#665FCF#665FCF

#665FCF is a mid, vivid blue. Relative luminance 0.155; OKLCH L 55.1% C 0.168 H 282.2°. Best body text is #FFFFFF at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#665FCF
RGB	rgb(102, 95, 207)
HSL	hsl(244, 54%, 59%)
HSV	hsv(244, 54%, 81%)
CMYK	cmyk(50.7%, 54.1%, 0%, 18.8%)
CIE-LAB	lab(46.33, 32.80, -57.33)
CIE-LCH	lch(46.33, 66.05, 299.77°)
OKLab	oklab(55.06% 0.0354 -0.1638)
OKLCH	oklch(55.06% 0.168 282.2)
XYZ	xyz(20.8308, 15.5131, 60.9161)
Luminance	0.1551 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665FCF #C8CF5F

analogous

#5F90CF #665FCF #9E5FCF

triadic

#665FCF #CF665F #5FCF66

tetradic

#665FCF #CF5F90 #C8CF5F #5FCF9E

square

#665FCF #CF5F90 #C8CF5F #5FCF9E

split-complementary

#665FCF #CF9E5F #90CF5F

monochromatic

#2F298A #4038B9 #665FCF #938EDD #C0BDEB

Accessibility & contrast

On white

5.12

#665FCF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.10

#665FCF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665FCF

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665FCF	#FFFFFF	#000000	##FFFFFF
##665FCF	1.00	5.12	4.10	5.12
#FFFFFF	5.12	1.00	21.00	1.00
#000000	4.10	21.00	1.00	21.00
##FFFFFF	5.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E72D3

Deuteranopia (green-blind)

#106ACD

Tritanopia (blue-blind)

#3D788E

Achromatopsia (no color)

#6E6E6E

Design tokens & code

CSS

--color: #665fcf;
/* rgb */ color: rgb(102, 95, 207);
/* oklch */ color: oklch(55.1% 0.168 282.2);

Tailwind

colors: {
  custom: {
    50: '#998cde',
    500: '#665fcf',
    950: '#000000',
  },
}

SCSS

$custom: #665fcf;
$custom-light: #998cde;
$custom-dark: #000000;

JSON

{
  "hex": "#665fcf",
  "rgb": {
    "r": 102,
    "g": 95,
    "b": 207
  },
  "hsl": {
    "h": 243.75,
    "s": 53.846,
    "l": 59.216
  },
  "oklch": {
    "l": 0.55055,
    "c": 0.16756,
    "h": 282.2
  },
  "luminance": 0.15514
}

Semantic roles & 50–950 ramp

primary

#665FCF

secondary

#D8DBAF

accent

#DD4BD4

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0E0C15

muted

#7E7D83

Preview Lab

Preview with #665FCF

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

Preview Lab → · Contrast checker → · Palette generator →