#6368DD#6368DD

#6368DD is a mid, vivid blue. Relative luminance 0.178; OKLCH L 57.5% C 0.175 H 277.5°. Best body text is #FFFFFF at 4.61:1 contrast (WCAG AA passes).

Color values

HEX	#6368DD
RGB	rgb(99, 104, 221)
HSL	hsl(238, 64%, 63%)
HSV	hsv(238, 55%, 87%)
CMYK	cmyk(55.2%, 52.9%, 0%, 13.3%)
CIE-LAB	lab(49.22, 31.11, -60.66)
CIE-LCH	lch(49.22, 68.17, 297.15°)
OKLab	oklab(57.45% 0.0229 -0.1736)
OKLCH	oklch(57.45% 0.175 277.5)
XYZ	xyz(23.1429, 17.7722, 70.6035)
Luminance	0.1777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6368DD #DDD863

analogous

#63A5DD #6368DD #9B63DD

triadic

#6368DD #DD6368 #68DD63

tetradic

#6368DD #DD63A5 #DDD863 #63DD9B

square

#6368DD #DD63A5 #DDD863 #63DD9B

split-complementary

#6368DD #DD9B63 #A5DD63

monochromatic

#2329A2 #3137D2 #6368DD #9599E8 #C7C9F3

Accessibility & contrast

On white

4.61

#6368DD on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.55

#6368DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #6368DD

4.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6368DD	#FFFFFF	#000000	##FFFFFF
##6368DD	1.00	4.61	4.55	4.61
#FFFFFF	4.61	1.00	21.00	1.00
#000000	4.55	21.00	1.00	21.00
##FFFFFF	4.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#237AE1

Deuteranopia (green-blind)

#0070DB

Tritanopia (blue-blind)

#238398

Achromatopsia (no color)

#757575

Design tokens & code

CSS

--color: #6368dd;
/* rgb */ color: rgb(99, 104, 221);
/* oklch */ color: oklch(57.5% 0.175 277.5);

Tailwind

colors: {
  custom: {
    50: '#9993e8',
    500: '#6368dd',
    950: '#000000',
  },
}

SCSS

$custom: #6368dd;
$custom-light: #9993e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6368dd",
  "rgb": {
    "r": 99,
    "g": 104,
    "b": 221
  },
  "hsl": {
    "h": 237.541,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.5745,
    "c": 0.17507,
    "h": 277.5
  },
  "luminance": 0.17774
}

Semantic roles & 50–950 ramp

primary

#6368DD

secondary

#E4E2B8

accent

#C519CC

background

#F9F9FE

surface

#F2F1FD

border

#CCCBD5

text

#0F0D16

muted

#7E7E84

Preview Lab

Preview with #6368DD

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

Preview Lab → · Contrast checker → · Palette generator →