#6377F3#6377F3

#6377F3 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 61.8% C 0.186 H 272.9°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#6377F3
RGB	rgb(99, 119, 243)
HSL	hsl(232, 86%, 67%)
HSV	hsv(232, 59%, 95%)
CMYK	cmyk(59.3%, 51%, 0%, 4.7%)
CIE-LAB	lab(54.36, 29.08, -64.71)
CIE-LCH	lch(54.36, 70.95, 294.20°)
OKLab	oklab(61.77% 0.0093 -0.1853)
OKLCH	oklch(61.77% 0.186 272.9)
XYZ	xyz(27.9147, 22.3152, 87.6129)
Luminance	0.2232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377F3 #F3DF63

analogous

#63BFF3 #6377F3 #9763F3

triadic

#6377F3 #F36377 #77F363

tetradic

#6377F3 #F363BF #F3DF63 #63F397

square

#6377F3 #F363BF #F3DF63 #63F397

split-complementary

#6377F3 #F39763 #BFF363

monochromatic

#102ACC #2A45EF #6377F3 #9CA9F7 #D5DAFC

Accessibility & contrast

On white

3.84

#6377F3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#6377F3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377F3

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377F3	#FFFFFF	#000000	##000000
##6377F3	1.00	3.84	5.46	5.46
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3089F7

Deuteranopia (green-blind)

#017CF0

Tritanopia (blue-blind)

#0094AA

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #6377f3;
/* rgb */ color: rgb(99, 119, 243);
/* oklch */ color: oklch(61.8% 0.186 272.9);

Tailwind

colors: {
  custom: {
    50: '#9b9ef8',
    500: '#6377f3',
    950: '#000000',
  },
}

SCSS

$custom: #6377f3;
$custom-light: #9b9ef8;
$custom-dark: #000000;

JSON

{
  "hex": "#6377f3",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 243
  },
  "hsl": {
    "h": 231.667,
    "s": 85.714,
    "l": 67.059
  },
  "oklch": {
    "l": 0.61765,
    "c": 0.18557,
    "h": 272.9
  },
  "luminance": 0.22317
}

Semantic roles & 50–950 ramp

primary

#6377F3

secondary

#F0E9C2

accent

#C303E2

background

#FAF9FF

surface

#F4F2FF

border

#CECCD7

text

#0F0E17

muted

#7F7E85

Preview Lab

Preview with #6377F3

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

Preview Lab → · Contrast checker → · Palette generator →