#4378F4#4378F4

#4378F4 is a mid, vivid blue. Relative luminance 0.212; OKLCH L 60.4% C 0.195 H 264.0°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#4378F4
RGB	rgb(67, 120, 244)
HSL	hsl(222, 89%, 61%)
HSV	hsv(222, 73%, 96%)
CMYK	cmyk(72.5%, 50.8%, 0%, 4.3%)
CIE-LAB	lab(53.12, 23.94, -67.35)
CIE-LCH	lch(53.12, 71.48, 289.57°)
OKLab	oklab(60.43% -0.0203 -0.1937)
OKLCH	oklch(60.43% 0.195 264)
XYZ	xyz(25.3546, 21.1551, 88.3175)
Luminance	0.2116 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378F4 #F4BF43

analogous

#43D0F4 #4378F4 #6643F4

triadic

#4378F4 #F44378 #78F443

tetradic

#4378F4 #F443D0 #F4BF43 #43F466

square

#4378F4 #F443D0 #F4BF43 #43F466

split-complementary

#4378F4 #F46643 #D0F443

monochromatic

#0A3DB2 #0E50EC #4378F4 #7DA2F7 #B7CBFB

Accessibility & contrast

On white

4.01

#4378F4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#4378F4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378F4

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378F4	#FFFFFF	#000000	##000000
##4378F4	1.00	4.01	5.23	5.23
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#2887F8

Deuteranopia (green-blind)

#0077F2

Tritanopia (blue-blind)

#0096AB

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4378f4;
/* rgb */ color: rgb(67, 120, 244);
/* oklch */ color: oklch(60.4% 0.195 264.0);

Tailwind

colors: {
  custom: {
    50: '#8d9ef8',
    500: '#4378f4',
    950: '#000000',
  },
}

SCSS

$custom: #4378f4;
$custom-light: #8d9ef8;
$custom-dark: #000000;

JSON

{
  "hex": "#4378f4",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 244
  },
  "hsl": {
    "h": 222.034,
    "s": 88.945,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60425,
    "c": 0.19478,
    "h": 264
  },
  "luminance": 0.21158
}

Semantic roles & 50–950 ramp

primary

#4378F4

secondary

#EBD7A8

accent

#A100E6

background

#F9F9FF

surface

#F2F2FF

border

#CCCCD7

text

#0E0E17

muted

#7E7E85

Preview Lab

Preview with #4378F4

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

Preview Lab → · Contrast checker → · Palette generator →