#3E40C8#3E40C8

#3E40C8 is a mid, highly saturated blue. Relative luminance 0.089; OKLCH L 46.4% C 0.205 H 274.3°. Best body text is #FFFFFF at 7.58:1 contrast (WCAG AA passes).

Color values

HEX	#3E40C8
RGB	rgb(62, 64, 200)
HSL	hsl(239, 56%, 51%)
HSV	hsv(239, 69%, 78%)
CMYK	cmyk(69%, 68%, 0%, 21.6%)
CIE-LAB	lab(35.71, 42.67, -70.69)
CIE-LCH	lch(35.71, 82.57, 301.12°)
OKLab	oklab(46.35% 0.0154 -0.2042)
OKLCH	oklch(46.35% 0.205 274.3)
XYZ	xyz(14.2419, 8.8597, 55.5919)
Luminance	0.0886 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue Blue

#2242C7

ΔE00 2.77

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3E40C8 #C8C63E

analogous

#3E85C8 #3E40C8 #813EC8

triadic

#3E40C8 #C83E40 #40C83E

tetradic

#3E40C8 #C83E85 #C8C63E #3EC881

square

#3E40C8 #C83E85 #C8C63E #3EC881

split-complementary

#3E40C8 #C8813E #85C83E

monochromatic

#1F206D #2D2E9C #3E40C8 #6E6FD6 #9D9EE3

Accessibility & contrast

On white

7.58

#3E40C8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#3E40C8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40C8

7.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40C8	#FFFFFF	#000000	##FFFFFF
##3E40C8	1.00	7.58	2.77	7.58
#FFFFFF	7.58	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACC

Deuteranopia (green-blind)

#004EC5

Tritanopia (blue-blind)

#00657F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #3e40c8;
/* rgb */ color: rgb(62, 64, 200);
/* oklch */ color: oklch(46.4% 0.205 274.3);

Tailwind

colors: {
  custom: {
    50: '#8676da',
    500: '#3e40c8',
    950: '#000000',
  },
}

SCSS

$custom: #3e40c8;
$custom-light: #8676da;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40c8",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 200
  },
  "hsl": {
    "h": 239.13,
    "s": 55.645,
    "l": 51.373
  },
  "oklch": {
    "l": 0.46353,
    "c": 0.20483,
    "h": 274.3
  },
  "luminance": 0.08861
}

Semantic roles & 50–950 ramp

primary

#3E40C8

secondary

#CFCE92

accent

#DD49DF

background

#F8F7FD

surface

#F0EDFB

border

#CBC8D4

text

#0D0815

muted

#7D7B83

Preview Lab

Preview with #3E40C8

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

Preview Lab → · Contrast checker → · Palette generator →