#556978

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #665ba5;
/* rgb */ color: rgb(102, 91, 165);
/* oklch */ color: oklch(51.6% 0.115 288.5);

Tailwind

colors: {
  custom: {
    50: '#9489c0',
    500: '#665ba5',
    950: '#000000',
  },
}

SCSS

$custom: #665ba5;
$custom-light: #9489c0;
$custom-dark: #000000;

JSON

{
  "hex": "#665ba5",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 165
  },
  "hsl": {
    "h": 248.919,
    "s": 29.134,
    "l": 50.196
  },
  "oklch": {
    "l": 0.51589,
    "c": 0.11451,
    "h": 288.5
  },
  "luminance": 0.13024
}

Semantic roles & 50–950 ramp

primary

#665BA5

secondary

#BABE9D

accent

#C562B7

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0B12

muted

#7E7C81

Preview Lab

Preview with #665BA5

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

Preview Lab → · Contrast checker → · Palette generator →