#665ACE#665ACE

#665ACE is a mid, vivid blue. Relative luminance 0.146; OKLCH L 54.1% C 0.173 H 283.7°. Best body text is #FFFFFF at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#665ACE
RGB	rgb(102, 90, 206)
HSL	hsl(246, 54%, 58%)
HSV	hsv(246, 56%, 81%)
CMYK	cmyk(50.5%, 56.3%, 0%, 19.2%)
CIE-LAB	lab(45.07, 35.51, -58.79)
CIE-LCH	lch(45.07, 68.68, 301.13°)
OKLab	oklab(54.1% 0.0409 -0.1681)
OKLCH	oklch(54.1% 0.173 283.7)
XYZ	xyz(20.2729, 14.5923, 60.1289)
Luminance	0.1459 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665ACE #C2CE5A

analogous

#5A88CE #665ACE #A05ACE

triadic

#665ACE #CE665A #5ACE66

tetradic

#665ACE #CE5A88 #C2CE5A #5ACEA0

square

#665ACE #CE5A88 #C2CE5A #5ACEA0

split-complementary

#665ACE #CEA05A #88CE5A

monochromatic

#312886 #4336B5 #665ACE #9289DC #BEB8EA

Accessibility & contrast

On white

5.36

#665ACE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.92

#665ACE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665ACE

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665ACE	#FFFFFF	#000000	##FFFFFF
##665ACE	1.00	5.36	3.92	5.36
#FFFFFF	5.36	1.00	21.00	1.00
#000000	3.92	21.00	1.00	21.00
##FFFFFF	5.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#056ED2

Deuteranopia (green-blind)

#0067CC

Tritanopia (blue-blind)

#3E748B

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #665ace;
/* rgb */ color: rgb(102, 90, 206);
/* oklch */ color: oklch(54.1% 0.173 283.7);

Tailwind

colors: {
  custom: {
    50: '#9989de',
    500: '#665ace',
    950: '#000000',
  },
}

SCSS

$custom: #665ace;
$custom-light: #9989de;
$custom-dark: #000000;

JSON

{
  "hex": "#665ace",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 206
  },
  "hsl": {
    "h": 246.207,
    "s": 54.206,
    "l": 58.039
  },
  "oklch": {
    "l": 0.54099,
    "c": 0.17298,
    "h": 283.7
  },
  "luminance": 0.14593
}

Semantic roles & 50–950 ramp

primary

#665ACE

secondary

#D4D9AB

accent

#DE4ACE

background

#F9F8FD

surface

#F2F0FB

border

#CCCBD4

text

#0F0B15

muted

#7E7C83

Preview Lab

Preview with #665ACE

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

Preview Lab → · Contrast checker → · Palette generator →