#3E40CB#3E40CB

#3E40CB is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.6% C 0.209 H 274.1°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#3E40CB
RGB	rgb(62, 64, 203)
HSL	hsl(239, 58%, 52%)
HSV	hsv(239, 69%, 80%)
CMYK	cmyk(69.5%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(35.99, 43.67, -71.99)
CIE-LCH	lch(35.99, 84.20, 301.24°)
OKLab	oklab(46.64% 0.015 -0.208)
OKLCH	oklch(46.64% 0.209 274.1)
XYZ	xyz(14.5959, 9.0013, 57.4566)
Luminance	0.0900 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.89

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40CB #CBC93E

analogous

#3E87CB #3E40CB #833ECB

triadic

#3E40CB #CB3E40 #40CB3E

tetradic

#3E40CB #CB3E87 #CBC93E #3ECB83

square

#3E40CB #CB3E87 #CBC93E #3ECB83

split-complementary

#3E40CB #CB833E #87CB3E

monochromatic

#1E1F70 #2B2DA1 #3E40CB #6E70D8 #9E9FE5

Accessibility & contrast

On white

7.50

#3E40CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#3E40CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40CB

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40CB	#FFFFFF	#000000	##FFFFFF
##3E40CB	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BCF

Deuteranopia (green-blind)

#004EC8

Tritanopia (blue-blind)

#006680

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #3e40cb;
/* rgb */ color: rgb(62, 64, 203);
/* oklch */ color: oklch(46.6% 0.209 274.1);

Tailwind

colors: {
  custom: {
    50: '#8676dc',
    500: '#3e40cb',
    950: '#000000',
  },
}

SCSS

$custom: #3e40cb;
$custom-light: #8676dc;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40cb",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 239.149,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.46635,
    "c": 0.20858,
    "h": 274.1
  },
  "luminance": 0.09003
}

Semantic roles & 50–950 ramp

primary

#3E40CB

secondary

#D1D094

accent

#DF47E1

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #3E40CB

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

Preview Lab → · Contrast checker → · Palette generator →