#4379E9#4379E9

#4379E9 is a mid, vivid blue. Relative luminance 0.208; OKLCH L 59.9% C 0.179 H 262.8°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#4379E9
RGB	rgb(67, 121, 233)
HSL	hsl(220, 79%, 59%)
HSV	hsv(220, 71%, 91%)
CMYK	cmyk(71.2%, 48.1%, 0%, 8.6%)
CIE-LAB	lab(52.67, 19.39, -61.93)
CIE-LCH	lch(52.67, 64.90, 287.38°)
OKLab	oklab(59.86% -0.0224 -0.1778)
OKLCH	oklch(59.86% 0.179 262.8)
XYZ	xyz(23.8549, 20.7487, 79.8227)
Luminance	0.2075 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4379E9 #E9B343

analogous

#43CCE9 #4379E9 #6043E9

triadic

#4379E9 #E94379 #79E943

tetradic

#4379E9 #E943CC #E9B343 #43E960

square

#4379E9 #E943CC #E9B343 #43E960

split-complementary

#4379E9 #E96043 #CCE943

monochromatic

#13409F #1956D6 #4379E9 #7AA0EF #B1C7F6

Accessibility & contrast

On white

4.08

#4379E9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#4379E9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4379E9

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4379E9	#FFFFFF	#000000	##000000
##4379E9	1.00	4.08	5.15	5.15
#FFFFFF	4.08	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3A86ED

Deuteranopia (green-blind)

#0077E7

Tritanopia (blue-blind)

#0093A6

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4379e9;
/* rgb */ color: rgb(67, 121, 233);
/* oklch */ color: oklch(59.9% 0.179 262.8);

Tailwind

colors: {
  custom: {
    50: '#8b9ff1',
    500: '#4379e9',
    950: '#000000',
  },
}

SCSS

$custom: #4379e9;
$custom-light: #8b9ff1;
$custom-dark: #000000;

JSON

{
  "hex": "#4379e9",
  "rgb": {
    "r": 67,
    "g": 121,
    "b": 233
  },
  "hsl": {
    "h": 220.482,
    "s": 79.048,
    "l": 58.824
  },
  "oklch": {
    "l": 0.59859,
    "c": 0.17917,
    "h": 262.8
  },
  "luminance": 0.20751
}

Semantic roles & 50–950 ramp

primary

#4379E9

secondary

#E5CFA3

accent

#B632F6

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4379E9

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

Preview Lab → · Contrast checker → · Palette generator →