#6379EF#6379EF

#6379EF is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.9% C 0.178 H 272.3°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#6379EF
RGB	rgb(99, 121, 239)
HSL	hsl(231, 81%, 66%)
HSV	hsv(231, 59%, 94%)
CMYK	cmyk(58.6%, 49.4%, 0%, 6.3%)
CIE-LAB	lab(54.61, 26.56, -62.08)
CIE-LCH	lch(54.61, 67.52, 293.17°)
OKLab	oklab(61.88% 0.007 -0.1776)
OKLCH	oklch(61.88% 0.178 272.3)
XYZ	xyz(27.5578, 22.5572, 84.5464)
Luminance	0.2256 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6379EF #EFD963

analogous

#63BFEF #6379EF #9363EF

triadic

#6379EF #EF6379 #79EF63

tetradic

#6379EF #EF63BF #EFD963 #63EF93

square

#6379EF #EF63BF #EFD963 #63EF93

split-complementary

#6379EF #EF9363 #BFEF63

monochromatic

#1430C4 #2B49E9 #6379EF #9BA9F5 #D2D8FA

Accessibility & contrast

On white

3.81

#6379EF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#6379EF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6379EF

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6379EF	#FFFFFF	#000000	##000000
##6379EF	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B89F3

Deuteranopia (green-blind)

#1F7DED

Tritanopia (blue-blind)

#0094A9

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #6379ef;
/* rgb */ color: rgb(99, 121, 239);
/* oklch */ color: oklch(61.9% 0.178 272.3);

Tailwind

colors: {
  custom: {
    50: '#9b9ff5',
    500: '#6379ef',
    950: '#000000',
  },
}

SCSS

$custom: #6379ef;
$custom-light: #9b9ff5;
$custom-dark: #000000;

JSON

{
  "hex": "#6379ef",
  "rgb": {
    "r": 99,
    "g": 121,
    "b": 239
  },
  "hsl": {
    "h": 230.571,
    "s": 81.395,
    "l": 66.275
  },
  "oklch": {
    "l": 0.61877,
    "c": 0.17771,
    "h": 272.3
  },
  "luminance": 0.22559
}

Semantic roles & 50–950 ramp

primary

#6379EF

secondary

#EEE7C0

accent

#BC08DE

background

#FAF9FF

surface

#F4F2FE

border

#CECCD6

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6379EF

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

Preview Lab → · Contrast checker → · Palette generator →