#5551CE#5551CE

#5551CE is a mid, vivid blue. Relative luminance 0.123; OKLCH L 51.2% C 0.187 H 278.9°. Best body text is #FFFFFF at 6.08:1 contrast (WCAG AA passes).

Color values

HEX	#5551CE
RGB	rgb(85, 81, 206)
HSL	hsl(242, 56%, 56%)
HSV	hsv(242, 61%, 81%)
CMYK	cmyk(58.7%, 60.7%, 0%, 19.2%)
CIE-LAB	lab(41.64, 37.74, -64.41)
CIE-LCH	lch(41.64, 74.65, 300.37°)
OKLab	oklab(51.24% 0.029 -0.1851)
OKLCH	oklch(51.24% 0.187 278.9)
XYZ	xyz(17.8258, 12.2711, 59.8098)
Luminance	0.1227 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5551CE #CACE51

analogous

#518CCE #5551CE #9451CE

triadic

#5551CE #CE5551 #51CE55

tetradic

#5551CE #CE518C #CACE51 #51CE94

square

#5551CE #CE518C #CACE51 #51CE94

split-complementary

#5551CE #CE9451 #8CCE51

monochromatic

#272480 #3632B0 #5551CE #8481DB #B2B1E9

Accessibility & contrast

On white

6.08

#5551CE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.45

#5551CE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5551CE

6.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5551CE	#FFFFFF	#000000	##FFFFFF
##5551CE	1.00	6.08	3.45	6.08
#FFFFFF	6.08	1.00	21.00	1.00
#000000	3.45	21.00	1.00	21.00
##FFFFFF	6.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0067D2

Deuteranopia (green-blind)

#005DCB

Tritanopia (blue-blind)

#007088

Achromatopsia (no color)

#626262

Design tokens & code

CSS

--color: #5551ce;
/* rgb */ color: rgb(85, 81, 206);
/* oklch */ color: oklch(51.2% 0.187 278.9);

Tailwind

colors: {
  custom: {
    50: '#9082de',
    500: '#5551ce',
    950: '#000000',
  },
}

SCSS

$custom: #5551ce;
$custom-light: #9082de;
$custom-dark: #000000;

JSON

{
  "hex": "#5551ce",
  "rgb": {
    "r": 85,
    "g": 81,
    "b": 206
  },
  "hsl": {
    "h": 241.92,
    "s": 56.054,
    "l": 56.275
  },
  "oklch": {
    "l": 0.51239,
    "c": 0.1874,
    "h": 278.9
  },
  "luminance": 0.12272
}

Semantic roles & 50–950 ramp

primary

#5551CE

secondary

#D5D7A4

accent

#DF48DB

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5551CE

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

Preview Lab → · Contrast checker → · Palette generator →