#6451CC#6451CC

#6451CC is a mid, vivid blue. Relative luminance 0.130; OKLCH L 52.3% C 0.183 H 285.2°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#6451CC
RGB	rgb(100, 81, 204)
HSL	hsl(249, 55%, 56%)
HSV	hsv(249, 60%, 80%)
CMYK	cmyk(51%, 60.3%, 0%, 20%)
CIE-LAB	lab(42.69, 39.85, -61.50)
CIE-LCH	lch(42.69, 73.28, 302.94°)
OKLab	oklab(52.26% 0.048 -0.1761)
OKLCH	oklch(52.26% 0.183 285.2)
XYZ	xyz(19.0938, 12.9528, 58.6091)
Luminance	0.1295 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6451CC #B9CC51

analogous

#517BCC #6451CC #A151CC

triadic

#6451CC #CC6451 #51CC64

tetradic

#6451CC #CC517B #B9CC51 #51CCA1

square

#6451CC #CC517B #B9CC51 #51CCA1

split-complementary

#6451CC #CCA151 #7BCC51

monochromatic

#33257E #4633AD #6451CC #8E80DA #B8B0E8

Accessibility & contrast

On white

5.85

#6451CC on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#6451CC on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6451CC

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6451CC	#FFFFFF	#000000	##FFFFFF
##6451CC	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068D0

Deuteranopia (green-blind)

#0061C9

Tritanopia (blue-blind)

#3C6E87

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #6451cc;
/* rgb */ color: rgb(100, 81, 204);
/* oklch */ color: oklch(52.3% 0.183 285.2);

Tailwind

colors: {
  custom: {
    50: '#9883dc',
    500: '#6451cc',
    950: '#000000',
  },
}

SCSS

$custom: #6451cc;
$custom-light: #9883dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6451cc",
  "rgb": {
    "r": 100,
    "g": 81,
    "b": 204
  },
  "hsl": {
    "h": 249.268,
    "s": 54.667,
    "l": 55.882
  },
  "oklch": {
    "l": 0.52261,
    "c": 0.18256,
    "h": 285.2
  },
  "luminance": 0.12954
}

Semantic roles & 50–950 ramp

primary

#6451CC

secondary

#CED6A3

accent

#DE4AC7

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0F0A15

muted

#7E7C83

Preview Lab

Preview with #6451CC

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

Preview Lab → · Contrast checker → · Palette generator →