#6370DD#6370DD

#6370DD is a mid, vivid blue. Relative luminance 0.195; OKLCH L 59.0% C 0.165 H 275.1°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#6370DD
RGB	rgb(99, 112, 221)
HSL	hsl(234, 64%, 63%)
HSV	hsv(234, 55%, 87%)
CMYK	cmyk(55.2%, 49.3%, 0%, 13.3%)
CIE-LAB	lab(51.22, 26.23, -57.44)
CIE-LCH	lch(51.22, 63.14, 294.54°)
OKLab	oklab(58.96% 0.0145 -0.164)
OKLCH	oklch(58.96% 0.165 275.1)
XYZ	xyz(23.9867, 19.4598, 70.8847)
Luminance	0.1946 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6370DD #DDD063

analogous

#63ADDD #6370DD #9363DD

triadic

#6370DD #DD6370 #70DD63

tetradic

#6370DD #DD63AD #DDD063 #63DD93

square

#6370DD #DD63AD #DDD063 #63DD93

split-complementary

#6370DD #DD9363 #ADDD63

monochromatic

#2331A2 #3142D2 #6370DD #959EE8 #C7CCF3

Accessibility & contrast

On white

4.29

#6370DD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#6370DD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6370DD

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6370DD	#FFFFFF	#000000	##000000
##6370DD	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#397FE1

Deuteranopia (green-blind)

#2775DB

Tritanopia (blue-blind)

#21889C

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #6370dd;
/* rgb */ color: rgb(99, 112, 221);
/* oklch */ color: oklch(59.0% 0.165 275.1);

Tailwind

colors: {
  custom: {
    50: '#9898e8',
    500: '#6370dd',
    950: '#000000',
  },
}

SCSS

$custom: #6370dd;
$custom-light: #9898e8;
$custom-dark: #000000;

JSON

{
  "hex": "#6370dd",
  "rgb": {
    "r": 99,
    "g": 112,
    "b": 221
  },
  "hsl": {
    "h": 233.607,
    "s": 64.211,
    "l": 62.745
  },
  "oklch": {
    "l": 0.58956,
    "c": 0.16466,
    "h": 275.1
  },
  "luminance": 0.19461
}

Semantic roles & 50–950 ramp

primary

#6370DD

secondary

#E4DFB8

accent

#B919CC

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0F0D16

muted

#7E7E84

Preview Lab

Preview with #6370DD

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

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