#6377E7#6377E7

#6377E7 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 61.0% C 0.169 H 272.8°. Best body text is #000000 at 5.32:1 contrast (WCAG AA passes).

Color values

HEX	#6377E7
RGB	rgb(99, 119, 231)
HSL	hsl(231, 73%, 65%)
HSV	hsv(231, 57%, 91%)
CMYK	cmyk(57.1%, 48.5%, 0%, 9.4%)
CIE-LAB	lab(53.61, 25.18, -59.22)
CIE-LCH	lch(53.61, 64.35, 293.04°)
OKLab	oklab(60.96% 0.0082 -0.1692)
OKLCH	oklch(60.96% 0.169 272.8)
XYZ	xyz(26.1615, 21.6139, 78.3791)
Luminance	0.2162 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377E7 #E7D363

analogous

#63B9E7 #6377E7 #9163E7

triadic

#6377E7 #E76377 #77E763

tetradic

#6377E7 #E763B9 #E7D363 #63E791

square

#6377E7 #E763B9 #E7D363 #63E791

split-complementary

#6377E7 #E79163 #B9E763

monochromatic

#1C33B4 #2E49DF #6377E7 #98A5EF #CDD3F7

Accessibility & contrast

On white

3.94

#6377E7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.32

#6377E7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377E7

5.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377E7	#FFFFFF	#000000	##000000
##6377E7	1.00	3.94	5.32	5.32
#FFFFFF	3.94	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)

#3F86EB

Deuteranopia (green-blind)

#297BE5

Tritanopia (blue-blind)

#0090A4

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #6377e7;
/* rgb */ color: rgb(99, 119, 231);
/* oklch */ color: oklch(61.0% 0.169 272.8);

Tailwind

colors: {
  custom: {
    50: '#999eef',
    500: '#6377e7',
    950: '#000000',
  },
}

SCSS

$custom: #6377e7;
$custom-light: #999eef;
$custom-dark: #000000;

JSON

{
  "hex": "#6377e7",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 231
  },
  "hsl": {
    "h": 230.909,
    "s": 73.333,
    "l": 64.706
  },
  "oklch": {
    "l": 0.60964,
    "c": 0.16938,
    "h": 272.8
  },
  "luminance": 0.21616
}

Semantic roles & 50–950 ramp

primary

#6377E7

secondary

#EAE3BC

accent

#B810D5

background

#FAF9FE

surface

#F3F2FD

border

#CDCCD5

text

#0F0E16

muted

#7F7E84

Preview Lab

Preview with #6377E7

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

Preview Lab → · Contrast checker → · Palette generator →