#5251BB#5251BB

#5251BB is a mid, vivid blue. Relative luminance 0.113; OKLCH L 49.5% C 0.163 H 279.1°. Best body text is #FFFFFF at 6.45:1 contrast (WCAG AA passes).

Color values

HEX	#5251BB
RGB	rgb(82, 81, 187)
HSL	hsl(241, 44%, 53%)
HSV	hsv(241, 57%, 73%)
CMYK	cmyk(56.1%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(40.02, 31.03, -56.01)
CIE-LCH	lch(40.02, 64.03, 298.99°)
OKLab	oklab(49.55% 0.0257 -0.1605)
OKLCH	oklch(49.55% 0.163 279.1)
XYZ	xyz(15.3889, 11.2655, 48.3676)
Luminance	0.1127 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5251BB #BABB51

analogous

#5185BB #5251BB #8751BB

triadic

#5251BB #BB5251 #51BB52

tetradic

#5251BB #BB5185 #BABB51 #51BB87

square

#5251BB #BB5185 #BABB51 #51BB87

split-complementary

#5251BB #BB8751 #85BB51

monochromatic

#2A2969 #3B3A95 #5251BB #7E7DCC #AAA9DD

Accessibility & contrast

On white

6.45

#5251BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.25

#5251BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5251BB

6.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5251BB	#FFFFFF	#000000	##FFFFFF
##5251BB	1.00	6.45	3.25	6.45
#FFFFFF	6.45	1.00	21.00	1.00
#000000	3.25	21.00	1.00	21.00
##FFFFFF	6.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#005AB9

Tritanopia (blue-blind)

#1B6A7E

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #5251bb;
/* rgb */ color: rgb(82, 81, 187);
/* oklch */ color: oklch(49.5% 0.163 279.1);

Tailwind

colors: {
  custom: {
    50: '#8c82d0',
    500: '#5251bb',
    950: '#000000',
  },
}

SCSS

$custom: #5251bb;
$custom-light: #8c82d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5251bb",
  "rgb": {
    "r": 82,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 240.566,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49545,
    "c": 0.16256,
    "h": 279.1
  },
  "luminance": 0.11267
}

Semantic roles & 50–950 ramp

primary

#5251BB

secondary

#CACB9D

accent

#D454D2

background

#F9F7FC

surface

#F1EEF9

border

#CBC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5251BB

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

Preview Lab → · Contrast checker → · Palette generator →