#665DB1#665DB1

#665DB1 is a mid, vivid blue. Relative luminance 0.138; OKLCH L 52.7% C 0.129 H 286.0°. Best body text is #FFFFFF at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#665DB1
RGB	rgb(102, 93, 177)
HSL	hsl(246, 35%, 53%)
HSV	hsv(246, 47%, 69%)
CMYK	cmyk(42.4%, 47.5%, 0%, 30.6%)
CIE-LAB	lab(43.98, 24.96, -43.70)
CIE-LCH	lch(43.98, 50.33, 299.73°)
OKLab	oklab(52.7% 0.0355 -0.1237)
OKLCH	oklch(52.7% 0.129 286)
XYZ	xyz(17.3274, 13.8272, 43.3424)
Luminance	0.1383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665DB1 #A8B15D

analogous

#5D7EB1 #665DB1 #905DB1

triadic

#665DB1 #B1665D #5DB166

tetradic

#665DB1 #B15D7E #A8B15D #5DB190

square

#665DB1 #B15D7E #A8B15D #5DB190

split-complementary

#665DB1 #B1905D #7EB15D

monochromatic

#363064 #4C448D #665DB1 #8D86C5 #B4B0D9

Accessibility & contrast

On white

5.58

#665DB1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#665DB1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665DB1

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665DB1	#FFFFFF	#000000	##FFFFFF
##665DB1	1.00	5.58	3.77	5.58
#FFFFFF	5.58	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C6AB4

Deuteranopia (green-blind)

#3A66AF

Tritanopia (blue-blind)

#506E7E

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #665db1;
/* rgb */ color: rgb(102, 93, 177);
/* oklch */ color: oklch(52.7% 0.129 286.0);

Tailwind

colors: {
  custom: {
    50: '#968bc9',
    500: '#665db1',
    950: '#000000',
  },
}

SCSS

$custom: #665db1;
$custom-light: #968bc9;
$custom-dark: #000000;

JSON

{
  "hex": "#665db1",
  "rgb": {
    "r": 102,
    "g": 93,
    "b": 177
  },
  "hsl": {
    "h": 246.429,
    "s": 35,
    "l": 52.941
  },
  "oklch": {
    "l": 0.52703,
    "c": 0.12872,
    "h": 286
  },
  "luminance": 0.13828
}

Semantic roles & 50–950 ramp

primary

#665DB1

secondary

#C3C7A3

accent

#CB5DBF

background

#F9F8FC

surface

#F2F0F8

border

#CCCBD1

text

#0E0C13

muted

#7E7D82

Preview Lab

Preview with #665DB1

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

Preview Lab → · Contrast checker → · Palette generator →