#3E40BF#3E40BF

#3E40BF is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.5% C 0.193 H 274.9°. Best body text is #FFFFFF at 7.80:1 contrast (WCAG AA passes).

Color values

HEX	#3E40BF
RGB	rgb(62, 64, 191)
HSL	hsl(239, 51%, 50%)
HSV	hsv(239, 68%, 75%)
CMYK	cmyk(67.5%, 66.5%, 0%, 25.1%)
CIE-LAB	lab(34.91, 39.65, -66.75)
CIE-LCH	lch(34.91, 77.64, 300.71°)
OKLab	oklab(45.52% 0.0164 -0.1927)
OKLCH	oklch(45.52% 0.193 274.9)
XYZ	xyz(13.2209, 8.4513, 50.2146)
Luminance	0.0845 (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

#3E40BF #BFBD3E

analogous

#3E80BF #3E40BF #7D3EBF

triadic

#3E40BF #BF3E40 #40BF3E

tetradic

#3E40BF #BF3E80 #BFBD3E #3EBF7D

square

#3E40BF #BF3E80 #BFBD3E #3EBF7D

split-complementary

#3E40BF #BF7D3E #80BF3E

monochromatic

#202163 #2F3191 #3E40BF #6B6DCF #999ADE

Accessibility & contrast

On white

7.80

#3E40BF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#3E40BF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40BF

7.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40BF	#FFFFFF	#000000	##FFFFFF
##3E40BF	1.00	7.80	2.69	7.80
#FFFFFF	7.80	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C3

Deuteranopia (green-blind)

#004CBD

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3e40bf;
/* rgb */ color: rgb(62, 64, 191);
/* oklch */ color: oklch(45.5% 0.193 274.9);

Tailwind

colors: {
  custom: {
    50: '#8475d3',
    500: '#3e40bf',
    950: '#000000',
  },
}

SCSS

$custom: #3e40bf;
$custom-light: #8475d3;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40bf",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 191
  },
  "hsl": {
    "h": 239.07,
    "s": 50.988,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45522,
    "c": 0.19342,
    "h": 274.9
  },
  "luminance": 0.08453
}

Semantic roles & 50–950 ramp

primary

#3E40BF

secondary

#CAC98F

accent

#D84DDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3E40BF

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

Preview Lab → · Contrast checker → · Palette generator →