#3E40D5#3E40D5

#3E40D5 is a mid, highly saturated blue. Relative luminance 0.095; OKLCH L 47.6% C 0.221 H 273.6°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#3E40D5
RGB	rgb(62, 64, 213)
HSL	hsl(239, 64%, 54%)
HSV	hsv(239, 71%, 84%)
CMYK	cmyk(70.9%, 70%, 0%, 16.5%)
CIE-LAB	lab(36.92, 46.98, -76.24)
CIE-LCH	lch(36.92, 89.55, 301.64°)
OKLab	oklab(47.59% 0.0137 -0.2205)
OKLCH	oklch(47.59% 0.221 273.6)
XYZ	xyz(15.8262, 9.4935, 63.9363)
Luminance	0.0950 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue (survey)

#0343DF

ΔE00 3.24

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40D5 #D5D33E

analogous

#3E8CD5 #3E40D5 #883ED5

triadic

#3E40D5 #D53E40 #40D53E

tetradic

#3E40D5 #D53E8C #D5D33E #3ED588

square

#3E40D5 #D53E8C #D5D33E #3ED588

split-complementary

#3E40D5 #D5883E #8CD53E

monochromatic

#1B1D7D #2628B0 #3E40D5 #7072E0 #A3A3EB

Accessibility & contrast

On white

7.24

#3E40D5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#3E40D5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40D5

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40D5	#FFFFFF	#000000	##FFFFFF
##3E40D5	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ED9

Deuteranopia (green-blind)

#0050D2

Tritanopia (blue-blind)

#006986

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #3e40d5;
/* rgb */ color: rgb(62, 64, 213);
/* oklch */ color: oklch(47.6% 0.221 273.6);

Tailwind

colors: {
  custom: {
    50: '#8876e3',
    500: '#3e40d5',
    950: '#000000',
  },
}

SCSS

$custom: #3e40d5;
$custom-light: #8876e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40d5",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 213
  },
  "hsl": {
    "h": 239.205,
    "s": 64.255,
    "l": 53.922
  },
  "oklch": {
    "l": 0.47586,
    "c": 0.2209,
    "h": 273.6
  },
  "luminance": 0.09495
}

Semantic roles & 50–950 ramp

primary

#3E40D5

secondary

#D8D797

accent

#E541E7

background

#F9F7FE

surface

#F1EDFC

border

#CBC8D5

text

#0D0816

muted

#7E7B84

Preview Lab

Preview with #3E40D5

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

Preview Lab → · Contrast checker → · Palette generator →