#4381E5#4381E5

#4381E5 is a mid, vivid blue. Relative luminance 0.226; OKLCH L 61.3% C 0.165 H 259.6°. Best body text is #000000 at 5.51:1 contrast (WCAG AA passes).

Color values

HEX	#4381E5
RGB	rgb(67, 129, 229)
HSL	hsl(217, 76%, 58%)
HSV	hsv(217, 71%, 90%)
CMYK	cmyk(70.7%, 43.7%, 0%, 10.2%)
CIE-LAB	lab(54.60, 13.03, -56.60)
CIE-LCH	lch(54.60, 58.08, 282.96°)
OKLab	oklab(61.26% -0.0299 -0.1619)
OKLCH	oklch(61.26% 0.165 259.6)
XYZ	xyz(24.3027, 22.5483, 77.1850)
Luminance	0.2255 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4381E5 #E5A743

analogous

#43D2E5 #4381E5 #5643E5

triadic

#4381E5 #E54381 #81E543

tetradic

#4381E5 #E543D2 #E5A743 #43E556

square

#4381E5 #E543D2 #E5A743 #43E556

split-complementary

#4381E5 #E55643 #D2E543

monochromatic

#154799 #1D61CE #4381E5 #79A5EC #AFC9F4

Accessibility & contrast

On white

3.81

#4381E5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.51

#4381E5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4381E5

5.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4381E5	#FFFFFF	#000000	##000000
##4381E5	1.00	3.81	5.51	5.51
#FFFFFF	3.81	1.00	21.00	21.00
#000000	5.51	21.00	1.00	1.00
##000000	5.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F8BE9

Deuteranopia (green-blind)

#317CE3

Tritanopia (blue-blind)

#0098A8

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4381e5;
/* rgb */ color: rgb(67, 129, 229);
/* oklch */ color: oklch(61.3% 0.165 259.6);

Tailwind

colors: {
  custom: {
    50: '#8aa5ee',
    500: '#4381e5',
    950: '#000000',
  },
}

SCSS

$custom: #4381e5;
$custom-light: #8aa5ee;
$custom-dark: #000000;

JSON

{
  "hex": "#4381e5",
  "rgb": {
    "r": 67,
    "g": 129,
    "b": 229
  },
  "hsl": {
    "h": 217.037,
    "s": 75.701,
    "l": 58.039
  },
  "oklch": {
    "l": 0.61264,
    "c": 0.16467,
    "h": 259.6
  },
  "luminance": 0.22551
}

Semantic roles & 50–950 ramp

primary

#4381E5

secondary

#E2C9A2

accent

#AA36F2

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4381E5

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

Preview Lab → · Contrast checker → · Palette generator →