#5251CB#5251CB

#5251CB is a mid, vivid blue. Relative luminance 0.120; OKLCH L 50.8% C 0.184 H 278.0°. Best body text is #FFFFFF at 6.18:1 contrast (WCAG AA passes).

Color values

HEX	#5251CB
RGB	rgb(82, 81, 203)
HSL	hsl(240, 54%, 56%)
HSV	hsv(240, 60%, 80%)
CMYK	cmyk(59.6%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(41.20, 36.26, -63.41)
CIE-LCH	lch(41.20, 73.04, 299.76°)
OKLab	oklab(50.79% 0.0255 -0.1823)
OKLCH	oklch(50.79% 0.184 278)
XYZ	xyz(17.1981, 11.9892, 57.8962)
Luminance	0.1199 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5251CB #CACB51

analogous

#518DCB #5251CB #8F51CB

triadic

#5251CB #CB5251 #51CB52

tetradic

#5251CB #CB518D #CACB51 #51CB8F

square

#5251CB #CB518D #CACB51 #51CB8F

split-complementary

#5251CB #CB8F51 #8DCB51

monochromatic

#26257C #3433AC #5251CB #8180D9 #B0AFE7

Accessibility & contrast

On white

6.18

#5251CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.40

#5251CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5251CB

6.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5251CB	#FFFFFF	#000000	##FFFFFF
##5251CB	1.00	6.18	3.40	6.18
#FFFFFF	6.18	1.00	21.00	1.00
#000000	3.40	21.00	1.00	21.00
##FFFFFF	6.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#005CC9

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5251cb;
/* rgb */ color: rgb(82, 81, 203);
/* oklch */ color: oklch(50.8% 0.184 278.0);

Tailwind

colors: {
  custom: {
    50: '#8e82dc',
    500: '#5251cb',
    950: '#000000',
  },
}

SCSS

$custom: #5251cb;
$custom-light: #8e82dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5251cb",
  "rgb": {
    "r": 82,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 240.492,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.50785,
    "c": 0.18406,
    "h": 278
  },
  "luminance": 0.1199
}

Semantic roles & 50–950 ramp

primary

#5251CB

secondary

#D5D5A3

accent

#DD4ADC

background

#F9F7FD

surface

#F2EEFB

border

#CCC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #5251CB

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

Preview Lab → · Contrast checker → · Palette generator →