#5451BB#5451BB

#5451BB is a mid, vivid blue. Relative luminance 0.114; OKLCH L 49.7% C 0.162 H 280.0°. Best body text is #FFFFFF at 6.42:1 contrast (WCAG AA passes).

Color values

HEX	#5451BB
RGB	rgb(84, 81, 187)
HSL	hsl(242, 44%, 53%)
HSV	hsv(242, 57%, 73%)
CMYK	cmyk(55.1%, 56.7%, 0%, 26.7%)
CIE-LAB	lab(40.17, 31.42, -55.76)
CIE-LCH	lch(40.17, 64.00, 299.40°)
OKLab	oklab(49.7% 0.0281 -0.1597)
OKLCH	oklch(49.7% 0.162 280)
XYZ	xyz(15.5654, 11.3565, 48.3759)
Luminance	0.1136 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5451BB #B8BB51

analogous

#5183BB #5451BB #8951BB

triadic

#5451BB #BB5451 #51BB54

tetradic

#5451BB #BB5183 #B8BB51 #51BB89

square

#5451BB #BB5183 #B8BB51 #51BB89

split-complementary

#5451BB #BB8951 #83BB51

monochromatic

#2B2969 #3D3A95 #5451BB #7F7DCC #AAA9DD

Accessibility & contrast

On white

6.42

#5451BB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.27

#5451BB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5451BB

6.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5451BB	#FFFFFF	#000000	##FFFFFF
##5451BB	1.00	6.42	3.27	6.42
#FFFFFF	6.42	1.00	21.00	1.00
#000000	3.27	21.00	1.00	21.00
##FFFFFF	6.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0063BF

Deuteranopia (green-blind)

#005BB9

Tritanopia (blue-blind)

#226A7E

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #5451bb;
/* rgb */ color: rgb(84, 81, 187);
/* oklch */ color: oklch(49.7% 0.162 280.0);

Tailwind

colors: {
  custom: {
    50: '#8d82d0',
    500: '#5451bb',
    950: '#000000',
  },
}

SCSS

$custom: #5451bb;
$custom-light: #8d82d0;
$custom-dark: #000000;

JSON

{
  "hex": "#5451bb",
  "rgb": {
    "r": 84,
    "g": 81,
    "b": 187
  },
  "hsl": {
    "h": 241.698,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.49695,
    "c": 0.16218,
    "h": 280
  },
  "luminance": 0.11358
}

Semantic roles & 50–950 ramp

primary

#5451BB

secondary

#CACB9D

accent

#D454D0

background

#F9F7FC

surface

#F1EEF9

border

#CBC9D2

text

#0D0A14

muted

#7E7C82

Preview Lab

Preview with #5451BB

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

Preview Lab → · Contrast checker → · Palette generator →