#665AEF#665AEF

#665AEF is a mid, highly saturated blue. Relative luminance 0.164; OKLCH L 56.6% C 0.215 H 280.6°. Best body text is #FFFFFF at 4.91:1 contrast (WCAG AA passes).

Color values

HEX	#665AEF
RGB	rgb(102, 90, 239)
HSL	hsl(245, 82%, 65%)
HSV	hsv(245, 62%, 94%)
CMYK	cmyk(57.3%, 62.3%, 0%, 6.3%)
CIE-LAB	lab(47.45, 45.62, -73.66)
CIE-LCH	lch(47.45, 86.64, 301.77°)
OKLab	oklab(56.6% 0.0397 -0.2118)
OKLCH	oklch(56.6% 0.216 280.6)
XYZ	xyz(24.7108, 16.3674, 83.5017)
Luminance	0.1637 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#665AEF #E3EF5A

analogous

#5A99EF #665AEF #B05AEF

triadic

#665AEF #EF665A #5AEF66

tetradic

#665AEF #EF5A99 #E3EF5A #5AEFB0

square

#665AEF #EF5A99 #E3EF5A #5AEFB0

split-complementary

#665AEF #EFB05A #99EF5A

monochromatic

#2012BC #3222EA #665AEF #9A92F4 #CDCAFA

Accessibility & contrast

On white

4.91

#665AEF on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#665AEF on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #665AEF

4.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##665AEF	#FFFFFF	#000000	##FFFFFF
##665AEF	1.00	4.91	4.27	4.91
#FFFFFF	4.91	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0076F4

Deuteranopia (green-blind)

#006BEC

Tritanopia (blue-blind)

#0F7F9C

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #665aef;
/* rgb */ color: rgb(102, 90, 239);
/* oklch */ color: oklch(56.6% 0.215 280.6);

Tailwind

colors: {
  custom: {
    50: '#9e89f5',
    500: '#665aef',
    950: '#000000',
  },
}

SCSS

$custom: #665aef;
$custom-light: #9e89f5;
$custom-dark: #000000;

JSON

{
  "hex": "#665aef",
  "rgb": {
    "r": 102,
    "g": 90,
    "b": 239
  },
  "hsl": {
    "h": 244.832,
    "s": 82.32,
    "l": 64.51
  },
  "oklch": {
    "l": 0.56601,
    "c": 0.2155,
    "h": 280.6
  },
  "luminance": 0.16369
}

Semantic roles & 50–950 ramp

primary

#665AEF

secondary

#E8ECB9

accent

#DF07CD

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#100C17

muted

#7F7D85

Preview Lab

Preview with #665AEF

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

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