#6478CC#6478CC

#6478CC is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.6% C 0.130 H 271.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#6478CC
RGB	rgb(100, 120, 204)
HSL	hsl(228, 50%, 60%)
HSV	hsv(228, 51%, 80%)
CMYK	cmyk(51%, 41.2%, 0%, 20%)
CIE-LAB	lab(52.40, 16.16, -45.92)
CIE-LCH	lch(52.40, 48.68, 289.39°)
OKLab	oklab(59.55% 0.0042 -0.1301)
OKLCH	oklch(59.55% 0.13 271.8)
XYZ	xyz(22.8676, 20.5004, 59.8670)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6478CC #CCB864

analogous

#64ACCC #6478CC #8464CC

triadic

#6478CC #CC6478 #78CC64

tetradic

#6478CC #CC64AC #CCB864 #64CC84

square

#6478CC #CC64AC #CCB864 #64CC84

split-complementary

#6478CC #CC8464 #ACCC64

monochromatic

#2D3F89 #3C54B7 #6478CC #92A0DB #C0C8EA

Accessibility & contrast

On white

4.12

#6478CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#6478CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6478CC

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6478CC	#FFFFFF	#000000	##000000
##6478CC	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5682CF

Deuteranopia (green-blind)

#4B79CA

Tritanopia (blue-blind)

#378A98

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #6478cc;
/* rgb */ color: rgb(100, 120, 204);
/* oklch */ color: oklch(59.6% 0.130 271.8);

Tailwind

colors: {
  custom: {
    50: '#969edc',
    500: '#6478cc',
    950: '#000000',
  },
}

SCSS

$custom: #6478cc;
$custom-light: #969edc;
$custom-dark: #000000;

JSON

{
  "hex": "#6478cc",
  "rgb": {
    "r": 100,
    "g": 120,
    "b": 204
  },
  "hsl": {
    "h": 228.462,
    "s": 50.485,
    "l": 59.608
  },
  "oklch": {
    "l": 0.59554,
    "c": 0.13019,
    "h": 271.8
  },
  "luminance": 0.20502
}

Semantic roles & 50–950 ramp

primary

#6478CC

secondary

#DAD2B2

accent

#BF4EDA

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #6478CC

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

Preview Lab → · Contrast checker → · Palette generator →