#4381E0#4381E0

#4381E0 is a mid, vivid blue. Relative luminance 0.223; OKLCH L 60.9% C 0.158 H 258.8°. Best body text is #000000 at 5.46:1 contrast (WCAG AA passes).

Color values

HEX	#4381E0
RGB	rgb(67, 129, 224)
HSL	hsl(216, 72%, 57%)
HSV	hsv(216, 70%, 88%)
CMYK	cmyk(70.1%, 42.4%, 0%, 12.2%)
CIE-LAB	lab(54.32, 11.24, -54.26)
CIE-LCH	lch(54.32, 55.41, 281.71°)
OKLab	oklab(60.95% -0.0308 -0.1551)
OKLCH	oklch(60.95% 0.158 258.8)
XYZ	xyz(23.6147, 22.2731, 73.5612)
Luminance	0.2228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4381E0 #E0A243

analogous

#43CFE0 #4381E0 #5443E0

triadic

#4381E0 #E04381 #81E043

tetradic

#4381E0 #E043CF #E0A243 #43E054

square

#4381E0 #E043CF #E0A243 #43E054

split-complementary

#4381E0 #E05443 #CFE043

monochromatic

#184891 #2162C5 #4381E0 #78A4E9 #ACC7F1

Accessibility & contrast

On white

3.85

#4381E0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.46

#4381E0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4381E0

5.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4381E0	#FFFFFF	#000000	##000000
##4381E0	1.00	3.85	5.46	5.46
#FFFFFF	3.85	1.00	21.00	21.00
#000000	5.46	21.00	1.00	1.00
##000000	5.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#538AE4

Deuteranopia (green-blind)

#387BDE

Tritanopia (blue-blind)

#0097A5

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4381e0;
/* rgb */ color: rgb(67, 129, 224);
/* oklch */ color: oklch(60.9% 0.158 258.8);

Tailwind

colors: {
  custom: {
    50: '#89a5ea',
    500: '#4381e0',
    950: '#000000',
  },
}

SCSS

$custom: #4381e0;
$custom-light: #89a5ea;
$custom-dark: #000000;

JSON

{
  "hex": "#4381e0",
  "rgb": {
    "r": 67,
    "g": 129,
    "b": 224
  },
  "hsl": {
    "h": 216.306,
    "s": 71.689,
    "l": 57.059
  },
  "oklch": {
    "l": 0.60948,
    "c": 0.1581,
    "h": 258.8
  },
  "luminance": 0.22276
}

Semantic roles & 50–950 ramp

primary

#4381E0

secondary

#DFC69F

accent

#A739EE

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4381E0

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

Preview Lab → · Contrast checker → · Palette generator →