#4378D2#4378D2

#4378D2 is a mid, vivid blue. Relative luminance 0.193; OKLCH L 58.1% C 0.150 H 260.3°. Best body text is #000000 at 4.86:1 contrast (WCAG AA passes).

Color values

HEX	#4378D2
RGB	rgb(67, 120, 210)
HSL	hsl(218, 61%, 54%)
HSV	hsv(218, 68%, 82%)
CMYK	cmyk(68.1%, 42.9%, 0%, 17.6%)
CIE-LAB	lab(51.01, 11.79, -51.64)
CIE-LCH	lch(51.01, 52.97, 282.86°)
OKLab	oklab(58.13% -0.0252 -0.1475)
OKLCH	oklch(58.13% 0.15 260.3)
XYZ	xyz(20.6599, 19.2773, 63.5924)
Luminance	0.1928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378D2 #D29D43

analogous

#43C0D2 #4378D2 #5643D2

triadic

#4378D2 #D24378 #78D243

tetradic

#4378D2 #D243C0 #D29D43 #43D256

square

#4378D2 #D243C0 #D29D43 #43D256

split-complementary

#4378D2 #D25643 #C0D243

monochromatic

#1E417D #2A5BAE #4378D2 #749BDE #A6BFEA

Accessibility & contrast

On white

4.32

#4378D2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.86

#4378D2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378D2

4.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378D2	#FFFFFF	#000000	##000000
##4378D2	1.00	4.32	4.86	4.86
#FFFFFF	4.32	1.00	21.00	21.00
#000000	4.86	21.00	1.00	1.00
##000000	4.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D81D5

Deuteranopia (green-blind)

#3573D0

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4378d2;
/* rgb */ color: rgb(67, 120, 210);
/* oklch */ color: oklch(58.1% 0.150 260.3);

Tailwind

colors: {
  custom: {
    50: '#869ee0',
    500: '#4378d2',
    950: '#000000',
  },
}

SCSS

$custom: #4378d2;
$custom-light: #869ee0;
$custom-dark: #000000;

JSON

{
  "hex": "#4378d2",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 210
  },
  "hsl": {
    "h": 217.762,
    "s": 61.373,
    "l": 54.314
  },
  "oklch": {
    "l": 0.58133,
    "c": 0.14966,
    "h": 260.3
  },
  "luminance": 0.19279
}

Semantic roles & 50–950 ramp

primary

#4378D2

secondary

#D7C09A

accent

#A943E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4378D2

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

Preview Lab → · Contrast checker → · Palette generator →