#5A66BE#5A66BE

#5A66BE is a mid, vivid blue. Relative luminance 0.154; OKLCH L 54.4% C 0.137 H 275.1°. Best body text is #FFFFFF at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#5A66BE
RGB	rgb(90, 102, 190)
HSL	hsl(233, 43%, 55%)
HSV	hsv(233, 53%, 75%)
CMYK	cmyk(52.6%, 46.3%, 0%, 25.5%)
CIE-LAB	lab(46.17, 20.54, -47.85)
CIE-LCH	lch(46.17, 52.07, 293.23°)
OKLab	oklab(54.37% 0.0121 -0.1361)
OKLCH	oklch(54.37% 0.137 275.1)
XYZ	xyz(18.2591, 15.3929, 50.7142)
Luminance	0.1539 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66BE #BEB25A

analogous

#5A98BE #5A66BE #805ABE

triadic

#5A66BE #BE5A66 #66BE5A

tetradic

#5A66BE #BE5A98 #BEB25A #5ABE80

square

#5A66BE #BE5A98 #BEB25A #5ABE80

split-complementary

#5A66BE #BE805A #98BE5A

monochromatic

#2D3571 #3E499D #5A66BE #868FCF #B2B7E1

Accessibility & contrast

On white

5.15

#5A66BE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.08

#5A66BE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5A66BE

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66BE	#FFFFFF	#000000	##FFFFFF
##5A66BE	1.00	5.15	4.08	5.15
#FFFFFF	5.15	1.00	21.00	1.00
#000000	4.08	21.00	1.00	21.00
##FFFFFF	5.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3F72C1

Deuteranopia (green-blind)

#3469BC

Tritanopia (blue-blind)

#2D7989

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #5a66be;
/* rgb */ color: rgb(90, 102, 190);
/* oklch */ color: oklch(54.4% 0.137 275.1);

Tailwind

colors: {
  custom: {
    50: '#8f91d2',
    500: '#5a66be',
    950: '#000000',
  },
}

SCSS

$custom: #5a66be;
$custom-light: #8f91d2;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66be",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 190
  },
  "hsl": {
    "h": 232.8,
    "s": 43.478,
    "l": 54.902
  },
  "oklch": {
    "l": 0.54372,
    "c": 0.13666,
    "h": 275.1
  },
  "luminance": 0.15394
}

Semantic roles & 50–950 ramp

primary

#5A66BE

secondary

#CFCAA5

accent

#C455D3

background

#F9F8FC

surface

#F1F0F9

border

#CBCBD2

text

#0D0C14

muted

#7E7D82

Preview Lab

Preview with #5A66BE

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

Preview Lab → · Contrast checker → · Palette generator →