#6370CE#6370CE

#6370CE is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.0% C 0.144 H 275.1°. Best body text is #000000 at 4.74:1 contrast (WCAG AA passes).

Color values

HEX	#6370CE
RGB	rgb(99, 112, 206)
HSL	hsl(233, 52%, 60%)
HSV	hsv(233, 52%, 81%)
CMYK	cmyk(51.9%, 45.6%, 0%, 19.2%)
CIE-LAB	lab(50.33, 21.45, -50.36)
CIE-LCH	lch(50.33, 54.73, 293.07°)
OKLab	oklab(57.99% 0.0127 -0.1432)
OKLCH	oklch(57.99% 0.144 275.1)
XYZ	xyz(22.0768, 18.6958, 60.8259)
Luminance	0.1870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370CE #CEC163

analogous

#63A6CE #6370CE #8B63CE

triadic

#6370CE #CE6370 #70CE63

tetradic

#6370CE #CE63A6 #CEC163 #63CE8B

square

#6370CE #CE63A6 #CEC163 #63CE8B

split-complementary

#6370CE #CE8B63 #A6CE63

monochromatic

#2C378B #3A4ABA #6370CE #929BDD #C0C5EB

Accessibility & contrast

On white

4.43

#6370CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.74

#6370CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370CE

4.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370CE	#FFFFFF	#000000	##000000
##6370CE	1.00	4.43	4.74	4.74
#FFFFFF	4.43	1.00	21.00	21.00
#000000	4.74	21.00	1.00	1.00
##000000	4.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#477CD1

Deuteranopia (green-blind)

#3C74CC

Tritanopia (blue-blind)

#348495

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6370ce;
/* rgb */ color: rgb(99, 112, 206);
/* oklch */ color: oklch(58.0% 0.144 275.1);

Tailwind

colors: {
  custom: {
    50: '#9698dd',
    500: '#6370ce',
    950: '#000000',
  },
}

SCSS

$custom: #6370ce;
$custom-light: #9698dd;
$custom-dark: #000000;

JSON

{
  "hex": "#6370ce",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 206
  },
  "hsl": {
    "h": 232.71,
    "s": 52.195,
    "l": 59.804
  },
  "oklch": {
    "l": 0.57993,
    "c": 0.14377,
    "h": 275.1
  },
  "luminance": 0.18697
}

Semantic roles & 50–950 ramp

primary

#6370CE

secondary

#DBD6B2

accent

#CA4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #6370CE

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

Preview Lab → · Contrast checker → · Palette generator →