#3E40BD#3E40BD

#3E40BD is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.3% C 0.191 H 275.0°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#3E40BD
RGB	rgb(62, 64, 189)
HSL	hsl(239, 51%, 49%)
HSV	hsv(239, 67%, 74%)
CMYK	cmyk(67.2%, 66.1%, 0%, 25.9%)
CIE-LAB	lab(34.73, 38.97, -65.87)
CIE-LCH	lch(34.73, 76.53, 300.61°)
OKLab	oklab(45.34% 0.0166 -0.1901)
OKLCH	oklch(45.34% 0.191 275)
XYZ	xyz(13.0023, 8.3639, 49.0634)
Luminance	0.0837 (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

#3E40BD #BDBB3E

analogous

#3E80BD #3E40BD #7C3EBD

triadic

#3E40BD #BD3E40 #40BD3E

tetradic

#3E40BD #BD3E80 #BDBB3E #3EBD7C

square

#3E40BD #BD3E80 #BDBB3E #3EBD7C

split-complementary

#3E40BD #BD7C3E #80BD3E

monochromatic

#202161 #2F308F #3E40BD #6A6CCE #9899DD

Accessibility & contrast

On white

7.86

#3E40BD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#3E40BD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40BD

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40BD	#FFFFFF	#000000	##FFFFFF
##3E40BD	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C1

Deuteranopia (green-blind)

#004CBB

Tritanopia (blue-blind)

#006179

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #3e40bd;
/* rgb */ color: rgb(62, 64, 189);
/* oklch */ color: oklch(45.3% 0.191 275.0);

Tailwind

colors: {
  custom: {
    50: '#8375d2',
    500: '#3e40bd',
    950: '#000000',
  },
}

SCSS

$custom: #3e40bd;
$custom-light: #8375d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40bd",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 189
  },
  "hsl": {
    "h": 239.055,
    "s": 50.598,
    "l": 49.216
  },
  "oklch": {
    "l": 0.4534,
    "c": 0.19085,
    "h": 275
  },
  "luminance": 0.08365
}

Semantic roles & 50–950 ramp

primary

#3E40BD

secondary

#C9C88E

accent

#D84EDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #3E40BD

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

Preview Lab → · Contrast checker → · Palette generator →