#5A66DD#5A66DD

#5A66DD is a mid, vivid blue. Relative luminance 0.169; OKLCH L 56.5% C 0.180 H 274.8°. Best body text is #FFFFFF at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#5A66DD
RGB	rgb(90, 102, 221)
HSL	hsl(235, 66%, 61%)
HSV	hsv(235, 59%, 87%)
CMYK	cmyk(59.3%, 53.8%, 0%, 13.3%)
CIE-LAB	lab(48.13, 30.65, -62.45)
CIE-LCH	lch(48.13, 69.57, 296.14°)
OKLab	oklab(56.48% 0.0149 -0.1791)
OKLCH	oklch(56.48% 0.18 274.8)
XYZ	xyz(22.0147, 16.8952, 70.4936)
Luminance	0.1690 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66DD #DDD15A

analogous

#5AA7DD #5A66DD #8F5ADD

triadic

#5A66DD #DD5A66 #66DD5A

tetradic

#5A66DD #DD5AA7 #DDD15A #5ADD8F

square

#5A66DD #DD5AA7 #DDD15A #5ADD8F

split-complementary

#5A66DD #DD8F5A #A7DD5A

monochromatic

#202C9C #2B3ACF #5A66DD #8D95E7 #BFC4F2

Accessibility & contrast

On white

4.80

#5A66DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.38

#5A66DD on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5A66DD

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66DD	#FFFFFF	#000000	##FFFFFF
##5A66DD	1.00	4.80	4.38	4.80
#FFFFFF	4.80	1.00	21.00	1.00
#000000	4.38	21.00	1.00	21.00
##FFFFFF	4.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1578E1

Deuteranopia (green-blind)

#006DDB

Tritanopia (blue-blind)

#008298

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #5a66dd;
/* rgb */ color: rgb(90, 102, 221);
/* oklch */ color: oklch(56.5% 0.180 274.8);

Tailwind

colors: {
  custom: {
    50: '#9491e8',
    500: '#5a66dd',
    950: '#000000',
  },
}

SCSS

$custom: #5a66dd;
$custom-light: #9491e8;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66dd",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 221
  },
  "hsl": {
    "h": 234.504,
    "s": 65.829,
    "l": 60.98
  },
  "oklch": {
    "l": 0.56479,
    "c": 0.17971,
    "h": 274.8
  },
  "luminance": 0.16897
}

Semantic roles & 50–950 ramp

primary

#5A66DD

secondary

#E2DEB1

accent

#BD18CE

background

#F9F8FE

surface

#F2F0FD

border

#CCCBD5

text

#0E0C16

muted

#7E7D84

Preview Lab

Preview with #5A66DD

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

Preview Lab → · Contrast checker → · Palette generator →