#6378CE#6378CE

#6378CE is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.6% C 0.133 H 271.5°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#6378CE
RGB	rgb(99, 120, 206)
HSL	hsl(228, 52%, 60%)
HSV	hsv(228, 52%, 81%)
CMYK	cmyk(51.9%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(52.44, 16.56, -46.99)
CIE-LCH	lch(52.44, 49.82, 289.42°)
OKLab	oklab(59.61% 0.0035 -0.1333)
OKLCH	oklch(59.61% 0.133 271.5)
XYZ	xyz(22.9990, 20.5403, 61.1333)
Luminance	0.2054 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6378CE #CEB963

analogous

#63AECE #6378CE #8363CE

triadic

#6378CE #CE6378 #78CE63

tetradic

#6378CE #CE63AE #CEB963 #63CE83

square

#6378CE #CE63AE #CEB963 #63CE83

split-complementary

#6378CE #CE8363 #AECE63

monochromatic

#2C3E8B #3A53BA #6378CE #92A0DD #C0C9EB

Accessibility & contrast

On white

4.11

#6378CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#6378CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #6378CE

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6378CE	#FFFFFF	#000000	##000000
##6378CE	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5582D1

Deuteranopia (green-blind)

#4979CC

Tritanopia (blue-blind)

#328A99

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #6378ce;
/* rgb */ color: rgb(99, 120, 206);
/* oklch */ color: oklch(59.6% 0.133 271.5);

Tailwind

colors: {
  custom: {
    50: '#969edd',
    500: '#6378ce',
    950: '#000000',
  },
}

SCSS

$custom: #6378ce;
$custom-light: #969edd;
$custom-dark: #000000;

JSON

{
  "hex": "#6378ce",
  "rgb": {
    "r": 99,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 228.224,
    "s": 52.195,
    "l": 59.804
  },
  "oklch": {
    "l": 0.59607,
    "c": 0.13332,
    "h": 271.5
  },
  "luminance": 0.20542
}

Semantic roles & 50–950 ramp

primary

#6378CE

secondary

#DBD3B2

accent

#BF4CDC

background

#F9F9FD

surface

#F2F2FB

border

#CCCCD4

text

#0E0E15

muted

#7E7E83

Preview Lab

Preview with #6378CE

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

Preview Lab → · Contrast checker → · Palette generator →