#5151DE#5151DE

#5151DE is a mid, highly saturated blue. Relative luminance 0.129; OKLCH L 52.3% C 0.209 H 276.4°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#5151DE
RGB	rgb(81, 81, 222)
HSL	hsl(240, 68%, 59%)
HSV	hsv(240, 64%, 87%)
CMYK	cmyk(63.5%, 63.5%, 0%, 12.9%)
CIE-LAB	lab(42.62, 42.30, -72.00)
CIE-LCH	lch(42.62, 83.50, 300.43°)
OKLab	oklab(52.28% 0.0232 -0.2075)
OKLCH	oklch(52.28% 0.209 276.4)
XYZ	xyz(19.5163, 12.9065, 70.5558)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5151DE #DEDE51

analogous

#5198DE #5151DE #9851DE

triadic

#5151DE #DE5151 #51DE51

tetradic

#5151DE #DE5198 #DEDE51 #51DE98

square

#5151DE #DE5198 #DEDE51 #51DE98

split-complementary

#5151DE #DE9851 #98DE51

monochromatic

#1D1D98 #2727CB #5151DE #8484E8 #B8B8F2

Accessibility & contrast

On white

5.86

#5151DE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#5151DE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5151DE

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5151DE	#FFFFFF	#000000	##FFFFFF
##5151DE	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#006BE2

Deuteranopia (green-blind)

#005EDB

Tritanopia (blue-blind)

#007590

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #5151de;
/* rgb */ color: rgb(81, 81, 222);
/* oklch */ color: oklch(52.3% 0.209 276.4);

Tailwind

colors: {
  custom: {
    50: '#9182e9',
    500: '#5151de',
    950: '#000000',
  },
}

SCSS

$custom: #5151de;
$custom-light: #9182e9;
$custom-dark: #000000;

JSON

{
  "hex": "#5151de",
  "rgb": {
    "r": 81,
    "g": 81,
    "b": 222
  },
  "hsl": {
    "h": 240,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.52276,
    "c": 0.20883,
    "h": 276.4
  },
  "luminance": 0.12908
}

Semantic roles & 50–950 ramp

primary

#5151DE

secondary

#E1E1AA

accent

#EB3DEB

background

#F9F8FE

surface

#F2EFFD

border

#CCCAD5

text

#0E0A16

muted

#7E7C84

Preview Lab

Preview with #5151DE

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

Preview Lab → · Contrast checker → · Palette generator →