#4378D8#4378D8

#4378D8 is a mid, vivid blue. Relative luminance 0.196; OKLCH L 58.5% C 0.158 H 261.2°. Best body text is #000000 at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#4378D8
RGB	rgb(67, 120, 216)
HSL	hsl(219, 66%, 55%)
HSV	hsv(219, 69%, 85%)
CMYK	cmyk(69%, 44.4%, 0%, 15.3%)
CIE-LAB	lab(51.36, 13.93, -54.48)
CIE-LCH	lch(51.36, 56.23, 284.34°)
OKLab	oklab(58.52% -0.0241 -0.1559)
OKLCH	oklch(58.52% 0.158 261.2)
XYZ	xyz(21.4215, 19.5819, 67.6032)
Luminance	0.1958 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378D8 #D8A343

analogous

#43C2D8 #4378D8 #5843D8

triadic

#4378D8 #D84378 #78D843

tetradic

#4378D8 #D843C2 #D8A343 #43D858

square

#4378D8 #D843C2 #D8A343 #43D858

split-complementary

#4378D8 #D85843 #C2D843

monochromatic

#1C4185 #265AB8 #4378D8 #769CE3 #A8C1ED

Accessibility & contrast

On white

4.27

#4378D8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.92

#4378D8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378D8

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378D8	#FFFFFF	#000000	##000000
##4378D8	1.00	4.27	4.92	4.92
#FFFFFF	4.27	1.00	21.00	21.00
#000000	4.92	21.00	1.00	1.00
##000000	4.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4882DC

Deuteranopia (green-blind)

#2D74D6

Tritanopia (blue-blind)

#008E9D

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4378d8;
/* rgb */ color: rgb(67, 120, 216);
/* oklch */ color: oklch(58.5% 0.158 261.2);

Tailwind

colors: {
  custom: {
    50: '#889ee4',
    500: '#4378d8',
    950: '#000000',
  },
}

SCSS

$custom: #4378d8;
$custom-light: #889ee4;
$custom-dark: #000000;

JSON

{
  "hex": "#4378d8",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 216
  },
  "hsl": {
    "h": 218.658,
    "s": 65.639,
    "l": 55.49
  },
  "oklch": {
    "l": 0.58517,
    "c": 0.15772,
    "h": 261.2
  },
  "luminance": 0.19584
}

Semantic roles & 50–950 ramp

primary

#4378D8

secondary

#DAC49C

accent

#AC3FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4378D8

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

Preview Lab → · Contrast checker → · Palette generator →