#3E40DB#3E40DB

#3E40DB is a mid, highly saturated blue. Relative luminance 0.098; OKLCH L 48.2% C 0.228 H 273.2°. Best body text is #FFFFFF at 7.09:1 contrast (WCAG AA passes).

Color values

HEX	#3E40DB
RGB	rgb(62, 64, 219)
HSL	hsl(239, 69%, 55%)
HSV	hsv(239, 72%, 86%)
CMYK	cmyk(71.7%, 70.8%, 0%, 14.1%)
CIE-LAB	lab(37.49, 48.95, -78.75)
CIE-LCH	lch(37.49, 92.72, 301.86°)
OKLab	oklab(48.17% 0.0128 -0.2278)
OKLCH	oklch(48.17% 0.228 273.2)
XYZ	xyz(16.6019, 9.8037, 68.0215)
Luminance	0.0980 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40DB #DBD93E

analogous

#3E8EDB #3E40DB #8B3EDB

triadic

#3E40DB #DB3E40 #40DB3E

tetradic

#3E40DB #DB3E8E #DBD93E #3EDB8B

square

#3E40DB #DB3E8E #DBD93E #3EDB8B

split-complementary

#3E40DB #DB8B3E #8EDB3E

monochromatic

#191A86 #2324B9 #3E40DB #7273E5 #A5A6EE

Accessibility & contrast

On white

7.09

#3E40DB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#3E40DB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40DB

7.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40DB	#FFFFFF	#000000	##FFFFFF
##3E40DB	1.00	7.09	2.96	7.09
#FFFFFF	7.09	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E0

Deuteranopia (green-blind)

#0051D8

Tritanopia (blue-blind)

#006C89

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #3e40db;
/* rgb */ color: rgb(62, 64, 219);
/* oklch */ color: oklch(48.2% 0.228 273.2);

Tailwind

colors: {
  custom: {
    50: '#8a76e7',
    500: '#3e40db',
    950: '#000000',
  },
}

SCSS

$custom: #3e40db;
$custom-light: #8a76e7;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40db",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 219
  },
  "hsl": {
    "h": 239.236,
    "s": 68.559,
    "l": 55.098
  },
  "oklch": {
    "l": 0.48167,
    "c": 0.22815,
    "h": 273.2
  },
  "luminance": 0.09805
}

Semantic roles & 50–950 ramp

primary

#3E40DB

secondary

#DBDA99

accent

#E93CEB

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #3E40DB

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

Preview Lab → · Contrast checker → · Palette generator →