#4378D0#4378D0

#4378D0 is a mid, vivid blue. Relative luminance 0.192; OKLCH L 58.0% C 0.147 H 260.0°. Best body text is #000000 at 4.84:1 contrast (WCAG AA passes).

Color values

HEX	#4378D0
RGB	rgb(67, 120, 208)
HSL	hsl(217, 60%, 54%)
HSV	hsv(217, 68%, 82%)
CMYK	cmyk(67.8%, 42.3%, 0%, 18.4%)
CIE-LAB	lab(50.90, 11.08, -50.69)
CIE-LCH	lch(50.90, 51.89, 282.33°)
OKLab	oklab(58.01% -0.0256 -0.1447)
OKLCH	oklch(58.01% 0.147 260)
XYZ	xyz(20.4123, 19.1782, 62.2883)
Luminance	0.1918 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4378D0 #D09B43

analogous

#43BFD0 #4378D0 #5543D0

triadic

#4378D0 #D04378 #78D043

tetradic

#4378D0 #D043BF #D09B43 #43D055

square

#4378D0 #D043BF #D09B43 #43D055

split-complementary

#4378D0 #D05543 #BFD043

monochromatic

#1F417A #2B5BAB #4378D0 #749BDC #A5BEE8

Accessibility & contrast

On white

4.34

#4378D0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.84

#4378D0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4378D0

4.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4378D0	#FFFFFF	#000000	##000000
##4378D0	1.00	4.34	4.84	4.84
#FFFFFF	4.34	1.00	21.00	21.00
#000000	4.84	21.00	1.00	1.00
##000000	4.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E80D3

Deuteranopia (green-blind)

#3773CE

Tritanopia (blue-blind)

#008C9A

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #4378d0;
/* rgb */ color: rgb(67, 120, 208);
/* oklch */ color: oklch(58.0% 0.147 260.0);

Tailwind

colors: {
  custom: {
    50: '#869edf',
    500: '#4378d0',
    950: '#000000',
  },
}

SCSS

$custom: #4378d0;
$custom-light: #869edf;
$custom-dark: #000000;

JSON

{
  "hex": "#4378d0",
  "rgb": {
    "r": 67,
    "g": 120,
    "b": 208
  },
  "hsl": {
    "h": 217.447,
    "s": 60,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58007,
    "c": 0.14697,
    "h": 260
  },
  "luminance": 0.1918
}

Semantic roles & 50–950 ramp

primary

#4378D0

secondary

#D5BF99

accent

#A845E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4378D0

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

Preview Lab → · Contrast checker → · Palette generator →