#6351CB#6351CB

#6351CB is a mid, vivid blue. Relative luminance 0.128; OKLCH L 52.1% C 0.181 H 284.9°. Best body text is #FFFFFF at 5.88:1 contrast (WCAG AA passes).

Color values

HEX	#6351CB
RGB	rgb(99, 81, 203)
HSL	hsl(249, 54%, 56%)
HSV	hsv(249, 60%, 80%)
CMYK	cmyk(51.2%, 60.1%, 0%, 20.4%)
CIE-LAB	lab(42.53, 39.36, -61.18)
CIE-LCH	lch(42.53, 72.75, 302.75°)
OKLab	oklab(52.1% 0.0467 -0.1752)
OKLCH	oklch(52.1% 0.181 284.9)
XYZ	xyz(18.8643, 12.8483, 57.9743)
Luminance	0.1285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6351CB #B9CB51

analogous

#517CCB #6351CB #A051CB

triadic

#6351CB #CB6351 #51CB63

tetradic

#6351CB #CB517C #B9CB51 #51CBA0

square

#6351CB #CB517C #B9CB51 #51CBA0

split-complementary

#6351CB #CBA051 #7CCB51

monochromatic

#32257C #4533AC #6351CB #8D80D9 #B7AFE7

Accessibility & contrast

On white

5.88

#6351CB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.57

#6351CB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #6351CB

5.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6351CB	#FFFFFF	#000000	##FFFFFF
##6351CB	1.00	5.88	3.57	5.88
#FFFFFF	5.88	1.00	21.00	1.00
#000000	3.57	21.00	1.00	21.00
##FFFFFF	5.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0068CF

Deuteranopia (green-blind)

#0061C8

Tritanopia (blue-blind)

#3B6E86

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #6351cb;
/* rgb */ color: rgb(99, 81, 203);
/* oklch */ color: oklch(52.1% 0.181 284.9);

Tailwind

colors: {
  custom: {
    50: '#9882dc',
    500: '#6351cb',
    950: '#000000',
  },
}

SCSS

$custom: #6351cb;
$custom-light: #9882dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6351cb",
  "rgb": {
    "r": 99,
    "g": 81,
    "b": 203
  },
  "hsl": {
    "h": 248.852,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.52101,
    "c": 0.18136,
    "h": 284.9
  },
  "luminance": 0.12849
}

Semantic roles & 50–950 ramp

primary

#6351CB

secondary

#CED5A3

accent

#DD4AC8

background

#F9F8FD

surface

#F2EFFB

border

#CCCAD4

text

#0E0A15

muted

#7E7C83

Preview Lab

Preview with #6351CB

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

Preview Lab → · Contrast checker → · Palette generator →