#3E40D7#3E40D7

#3E40D7 is a mid, highly saturated blue. Relative luminance 0.096; OKLCH L 47.8% C 0.223 H 273.4°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#3E40D7
RGB	rgb(62, 64, 215)
HSL	hsl(239, 66%, 54%)
HSV	hsv(239, 71%, 84%)
CMYK	cmyk(71.2%, 70.2%, 0%, 15.7%)
CIE-LAB	lab(37.11, 47.64, -77.08)
CIE-LCH	lch(37.11, 90.61, 301.72°)
OKLab	oklab(47.78% 0.0134 -0.2229)
OKLCH	oklch(47.78% 0.223 273.4)
XYZ	xyz(16.0816, 9.5956, 65.2814)
Luminance	0.0960 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.21

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40D7 #D7D53E

analogous

#3E8CD7 #3E40D7 #893ED7

triadic

#3E40D7 #D73E40 #40D73E

tetradic

#3E40D7 #D73E8C #D7D53E #3ED789

square

#3E40D7 #D73E8C #D7D53E #3ED789

split-complementary

#3E40D7 #D7893E #8CD73E

monochromatic

#1B1C80 #2527B3 #3E40D7 #7172E2 #A3A4EC

Accessibility & contrast

On white

7.19

#3E40D7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#3E40D7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40D7

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40D7	#FFFFFF	#000000	##FFFFFF
##3E40D7	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005FDC

Deuteranopia (green-blind)

#0050D4

Tritanopia (blue-blind)

#006A87

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3e40d7;
/* rgb */ color: rgb(62, 64, 215);
/* oklch */ color: oklch(47.8% 0.223 273.4);

Tailwind

colors: {
  custom: {
    50: '#8976e5',
    500: '#3e40d7',
    950: '#000000',
  },
}

SCSS

$custom: #3e40d7;
$custom-light: #8976e5;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40d7",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 215
  },
  "hsl": {
    "h": 239.216,
    "s": 65.665,
    "l": 54.314
  },
  "oklch": {
    "l": 0.47779,
    "c": 0.22332,
    "h": 273.4
  },
  "luminance": 0.09597
}

Semantic roles & 50–950 ramp

primary

#3E40D7

secondary

#D9D898

accent

#E63FE9

background

#F9F7FE

surface

#F2EDFC

border

#CCC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3E40D7

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

Preview Lab → · Contrast checker → · Palette generator →