#4379D9#4379D9

#4379D9 is a mid, vivid blue. Relative luminance 0.199; OKLCH L 58.8% C 0.158 H 260.9°. Best body text is #000000 at 4.98:1 contrast (WCAG AA passes).

Color values

HEX	#4379D9
RGB	rgb(67, 121, 217)
HSL	hsl(218, 66%, 56%)
HSV	hsv(218, 69%, 85%)
CMYK	cmyk(69.1%, 44.2%, 0%, 14.9%)
CIE-LAB	lab(51.70, 13.67, -54.51)
CIE-LCH	lch(51.70, 56.20, 284.08°)
OKLab	oklab(58.79% -0.0248 -0.1559)
OKLCH	oklch(58.79% 0.158 260.9)
XYZ	xyz(21.6720, 19.8756, 68.3264)
Luminance	0.1988 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4379D9 #D9A343

analogous

#43C4D9 #4379D9 #5843D9

triadic

#4379D9 #D94379 #79D943

tetradic

#4379D9 #D943C4 #D9A343 #43D958

square

#4379D9 #D943C4 #D9A343 #43D958

split-complementary

#4379D9 #D95843 #C4D943

monochromatic

#1B4286 #255BB9 #4379D9 #769DE3 #A9C2EE

Accessibility & contrast

On white

4.22

#4379D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.98

#4379D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4379D9

4.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4379D9	#FFFFFF	#000000	##000000
##4379D9	1.00	4.22	4.98	4.98
#FFFFFF	4.22	1.00	21.00	21.00
#000000	4.98	21.00	1.00	1.00
##000000	4.98	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A83DD

Deuteranopia (green-blind)

#2E75D7

Tritanopia (blue-blind)

#008F9E

Achromatopsia (no color)

#7B7B7B

Design tokens & code

CSS

--color: #4379d9;
/* rgb */ color: rgb(67, 121, 217);
/* oklch */ color: oklch(58.8% 0.158 260.9);

Tailwind

colors: {
  custom: {
    50: '#889fe5',
    500: '#4379d9',
    950: '#000000',
  },
}

SCSS

$custom: #4379d9;
$custom-light: #889fe5;
$custom-dark: #000000;

JSON

{
  "hex": "#4379d9",
  "rgb": {
    "r": 67,
    "g": 121,
    "b": 217
  },
  "hsl": {
    "h": 218.4,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.58794,
    "c": 0.1579,
    "h": 260.9
  },
  "luminance": 0.19878
}

Semantic roles & 50–950 ramp

primary

#4379D9

secondary

#DBC59D

accent

#AC3FE9

background

#F9F9FE

surface

#F1F2FC

border

#CBCCD5

text

#0D0E16

muted

#7E7E84

Preview Lab

Preview with #4379D9

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

Preview Lab → · Contrast checker → · Palette generator →