#4378C4#4378C4

#4378C4 is a mid, vivid blue. Relative luminance 0.186; OKLCH L 57.3% C 0.131 H 257.6°. Best body text is #000000 at 4.72:1 contrast (WCAG AA passes).

Color values

HEX	#4378C4
RGB	rgb(67, 120, 196)
HSL	hsl(215, 52%, 52%)
HSV	hsv(215, 66%, 77%)
CMYK	cmyk(65.8%, 38.8%, 0%, 23.1%)
CIE-LAB	lab(50.23, 6.85, -44.91)
CIE-LCH	lch(50.23, 45.43, 278.67°)
OKLab	oklab(57.27% -0.0281 -0.1278)
OKLCH	oklch(57.27% 0.131 257.6)
XYZ	xyz(18.9914, 18.6099, 54.8051)
Luminance	0.1861 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378C4 #C48F43

analogous

#43B9C4 #4378C4 #4F43C4

triadic

#4378C4 #C44378 #78C443

tetradic

#4378C4 #C443B9 #C48F43 #43C44F

square

#4378C4 #C443B9 #C48F43 #43C44F

split-complementary

#4378C4 #C44F43 #B9C443

monochromatic

#22406B #305C9A #4378C4 #7299D3 #A0BBE1

Accessibility & contrast

On white

4.45

#4378C4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.72

#4378C4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378C4

4.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378C4	#FFFFFF	#000000	##000000
##4378C4	1.00	4.45	4.72	4.72
#FFFFFF	4.45	1.00	21.00	21.00
#000000	4.72	21.00	1.00	1.00
##000000	4.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#567EC7

Deuteranopia (green-blind)

#4372C2

Tritanopia (blue-blind)

#008994

Achromatopsia (no color)

#777777

Design tokens & code

CSS

--color: #4378c4;
/* rgb */ color: rgb(67, 120, 196);
/* oklch */ color: oklch(57.3% 0.131 257.6);

Tailwind

colors: {
  custom: {
    50: '#849ed6',
    500: '#4378c4',
    950: '#000000',
  },
}

SCSS

$custom: #4378c4;
$custom-light: #849ed6;
$custom-dark: #000000;

JSON

{
  "hex": "#4378c4",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 196
  },
  "hsl": {
    "h": 215.349,
    "s": 52.227,
    "l": 51.569
  },
  "oklch": {
    "l": 0.57272,
    "c": 0.13082,
    "h": 257.6
  },
  "luminance": 0.18612
}

Semantic roles & 50–950 ramp

primary

#4378C4

secondary

#CEB695

accent

#A14CDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #4378C4

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

Preview Lab → · Contrast checker → · Palette generator →