#4379D1#4379D1

#4379D1 is a mid, vivid blue. Relative luminance 0.195; OKLCH L 58.3% C 0.147 H 259.7°. Best body text is #000000 at 4.89:1 contrast (WCAG AA passes).

Color values

HEX	#4379D1
RGB	rgb(67, 121, 209)
HSL	hsl(217, 61%, 54%)
HSV	hsv(217, 68%, 82%)
CMYK	cmyk(67.9%, 42.1%, 0%, 18%)
CIE-LAB	lab(51.23, 10.82, -50.72)
CIE-LCH	lch(51.23, 51.86, 282.04°)
OKLab	oklab(58.29% -0.0263 -0.1448)
OKLCH	oklch(58.29% 0.147 259.7)
XYZ	xyz(20.6566, 19.4694, 62.9786)
Luminance	0.1947 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4379D1 #D19B43

analogous

#43C0D1 #4379D1 #5443D1

triadic

#4379D1 #D14379 #79D143

tetradic

#4379D1 #D143C0 #D19B43 #43D154

square

#4379D1 #D143C0 #D19B43 #43D154

split-complementary

#4379D1 #D15443 #C0D143

monochromatic

#1E427B #2A5CAD #4379D1 #749CDD #A5BFE9

Accessibility & contrast

On white

4.29

#4379D1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.89

#4379D1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4379D1

4.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4379D1	#FFFFFF	#000000	##000000
##4379D1	1.00	4.29	4.89	4.89
#FFFFFF	4.29	1.00	21.00	21.00
#000000	4.89	21.00	1.00	1.00
##000000	4.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F81D4

Deuteranopia (green-blind)

#3874CF

Tritanopia (blue-blind)

#008D9B

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #4379d1;
/* rgb */ color: rgb(67, 121, 209);
/* oklch */ color: oklch(58.3% 0.147 259.7);

Tailwind

colors: {
  custom: {
    50: '#869fdf',
    500: '#4379d1',
    950: '#000000',
  },
}

SCSS

$custom: #4379d1;
$custom-light: #869fdf;
$custom-dark: #000000;

JSON

{
  "hex": "#4379d1",
  "rgb": {
    "r": 67,
    "g": 121,
    "b": 209
  },
  "hsl": {
    "h": 217.183,
    "s": 60.684,
    "l": 54.118
  },
  "oklch": {
    "l": 0.58286,
    "c": 0.14718,
    "h": 259.7
  },
  "luminance": 0.19471
}

Semantic roles & 50–950 ramp

primary

#4379D1

secondary

#D6BF9A

accent

#A744E4

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4379D1

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

Preview Lab → · Contrast checker → · Palette generator →