#665EA3#665EA3

#665EA3 is a mid, moderate blue. Relative luminance 0.135; OKLCH L 52.1% C 0.107 H 287.4°. Best body text is #FFFFFF at 5.68:1 contrast (WCAG AA passes).

Color values

HEX	#665EA3
RGB	rgb(102, 94, 163)
HSL	hsl(247, 27%, 50%)
HSV	hsv(247, 42%, 64%)
CMYK	cmyk(37.4%, 42.3%, 0%, 36.1%)
CIE-LAB	lab(43.47, 20.27, -36.27)
CIE-LCH	lch(43.47, 41.55, 299.20°)
OKLab	oklab(52.06% 0.032 -0.102)
OKLCH	oklch(52.06% 0.107 287.4)
XYZ	xyz(16.0912, 13.4740, 36.3962)
Luminance	0.1348 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665EA3 #9BA35E

analogous

#5E78A3 #665EA3 #895EA3

triadic

#665EA3 #A3665E #5EA366

tetradic

#665EA3 #A35E78 #9BA35E #5EA389

square

#665EA3 #A35E78 #9BA35E #5EA389

split-complementary

#665EA3 #A3895E #78A35E

monochromatic

#353156 #4D477D #665EA3 #8B85B9 #B0ACD0

Accessibility & contrast

On white

5.68

#665EA3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.70

#665EA3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665EA3

5.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665EA3	#FFFFFF	#000000	##FFFFFF
##665EA3	1.00	5.68	3.70	5.68
#FFFFFF	5.68	1.00	21.00	1.00
#000000	3.70	21.00	1.00	21.00
##FFFFFF	5.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4768A6

Deuteranopia (green-blind)

#4665A1

Tritanopia (blue-blind)

#566B78

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #665ea3;
/* rgb */ color: rgb(102, 94, 163);
/* oklch */ color: oklch(52.1% 0.107 287.4);

Tailwind

colors: {
  custom: {
    50: '#948bbe',
    500: '#665ea3',
    950: '#000000',
  },
}

SCSS

$custom: #665ea3;
$custom-light: #948bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#665ea3",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 163
  },
  "hsl": {
    "h": 246.957,
    "s": 27.273,
    "l": 50.392
  },
  "oklch": {
    "l": 0.52062,
    "c": 0.1069,
    "h": 287.4
  },
  "luminance": 0.13475
}

Semantic roles & 50–950 ramp

primary

#665EA3

secondary

#BABE9F

accent

#C464B9

background

#F9F8FB

surface

#F2F0F7

border

#CCCBD0

text

#0D0C12

muted

#7E7D81

Preview Lab

Preview with #665EA3

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

Preview Lab → · Contrast checker → · Palette generator →