#6370E4#6370E4

#6370E4 is a mid, vivid blue. Relative luminance 0.198; OKLCH L 59.4% C 0.174 H 275.0°. Best body text is #000000 at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#6370E4
RGB	rgb(99, 112, 228)
HSL	hsl(234, 70%, 64%)
HSV	hsv(234, 57%, 89%)
CMYK	cmyk(56.6%, 50.9%, 0%, 10.6%)
CIE-LAB	lab(51.66, 28.47, -60.68)
CIE-LCH	lch(51.66, 67.03, 295.14°)
OKLab	oklab(59.42% 0.0151 -0.1736)
OKLCH	oklch(59.42% 0.174 275)
XYZ	xyz(24.9388, 19.8406, 75.8992)
Luminance	0.1984 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370E4 #E4D763

analogous

#63B1E4 #6370E4 #9663E4

triadic

#6370E4 #E46370 #70E463

tetradic

#6370E4 #E463B1 #E4D763 #63E496

square

#6370E4 #E463B1 #E4D763 #63E496

split-complementary

#6370E4 #E49663 #B1E463

monochromatic

#1E2DAE #2F40DB #6370E4 #97A0ED #CBD0F6

Accessibility & contrast

On white

4.23

#6370E4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.97

#6370E4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370E4

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370E4	#FFFFFF	#000000	##000000
##6370E4	1.00	4.23	4.97	4.97
#FFFFFF	4.23	1.00	21.00	21.00
#000000	4.97	21.00	1.00	1.00
##000000	4.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3181E8

Deuteranopia (green-blind)

#1776E2

Tritanopia (blue-blind)

#118A9F

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #6370e4;
/* rgb */ color: rgb(99, 112, 228);
/* oklch */ color: oklch(59.4% 0.174 275.0);

Tailwind

colors: {
  custom: {
    50: '#9998ed',
    500: '#6370e4',
    950: '#000000',
  },
}

SCSS

$custom: #6370e4;
$custom-light: #9998ed;
$custom-dark: #000000;

JSON

{
  "hex": "#6370e4",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 228
  },
  "hsl": {
    "h": 233.953,
    "s": 70.492,
    "l": 64.118
  },
  "oklch": {
    "l": 0.59424,
    "c": 0.17422,
    "h": 275
  },
  "luminance": 0.19842
}

Semantic roles & 50–950 ramp

primary

#6370E4

secondary

#E8E3BB

accent

#BF13D3

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D16

muted

#7F7E84

Preview Lab

Preview with #6370E4

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

Preview Lab → · Contrast checker → · Palette generator →