#3E40AF#3E40AF

#3E40AF is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.1% C 0.173 H 275.9°. Best body text is #FFFFFF at 8.21:1 contrast (WCAG AA passes).

Color values

HEX	#3E40AF
RGB	rgb(62, 64, 175)
HSL	hsl(239, 48%, 46%)
HSV	hsv(239, 65%, 69%)
CMYK	cmyk(64.6%, 63.4%, 0%, 31.4%)
CIE-LAB	lab(33.53, 34.20, -59.54)
CIE-LCH	lch(33.53, 68.67, 299.87°)
OKLab	oklab(44.1% 0.0178 -0.1716)
OKLCH	oklch(44.1% 0.173 275.9)
XYZ	xyz(11.5553, 7.7851, 41.4429)
Luminance	0.0779 (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

#3E40AF #AFAD3E

analogous

#3E79AF #3E40AF #753EAF

triadic

#3E40AF #AF3E40 #40AF3E

tetradic

#3E40AF #AF3E79 #AFAD3E #3EAF75

square

#3E40AF #AF3E79 #AFAD3E #3EAF75

split-complementary

#3E40AF #AF753E #79AF3E

monochromatic

#1E1F55 #2E2F82 #3E40AF #6364C8 #9091D8

Accessibility & contrast

On white

8.21

#3E40AF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#3E40AF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3E40AF

8.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3E40AF	#FFFFFF	#000000	##FFFFFF
##3E40AF	1.00	8.21	2.56	8.21
#FFFFFF	8.21	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B3

Deuteranopia (green-blind)

#004AAD

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #3e40af;
/* rgb */ color: rgb(62, 64, 175);
/* oklch */ color: oklch(44.1% 0.173 275.9);

Tailwind

colors: {
  custom: {
    50: '#8075c8',
    500: '#3e40af',
    950: '#000000',
  },
}

SCSS

$custom: #3e40af;
$custom-light: #8075c8;
$custom-dark: #000000;

JSON

{
  "hex": "#3e40af",
  "rgb": {
    "r": 62,
    "g": 64,
    "b": 175
  },
  "hsl": {
    "h": 238.938,
    "s": 47.679,
    "l": 46.471
  },
  "oklch": {
    "l": 0.44095,
    "c": 0.17251,
    "h": 275.9
  },
  "luminance": 0.07786
}

Semantic roles & 50–950 ramp

primary

#3E40AF

secondary

#C3C286

accent

#D551D7

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #3E40AF

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

Preview Lab → · Contrast checker → · Palette generator →