#6377DC#6377DC

#6377DC is a mid, vivid blue. Relative luminance 0.210; OKLCH L 60.3% C 0.154 H 272.5°. Best body text is #000000 at 5.20:1 contrast (WCAG AA passes).

Color values

HEX	#6377DC
RGB	rgb(99, 119, 220)
HSL	hsl(230, 63%, 63%)
HSV	hsv(230, 55%, 86%)
CMYK	cmyk(55%, 45.9%, 0%, 13.7%)
CIE-LAB	lab(52.96, 21.63, -54.08)
CIE-LCH	lch(52.96, 58.25, 291.80°)
OKLab	oklab(60.26% 0.0069 -0.1541)
OKLCH	oklch(60.26% 0.154 272.5)
XYZ	xyz(24.6565, 21.0118, 70.4527)
Luminance	0.2101 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6377DC #DCC863

analogous

#63B3DC #6377DC #8C63DC

triadic

#6377DC #DC6377 #77DC63

tetradic

#6377DC #DC63B3 #DCC863 #63DC8C

square

#6377DC #DC63B3 #DCC863 #63DC8C

split-complementary

#6377DC #DC8C63 #B3DC63

monochromatic

#2439A1 #314BD1 #6377DC #95A3E7 #C7CEF2

Accessibility & contrast

On white

4.04

#6377DC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.20

#6377DC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6377DC

5.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6377DC	#FFFFFF	#000000	##000000
##6377DC	1.00	4.04	5.20	5.20
#FFFFFF	4.04	1.00	21.00	21.00
#000000	5.20	21.00	1.00	1.00
##000000	5.20	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4984E0

Deuteranopia (green-blind)

#397ADA

Tritanopia (blue-blind)

#208D9F

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #6377dc;
/* rgb */ color: rgb(99, 119, 220);
/* oklch */ color: oklch(60.3% 0.154 272.5);

Tailwind

colors: {
  custom: {
    50: '#989de7',
    500: '#6377dc',
    950: '#000000',
  },
}

SCSS

$custom: #6377dc;
$custom-light: #989de7;
$custom-dark: #000000;

JSON

{
  "hex": "#6377dc",
  "rgb": {
    "r": 99,
    "g": 119,
    "b": 220
  },
  "hsl": {
    "h": 230.083,
    "s": 63.351,
    "l": 62.549
  },
  "oklch": {
    "l": 0.60258,
    "c": 0.15424,
    "h": 272.5
  },
  "luminance": 0.21014
}

Semantic roles & 50–950 ramp

primary

#6377DC

secondary

#E3DCB7

accent

#AE1ACB

background

#F9F9FE

surface

#F2F2FC

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #6377DC

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

Preview Lab → · Contrast checker → · Palette generator →