#6370E9#6370E9

#6370E9 is a mid, vivid blue. Relative luminance 0.201; OKLCH L 59.8% C 0.181 H 274.9°. Best body text is #000000 at 5.02:1 contrast (WCAG AA passes).

Color values

HEX	#6370E9
RGB	rgb(99, 112, 233)
HSL	hsl(234, 75%, 65%)
HSV	hsv(234, 58%, 91%)
CMYK	cmyk(57.5%, 51.9%, 0%, 8.6%)
CIE-LAB	lab(51.98, 30.09, -62.98)
CIE-LCH	lch(51.98, 69.79, 295.54°)
OKLab	oklab(59.77% 0.0155 -0.1803)
OKLCH	oklch(59.77% 0.181 274.9)
XYZ	xyz(25.6430, 20.1223, 79.6077)
Luminance	0.2012 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370E9 #E9DC63

analogous

#63B3E9 #6370E9 #9963E9

triadic

#6370E9 #E96370 #70E963

tetradic

#6370E9 #E963B3 #E9DC63 #63E999

square

#6370E9 #E963B3 #E9DC63 #63E999

split-complementary

#6370E9 #E99963 #B3E963

monochromatic

#1A29B8 #2D3FE1 #6370E9 #99A1F1 #CED2F8

Accessibility & contrast

On white

4.18

#6370E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.02

#6370E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370E9

5.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370E9	#FFFFFF	#000000	##000000
##6370E9	1.00	4.18	5.02	5.02
#FFFFFF	4.18	1.00	21.00	21.00
#000000	5.02	21.00	1.00	1.00
##000000	5.02	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2982ED

Deuteranopia (green-blind)

#0076E6

Tritanopia (blue-blind)

#008CA2

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #6370e9;
/* rgb */ color: rgb(99, 112, 233);
/* oklch */ color: oklch(59.8% 0.181 274.9);

Tailwind

colors: {
  custom: {
    50: '#9a98f1',
    500: '#6370e9',
    950: '#000000',
  },
}

SCSS

$custom: #6370e9;
$custom-light: #9a98f1;
$custom-dark: #000000;

JSON

{
  "hex": "#6370e9",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 233
  },
  "hsl": {
    "h": 234.179,
    "s": 75.281,
    "l": 65.098
  },
  "oklch": {
    "l": 0.59766,
    "c": 0.18096,
    "h": 274.9
  },
  "luminance": 0.20124
}

Semantic roles & 50–950 ramp

primary

#6370E9

secondary

#EBE6BD

accent

#C40ED7

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0D17

muted

#7F7E85

Preview Lab

Preview with #6370E9

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

Preview Lab → · Contrast checker → · Palette generator →