#6381CD#6381CD

#6381CD is a mid, vivid blue. Relative luminance 0.228; OKLCH L 61.4% C 0.121 H 266.6°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#6381CD
RGB	rgb(99, 129, 205)
HSL	hsl(223, 51%, 60%)
HSV	hsv(223, 52%, 80%)
CMYK	cmyk(51.7%, 37.1%, 0%, 19.6%)
CIE-LAB	lab(54.82, 10.81, -42.65)
CIE-LCH	lch(54.82, 44.00, 284.22°)
OKLab	oklab(61.42% -0.0072 -0.1205)
OKLCH	oklch(61.42% 0.121 266.6)
XYZ	xyz(24.0117, 22.7593, 60.8735)
Luminance	0.2276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6381CD #CDAF63

analogous

#63B6CD #6381CD #7A63CD

triadic

#6381CD #CD6381 #81CD63

tetradic

#6381CD #CD63B6 #CDAF63 #63CD7A

square

#6381CD #CD63B6 #CDAF63 #63CD7A

split-complementary

#6381CD #CD7A63 #B6CD63

monochromatic

#2C478A #3B5EB8 #6381CD #91A6DC #C0CCEB

Accessibility & contrast

On white

3.78

#6381CD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#6381CD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6381CD

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6381CD	#FFFFFF	#000000	##000000
##6381CD	1.00	3.78	5.55	5.55
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6388D0

Deuteranopia (green-blind)

#577FCB

Tritanopia (blue-blind)

#31919D

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #6381cd;
/* rgb */ color: rgb(99, 129, 205);
/* oklch */ color: oklch(61.4% 0.121 266.6);

Tailwind

colors: {
  custom: {
    50: '#96a5dc',
    500: '#6381cd',
    950: '#000000',
  },
}

SCSS

$custom: #6381cd;
$custom-light: #96a5dc;
$custom-dark: #000000;

JSON

{
  "hex": "#6381cd",
  "rgb": {
    "r": 99,
    "g": 129,
    "b": 205
  },
  "hsl": {
    "h": 223.019,
    "s": 51.456,
    "l": 59.608
  },
  "oklch": {
    "l": 0.61423,
    "c": 0.12073,
    "h": 266.6
  },
  "luminance": 0.22761
}

Semantic roles & 50–950 ramp

primary

#6381CD

secondary

#DACFB1

accent

#B34DDB

background

#F9FAFD

surface

#F2F4FB

border

#CCCED4

text

#0E0F15

muted

#7E7F83

Preview Lab

Preview with #6381CD

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

Preview Lab → · Contrast checker → · Palette generator →