#6451CB#6451CB

#6451CB is a mid, vivid blue. Relative luminance 0.129; OKLCH L 52.2% C 0.181 H 285.4°. Best body text is #FFFFFF at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#6451CB
RGB	rgb(100, 81, 203)
HSL	hsl(249, 54%, 56%)
HSV	hsv(249, 60%, 80%)
CMYK	cmyk(50.7%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(42.62, 39.55, -61.04)
CIE-LCH	lch(42.62, 72.73, 302.94°)
OKLab	oklab(52.19% 0.048 -0.1748)
OKLCH	oklch(52.19% 0.181 285.4)
XYZ	xyz(18.9742, 12.9050, 57.9795)
Luminance	0.1291 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6451CB #B8CB51

analogous

#517BCB #6451CB #A151CB

triadic

#6451CB #CB6451 #51CB64

tetradic

#6451CB #CB517B #B8CB51 #51CBA1

square

#6451CB #CB517B #B8CB51 #51CBA1

split-complementary

#6451CB #CBA151 #7BCB51

monochromatic

#33257C #4633AC #6451CB #8E80D9 #B8AFE7

Accessibility & contrast

On white

5.86

#6451CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#6451CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6451CB

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6451CB	#FFFFFF	#000000	##FFFFFF
##6451CB	1.00	5.86	3.58	5.86
#FFFFFF	5.86	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#0061C8

Tritanopia (blue-blind)

#3D6E86

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #6451cb;
/* rgb */ color: rgb(100, 81, 203);
/* oklch */ color: oklch(52.2% 0.181 285.4);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#6451cb",
  "rgb": {
    "r": 100,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 249.344,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52185,
    "c": 0.18127,
    "h": 285.4
  },
  "luminance": 0.12906
}

Semantic roles & 50–950 ramp

primary

#6451CB

secondary

#CDD5A3

accent

#DD4AC6

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #6451CB

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

Preview Lab → · Contrast checker → · Palette generator →