#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
RGBrgb(62, 64, 203)
HSLhsl(239, 58%, 52%)
HSVhsv(239, 69%, 80%)
CMYKcmyk(69.5%, 68.5%, 0%, 20.4%)
CIE-LABlab(35.99, 43.67, -71.99)
CIE-LCHlch(35.99, 84.20, 301.24°)
OKLaboklab(46.64% 0.015 -0.208)
OKLCHoklch(46.64% 0.209 274.1)
XYZxyz(14.5959, 9.0013, 57.4566)
Luminance0.0900 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

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
##3E40CB1.007.502.807.50
#FFFFFF7.501.0021.001.00
#0000002.8021.001.0021.00
##FFFFFF7.501.0021.001.00

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 →

#3E40CB Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva