#3E40C1#3E40C1

#3E40C1 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.7% C 0.196 H 274.7°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#3E40C1
RGB	rgb(62, 64, 193)
HSL	hsl(239, 51%, 50%)
HSV	hsv(239, 68%, 76%)
CMYK	cmyk(67.9%, 66.8%, 0%, 24.3%)
CIE-LAB	lab(35.08, 40.32, -67.63)
CIE-LCH	lch(35.08, 78.74, 300.80°)
OKLab	oklab(45.71% 0.0162 -0.1953)
OKLCH	oklch(45.71% 0.196 274.7)
XYZ	xyz(13.4425, 8.5400, 51.3817)
Luminance	0.0854 (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

#3E40C1 #C1BF3E

analogous

#3E81C1 #3E40C1 #7E3EC1

triadic

#3E40C1 #C13E40 #40C13E

tetradic

#3E40C1 #C13E81 #C1BF3E #3EC17E

square

#3E40C1 #C13E81 #C1BF3E #3EC17E

split-complementary

#3E40C1 #C17E3E #81C13E

monochromatic

#202164 #2F3193 #3E40C1 #6C6ED0 #9B9CDF

Accessibility & contrast

On white

7.75

#3E40C1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#3E40C1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40C1

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40C1	#FFFFFF	#000000	##FFFFFF
##3E40C1	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C5

Deuteranopia (green-blind)

#004DBF

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3e40c1;
/* rgb */ color: rgb(62, 64, 193);
/* oklch */ color: oklch(45.7% 0.196 274.7);

Tailwind

colors: {
  custom: {
    50: '#8475d5',
    500: '#3e40c1',
    950: '#000000',
  },
}

SCSS

$custom: #3e40c1;
$custom-light: #8475d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40c1",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 193
  },
  "hsl": {
    "h": 239.084,
    "s": 51.373,
    "l": 50
  },
  "oklch": {
    "l": 0.45705,
    "c": 0.19598,
    "h": 274.7
  },
  "luminance": 0.08541
}

Semantic roles & 50–950 ramp

primary

#3E40C1

secondary

#CBCA90

accent

#D94DDB

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3E40C1

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

Preview Lab → · Contrast checker → · Palette generator →