#665BCD#665BCD

#665BCD is a mid, vivid blue. Relative luminance 0.147; OKLCH L 54.2% C 0.170 H 283.5°. Best body text is #FFFFFF at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#665BCD
RGB	rgb(102, 91, 205)
HSL	hsl(246, 53%, 58%)
HSV	hsv(246, 56%, 80%)
CMYK	cmyk(50.2%, 55.6%, 0%, 19.6%)
CIE-LAB	lab(45.24, 34.60, -57.94)
CIE-LCH	lch(45.24, 67.49, 300.84°)
OKLab	oklab(54.2% 0.0398 -0.1656)
OKLCH	oklch(54.2% 0.17 283.5)
XYZ	xyz(20.2367, 14.7137, 59.5195)
Luminance	0.1472 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665BCD #C2CD5B

analogous

#5B89CD #665BCD #9F5BCD

triadic

#665BCD #CD665B #5BCD66

tetradic

#665BCD #CD5B89 #C2CD5B #5BCD9F

square

#665BCD #CD5B89 #C2CD5B #5BCD9F

split-complementary

#665BCD #CD9F5B #89CD5B

monochromatic

#312985 #4337B4 #665BCD #928ADB #BEB9EA

Accessibility & contrast

On white

5.33

#665BCD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.94

#665BCD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665BCD

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665BCD	#FFFFFF	#000000	##FFFFFF
##665BCD	1.00	5.33	3.94	5.33
#FFFFFF	5.33	1.00	21.00	1.00
#000000	3.94	21.00	1.00	21.00
##FFFFFF	5.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#106FD1

Deuteranopia (green-blind)

#0067CB

Tritanopia (blue-blind)

#3F758B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #665bcd;
/* rgb */ color: rgb(102, 91, 205);
/* oklch */ color: oklch(54.2% 0.170 283.5);

Tailwind

colors: {
  custom: {
    50: '#9989dd',
    500: '#665bcd',
    950: '#000000',
  },
}

SCSS

$custom: #665bcd;
$custom-light: #9989dd;
$custom-dark: #000000;

JSON

{
  "hex": "#665bcd",
  "rgb": {
    "r": 102,
    "g": 91,
    "b": 205
  },
  "hsl": {
    "h": 245.789,
    "s": 53.271,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54203,
    "c": 0.17029,
    "h": 283.5
  },
  "luminance": 0.14715
}

Semantic roles & 50–950 ramp

primary

#665BCD

secondary

#D4D9AB

accent

#DD4BCF

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0B15

muted

#7E7C83

Preview Lab

Preview with #665BCD

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

Preview Lab → · Contrast checker → · Palette generator →