#3E40E3#3E40E3

#3E40E3 is a mid, highly saturated blue. Relative luminance 0.102; OKLCH L 49.0% C 0.238 H 272.8°. Best body text is #FFFFFF at 6.89:1 contrast (WCAG AA passes).

Color values

HEX	#3E40E3
RGB	rgb(62, 64, 227)
HSL	hsl(239, 75%, 57%)
HSV	hsv(239, 73%, 89%)
CMYK	cmyk(72.7%, 71.8%, 0%, 11%)
CIE-LAB	lab(38.26, 51.54, -82.05)
CIE-LCH	lch(38.26, 96.89, 302.13°)
OKLab	oklab(48.95% 0.0116 -0.2374)
OKLCH	oklch(48.95% 0.238 272.8)
XYZ	xyz(17.6805, 10.2352, 73.7019)
Luminance	0.1024 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 4.29

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40E3 #E3E13E

analogous

#3E93E3 #3E40E3 #8F3EE3

triadic

#3E40E3 #E33E40 #40E33E

tetradic

#3E40E3 #E33E93 #E3E13E #3EE38F

square

#3E40E3 #E33E93 #E3E13E #3EE38F

split-complementary

#3E40E3 #E38F3E #93E33E

monochromatic

#151791 #1D1FC7 #3E40E3 #7375EB #A9AAF3

Accessibility & contrast

On white

6.89

#3E40E3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.05

#3E40E3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3E40E3

6.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40E3	#FFFFFF	#000000	##FFFFFF
##3E40E3	1.00	6.89	3.05	6.89
#FFFFFF	6.89	1.00	21.00	1.00
#000000	3.05	21.00	1.00	21.00
##FFFFFF	6.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062E8

Deuteranopia (green-blind)

#0052E0

Tritanopia (blue-blind)

#006E8E

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #3e40e3;
/* rgb */ color: rgb(62, 64, 227);
/* oklch */ color: oklch(49.0% 0.238 272.8);

Tailwind

colors: {
  custom: {
    50: '#8b76ed',
    500: '#3e40e3',
    950: '#000000',
  },
}

SCSS

$custom: #3e40e3;
$custom-light: #8b76ed;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40e3",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 227
  },
  "hsl": {
    "h": 239.273,
    "s": 74.661,
    "l": 56.667
  },
  "oklch": {
    "l": 0.48952,
    "c": 0.23769,
    "h": 272.8
  },
  "luminance": 0.10237
}

Semantic roles & 50–950 ramp

primary

#3E40E3

secondary

#E0DF9D

accent

#EF37F1

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0917

muted

#7E7B85

Preview Lab

Preview with #3E40E3

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

Preview Lab → · Contrast checker → · Palette generator →