#6370CF#6370CF

#6370CF is a mid, vivid blue. Relative luminance 0.187; OKLCH L 58.1% C 0.145 H 275.1°. Best body text is #000000 at 4.75:1 contrast (WCAG AA passes).

Color values

HEX	#6370CF
RGB	rgb(99, 112, 207)
HSL	hsl(233, 53%, 60%)
HSV	hsv(233, 52%, 81%)
CMYK	cmyk(52.2%, 45.9%, 0%, 18.8%)
CIE-LAB	lab(50.39, 21.77, -50.83)
CIE-LCH	lch(50.39, 55.30, 293.18°)
OKLab	oklab(58.06% 0.0129 -0.1446)
OKLCH	oklch(58.06% 0.145 275.1)
XYZ	xyz(22.1987, 18.7446, 61.4677)
Luminance	0.1875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370CF #CFC263

analogous

#63A6CF #6370CF #8C63CF

triadic

#6370CF #CF6370 #70CF63

tetradic

#6370CF #CF63A6 #CFC263 #63CF8C

square

#6370CF #CF63A6 #CFC263 #63CF8C

split-complementary

#6370CF #CF8C63 #A6CF63

monochromatic

#2B378C #3A49BB #6370CF #929BDD #C1C6EC

Accessibility & contrast

On white

4.42

#6370CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.75

#6370CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370CF

4.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370CF	#FFFFFF	#000000	##000000
##6370CF	1.00	4.42	4.75	4.75
#FFFFFF	4.42	1.00	21.00	21.00
#000000	4.75	21.00	1.00	1.00
##000000	4.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#467DD3

Deuteranopia (green-blind)

#3B74CD

Tritanopia (blue-blind)

#338595

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #6370cf;
/* rgb */ color: rgb(99, 112, 207);
/* oklch */ color: oklch(58.1% 0.145 275.1);

Tailwind

colors: {
  custom: {
    50: '#9698de',
    500: '#6370cf',
    950: '#000000',
  },
}

SCSS

$custom: #6370cf;
$custom-light: #9698de;
$custom-dark: #000000;

JSON

{
  "hex": "#6370cf",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 207
  },
  "hsl": {
    "h": 232.778,
    "s": 52.941,
    "l": 60
  },
  "oklch": {
    "l": 0.58055,
    "c": 0.14518,
    "h": 275.1
  },
  "luminance": 0.18746
}

Semantic roles & 50–950 ramp

primary

#6370CF

secondary

#DCD7B2

accent

#CB4BDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0D15

muted

#7E7E83

Preview Lab

Preview with #6370CF

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

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