#4378CA#4378CA

#4378CA is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.6% C 0.139 H 258.9°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#4378CA
RGB	rgb(67, 120, 202)
HSL	hsl(216, 56%, 53%)
HSV	hsv(216, 67%, 79%)
CMYK	cmyk(66.8%, 40.6%, 0%, 20.8%)
CIE-LAB	lab(50.56, 8.96, -47.81)
CIE-LCH	lch(50.56, 48.65, 280.61°)
OKLab	oklab(57.64% -0.0268 -0.1363)
OKLCH	oklch(57.64% 0.139 258.9)
XYZ	xyz(19.6881, 18.8885, 58.4739)
Luminance	0.1889 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378CA #CA9543

analogous

#43BCCA #4378CA #5143CA

triadic

#4378CA #CA4378 #78CA43

tetradic

#4378CA #CA43BC #CA9543 #43CA51

square

#4378CA #CA43BC #CA9543 #43CA51

split-complementary

#4378CA #CA5143 #BCCA43

monochromatic

#204072 #2E5BA2 #4378CA #739AD7 #A2BDE5

Accessibility & contrast

On white

4.39

#4378CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#4378CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378CA

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378CA	#FFFFFF	#000000	##000000
##4378CA	1.00	4.39	4.78	4.78
#FFFFFF	4.39	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#527FCD

Deuteranopia (green-blind)

#3E73C8

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4378ca;
/* rgb */ color: rgb(67, 120, 202);
/* oklch */ color: oklch(57.6% 0.139 258.9);

Tailwind

colors: {
  custom: {
    50: '#859eda',
    500: '#4378ca',
    950: '#000000',
  },
}

SCSS

$custom: #4378ca;
$custom-light: #859eda;
$custom-dark: #000000;

JSON

{
  "hex": "#4378ca",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 202
  },
  "hsl": {
    "h": 216.444,
    "s": 56.017,
    "l": 52.745
  },
  "oklch": {
    "l": 0.57635,
    "c": 0.13889,
    "h": 258.9
  },
  "luminance": 0.18891
}

Semantic roles & 50–950 ramp

primary

#4378CA

secondary

#D2BB97

accent

#A448DF

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4378CA

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

Preview Lab → · Contrast checker → · Palette generator →