#665ECF#665ECF

#665ECF is a mid, vivid blue. Relative luminance 0.153; OKLCH L 54.9% C 0.169 H 282.5°. Best body text is #FFFFFF at 5.16:1 contrast (WCAG AA passes).

Color values

HEX	#665ECF
RGB	rgb(102, 94, 207)
HSL	hsl(244, 54%, 59%)
HSV	hsv(244, 55%, 81%)
CMYK	cmyk(50.7%, 54.6%, 0%, 18.8%)
CIE-LAB	lab(46.09, 33.40, -57.72)
CIE-LCH	lch(46.09, 66.69, 300.06°)
OKLab	oklab(54.88% 0.0365 -0.1649)
OKLCH	oklch(54.88% 0.169 282.5)
XYZ	xyz(20.7413, 15.3341, 60.8862)
Luminance	0.1533 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665ECF #C7CF5E

analogous

#5E8FCF #665ECF #9F5ECF

triadic

#665ECF #CF665E #5ECF66

tetradic

#665ECF #CF5E8F #C7CF5E #5ECF9F

square

#665ECF #CF5E8F #C7CF5E #5ECF9F

split-complementary

#665ECF #CF9F5E #8FCF5E

monochromatic

#30298A #4037B9 #665ECF #938DDD #C0BCEB

Accessibility & contrast

On white

5.16

#665ECF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.07

#665ECF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665ECF

5.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665ECF	#FFFFFF	#000000	##FFFFFF
##665ECF	1.00	5.16	4.07	5.16
#FFFFFF	5.16	1.00	21.00	1.00
#000000	4.07	21.00	1.00	21.00
##FFFFFF	5.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A71D3

Deuteranopia (green-blind)

#0A69CD

Tritanopia (blue-blind)

#3D778D

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #665ecf;
/* rgb */ color: rgb(102, 94, 207);
/* oklch */ color: oklch(54.9% 0.169 282.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#665ecf",
  "rgb": {
    "r": 102,
    "g": 94,
    "b": 207
  },
  "hsl": {
    "h": 244.248,
    "s": 54.067,
    "l": 59.02
  },
  "oklch": {
    "l": 0.54876,
    "c": 0.16892,
    "h": 282.5
  },
  "luminance": 0.15335
}

Semantic roles & 50–950 ramp

primary

#665ECF

secondary

#D7DBAE

accent

#DD4AD3

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0C15

muted

#7E7D83

Preview Lab

Preview with #665ECF

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

Preview Lab → · Contrast checker → · Palette generator →