#5551EC#5551EC

#5551EC is a mid, highly saturated blue. Relative luminance 0.139; OKLCH L 53.7% C 0.225 H 276.8°. Best body text is #FFFFFF at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#5551EC
RGB	rgb(85, 81, 236)
HSL	hsl(242, 80%, 62%)
HSV	hsv(242, 66%, 93%)
CMYK	cmyk(64%, 65.7%, 0%, 7.5%)
CIE-LAB	lab(44.05, 47.35, -77.59)
CIE-LCH	lch(44.05, 90.90, 301.39°)
OKLab	oklab(53.74% 0.0267 -0.2238)
OKLCH	oklch(53.74% 0.225 276.8)
XYZ	xyz(21.8241, 13.8705, 80.8678)
Luminance	0.1387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5551EC #E8EC51

analogous

#519BEC #5551EC #A251EC

triadic

#5551EC #EC5551 #51EC55

tetradic

#5551EC #EC519B #E8EC51 #51ECA2

square

#5551EC #EC519B #E8EC51 #51ECA2

split-complementary

#5551EC #ECA251 #9BEC51

monochromatic

#1713AF #1F1AE6 #5551EC #8B88F2 #C1BFF8

Accessibility & contrast

On white

5.56

#5551EC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.77

#5551EC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5551EC

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5551EC	#FFFFFF	#000000	##FFFFFF
##5551EC	1.00	5.56	3.77	5.56
#FFFFFF	5.56	1.00	21.00	1.00
#000000	3.77	21.00	1.00	21.00
##FFFFFF	5.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006FF1

Deuteranopia (green-blind)

#0061E9

Tritanopia (blue-blind)

#007A98

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #5551ec;
/* rgb */ color: rgb(85, 81, 236);
/* oklch */ color: oklch(53.7% 0.225 276.8);

Tailwind

colors: {
  custom: {
    50: '#9583f3',
    500: '#5551ec',
    950: '#000000',
  },
}

SCSS

$custom: #5551ec;
$custom-light: #9583f3;
$custom-dark: #000000;

JSON

{
  "hex": "#5551ec",
  "rgb": {
    "r": 85,
    "g": 81,
    "b": 236
  },
  "hsl": {
    "h": 241.548,
    "s": 80.311,
    "l": 62.157
  },
  "oklch": {
    "l": 0.53738,
    "c": 0.22541,
    "h": 276.8
  },
  "luminance": 0.13872
}

Semantic roles & 50–950 ramp

primary

#5551EC

secondary

#E7E9B0

accent

#DD09D7

background

#FAF8FF

surface

#F3EFFE

border

#CDCAD6

text

#0F0A17

muted

#7F7C85

Preview Lab

Preview with #5551EC

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

Preview Lab → · Contrast checker → · Palette generator →