#6374F3#6374F3

#6374F3 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 61.2% C 0.189 H 273.7°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#6374F3
RGB	rgb(99, 116, 243)
HSL	hsl(233, 86%, 67%)
HSV	hsv(233, 59%, 95%)
CMYK	cmyk(59.3%, 52.3%, 0%, 4.7%)
CIE-LAB	lab(53.61, 30.90, -65.92)
CIE-LCH	lch(53.61, 72.80, 295.11°)
OKLab	oklab(61.2% 0.0122 -0.1889)
OKLCH	oklch(61.2% 0.189 273.7)
XYZ	xyz(27.5633, 21.6123, 87.4957)
Luminance	0.2161 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6374F3 #F3E263

analogous

#63BCF3 #6374F3 #9A63F3

triadic

#6374F3 #F36374 #74F363

tetradic

#6374F3 #F363BC #F3E263 #63F39A

square

#6374F3 #F363BC #F3E263 #63F39A

split-complementary

#6374F3 #F39A63 #BCF363

monochromatic

#1026CC #2A41EF #6374F3 #9CA7F7 #D5D9FC

Accessibility & contrast

On white

3.95

#6374F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#6374F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6374F3

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6374F3	#FFFFFF	#000000	##000000
##6374F3	1.00	3.95	5.32	5.32
#FFFFFF	3.95	1.00	21.00	21.00
#000000	5.32	21.00	1.00	1.00
##000000	5.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2687F7

Deuteranopia (green-blind)

#007AF0

Tritanopia (blue-blind)

#0091A8

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #6374f3;
/* rgb */ color: rgb(99, 116, 243);
/* oklch */ color: oklch(61.2% 0.189 273.7);

Tailwind

colors: {
  custom: {
    50: '#9b9bf8',
    500: '#6374f3',
    950: '#000000',
  },
}

SCSS

$custom: #6374f3;
$custom-light: #9b9bf8;
$custom-dark: #000000;

JSON

{
  "hex": "#6374f3",
  "rgb": {
    "r": 99,
    "g": 116,
    "b": 243
  },
  "hsl": {
    "h": 232.917,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.61203,
    "c": 0.1893,
    "h": 273.7
  },
  "luminance": 0.21614
}

Semantic roles & 50–950 ramp

primary

#6374F3

secondary

#F0EAC2

accent

#C803E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6374F3

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

Preview Lab → · Contrast checker → · Palette generator →