#5451CB#5451CB

#5451CB is a mid, vivid blue. Relative luminance 0.121; OKLCH L 50.9% C 0.184 H 278.7°. Best body text is #FFFFFF at 6.15:1 contrast (WCAG AA passes).

Color values

HEX	#5451CB
RGB	rgb(84, 81, 203)
HSL	hsl(241, 54%, 56%)
HSV	hsv(241, 60%, 80%)
CMYK	cmyk(58.6%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(41.34, 36.60, -63.17)
CIE-LCH	lch(41.34, 73.01, 300.09°)
OKLab	oklab(50.93% 0.0279 -0.1815)
OKLCH	oklch(50.93% 0.184 278.7)
XYZ	xyz(17.3746, 12.0802, 57.9045)
Luminance	0.1208 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5451CB #C8CB51

analogous

#518BCB #5451CB #9151CB

triadic

#5451CB #CB5451 #51CB54

tetradic

#5451CB #CB518B #C8CB51 #51CB91

square

#5451CB #CB518B #C8CB51 #51CB91

split-complementary

#5451CB #CB9151 #8BCB51

monochromatic

#27257C #3633AC #5451CB #8280D9 #B1AFE7

Accessibility & contrast

On white

6.15

#5451CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.42

#5451CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #5451CB

6.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5451CB	#FFFFFF	#000000	##FFFFFF
##5451CB	1.00	6.15	3.42	6.15
#FFFFFF	6.15	1.00	21.00	1.00
#000000	3.42	21.00	1.00	21.00
##FFFFFF	6.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066CF

Deuteranopia (green-blind)

#005DC9

Tritanopia (blue-blind)

#006F86

Achromatopsia (no color)

#616161

Design tokens & code

CSS

--color: #5451cb;
/* rgb */ color: rgb(84, 81, 203);
/* oklch */ color: oklch(50.9% 0.184 278.7);

Tailwind

colors: {
  custom: {
    50: '#8f82dc',
    500: '#5451cb',
    950: '#000000',
  },
}

SCSS

$custom: #5451cb;
$custom-light: #8f82dc;
$custom-dark: #000000;

JSON

{
  "hex": "#5451cb",
  "rgb": {
    "r": 84,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 241.475,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.50928,
    "c": 0.18365,
    "h": 278.7
  },
  "luminance": 0.12081
}

Semantic roles & 50–950 ramp

primary

#5451CB

secondary

#D4D5A3

accent

#DD4ADA

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #5451CB

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

Preview Lab → · Contrast checker → · Palette generator →