#4381D9#4381D9

#4381D9 is a mid, vivid blue. Relative luminance 0.219; OKLCH L 60.5% C 0.149 H 257.5°. Best body text is #000000 at 5.38:1 contrast (WCAG AA passes).

Color values

HEX	#4381D9
RGB	rgb(67, 129, 217)
HSL	hsl(215, 66%, 56%)
HSV	hsv(215, 69%, 85%)
CMYK	cmyk(69.1%, 40.6%, 0%, 14.9%)
CIE-LAB	lab(53.92, 8.76, -50.95)
CIE-LCH	lch(53.92, 51.70, 279.75°)
OKLab	oklab(60.52% -0.0322 -0.1454)
OKLCH	oklch(60.52% 0.149 257.5)
XYZ	xyz(22.6848, 21.9012, 68.6640)
Luminance	0.2190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4381D9 #D99B43

analogous

#43CCD9 #4381D9 #5043D9

triadic

#4381D9 #D94381 #81D943

tetradic

#4381D9 #D943CC #D99B43 #43D950

square

#4381D9 #D943CC #D99B43 #43D950

split-complementary

#4381D9 #D95043 #CCD943

monochromatic

#1B4886 #2563B9 #4381D9 #76A3E3 #A9C5EE

Accessibility & contrast

On white

3.90

#4381D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.38

#4381D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4381D9

5.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4381D9	#FFFFFF	#000000	##000000
##4381D9	1.00	3.90	5.38	5.38
#FFFFFF	3.90	1.00	21.00	21.00
#000000	5.38	21.00	1.00	1.00
##000000	5.38	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5888DC

Deuteranopia (green-blind)

#407AD7

Tritanopia (blue-blind)

#0095A2

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4381d9;
/* rgb */ color: rgb(67, 129, 217);
/* oklch */ color: oklch(60.5% 0.149 257.5);

Tailwind

colors: {
  custom: {
    50: '#88a5e5',
    500: '#4381d9',
    950: '#000000',
  },
}

SCSS

$custom: #4381d9;
$custom-light: #88a5e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4381d9",
  "rgb": {
    "r": 67,
    "g": 129,
    "b": 217
  },
  "hsl": {
    "h": 215.2,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.60516,
    "c": 0.14889,
    "h": 257.5
  },
  "luminance": 0.21904
}

Semantic roles & 50–950 ramp

primary

#4381D9

secondary

#DBC19D

accent

#A33FE9

background

#F9FAFE

surface

#F1F4FC

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4381D9

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

Preview Lab → · Contrast checker → · Palette generator →