#5A66F6#5A66F6

#5A66F6 is a mid, highly saturated blue. Relative luminance 0.183; OKLCH L 58.3% C 0.213 H 274.1°. Best body text is #000000 at 4.67:1 contrast (WCAG AA passes).

Color values

HEX	#5A66F6
RGB	rgb(90, 102, 246)
HSL	hsl(235, 90%, 66%)
HSV	hsv(235, 63%, 96%)
CMYK	cmyk(63.4%, 58.5%, 0%, 3.5%)
CIE-LAB	lab(49.89, 38.87, -73.64)
CIE-LCH	lch(49.89, 83.27, 297.83°)
OKLab	oklab(58.35% 0.0153 -0.212)
OKLCH	oklch(58.35% 0.213 274.1)
XYZ	xyz(25.5969, 18.3280, 89.3597)
Luminance	0.1833 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5A66F6 #F6EA5A

analogous

#5AB4F6 #5A66F6 #9C5AF6

triadic

#5A66F6 #F65A66 #66F65A

tetradic

#5A66F6 #F65AB4 #F6EA5A #5AF69C

square

#5A66F6 #F65AB4 #F6EA5A #5AF69C

split-complementary

#5A66F6 #F69C5A #B4F65A

monochromatic

#0B1ACB #2030F3 #5A66F6 #949CF9 #CED2FC

Accessibility & contrast

On white

4.50

#5A66F6 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.67

#5A66F6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #5A66F6

4.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5A66F6	#FFFFFF	#000000	##000000
##5A66F6	1.00	4.50	4.67	4.67
#FFFFFF	4.50	1.00	21.00	21.00
#000000	4.67	21.00	1.00	1.00
##000000	4.67	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#007EFB

Deuteranopia (green-blind)

#0070F3

Tritanopia (blue-blind)

#0089A4

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #5a66f6;
/* rgb */ color: rgb(90, 102, 246);
/* oklch */ color: oklch(58.3% 0.213 274.1);

Tailwind

colors: {
  custom: {
    50: '#9891fa',
    500: '#5a66f6',
    950: '#000000',
  },
}

SCSS

$custom: #5a66f6;
$custom-light: #9891fa;
$custom-dark: #000000;

JSON

{
  "hex": "#5a66f6",
  "rgb": {
    "r": 90,
    "g": 102,
    "b": 246
  },
  "hsl": {
    "h": 235.385,
    "s": 89.655,
    "l": 65.882
  },
  "oklch": {
    "l": 0.58349,
    "c": 0.21255,
    "h": 274.1
  },
  "luminance": 0.1833
}

Semantic roles & 50–950 ramp

primary

#5A66F6

secondary

#F0ECBC

accent

#D400E6

background

#FAF8FF

surface

#F4F0FF

border

#CECBD7

text

#0F0D17

muted

#7F7D85

Preview Lab

Preview with #5A66F6

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

Preview Lab → · Contrast checker → · Palette generator →