#665FC5#665FC5

#665FC5 is a mid, vivid blue. Relative luminance 0.150; OKLCH L 54.4% C 0.154 H 283.1°. Best body text is #FFFFFF at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#665FC5
RGB	rgb(102, 95, 197)
HSL	hsl(244, 47%, 57%)
HSV	hsv(244, 52%, 77%)
CMYK	cmyk(48.2%, 51.8%, 0%, 22.7%)
CIE-LAB	lab(45.69, 29.74, -52.61)
CIE-LCH	lch(45.69, 60.43, 299.47°)
OKLab	oklab(54.37% 0.0349 -0.1499)
OKLCH	oklch(54.37% 0.154 283.1)
XYZ	xyz(19.6467, 15.0394, 54.6802)
Luminance	0.1504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FC5 #BEC55F

analogous

#5F8BC5 #665FC5 #995FC5

triadic

#665FC5 #C5665F #5FC566

tetradic

#665FC5 #C55F8B #BEC55F #5FC599

square

#665FC5 #C55F8B #BEC55F #5FC599

split-complementary

#665FC5 #C5995F #8BC55F

monochromatic

#332D7C #453DA9 #665FC5 #918CD5 #BCB9E6

Accessibility & contrast

On white

5.24

#665FC5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.01

#665FC5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FC5

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FC5	#FFFFFF	#000000	##FFFFFF
##665FC5	1.00	5.24	4.01	5.24
#FFFFFF	5.24	1.00	21.00	1.00
#000000	4.01	21.00	1.00	21.00
##FFFFFF	5.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2D70C9

Deuteranopia (green-blind)

#2769C3

Tritanopia (blue-blind)

#447589

Achromatopsia (no color)

#6C6C6C

Design tokens & code

CSS

--color: #665fc5;
/* rgb */ color: rgb(102, 95, 197);
/* oklch */ color: oklch(54.4% 0.154 283.1);

Tailwind

colors: {
  custom: {
    50: '#988cd7',
    500: '#665fc5',
    950: '#000000',
  },
}

SCSS

$custom: #665fc5;
$custom-light: #988cd7;
$custom-dark: #000000;

JSON

{
  "hex": "#665fc5",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 197
  },
  "hsl": {
    "h": 244.118,
    "s": 46.789,
    "l": 57.255
  },
  "oklch": {
    "l": 0.54372,
    "c": 0.15389,
    "h": 283.1
  },
  "luminance": 0.1504
}

Semantic roles & 50–950 ramp

primary

#665FC5

secondary

#D2D5AB

accent

#D651CD

background

#F9F8FD

surface

#F2F0FA

border

#CCCBD3

text

#0E0C14

muted

#7E7D83

Preview Lab

Preview with #665FC5

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

Preview Lab → · Contrast checker → · Palette generator →