#403EB6#403EB6

#403EB6 is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.5% C 0.184 H 276.6°. Best body text is #FFFFFF at 8.13:1 contrast (WCAG AA passes).

Color values

HEX	#403EB6
RGB	rgb(64, 62, 182)
HSL	hsl(241, 49%, 48%)
HSV	hsv(241, 66%, 71%)
CMYK	cmyk(64.8%, 65.9%, 0%, 28.6%)
CIE-LAB	lab(33.80, 38.11, -63.26)
CIE-LCH	lch(33.80, 73.85, 301.06°)
OKLab	oklab(44.51% 0.0212 -0.1824)
OKLCH	oklch(44.51% 0.184 276.6)
XYZ	xyz(12.2777, 7.9116, 45.1270)
Luminance	0.0791 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.29

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403EB6 #B4B63E

analogous

#3E78B6 #403EB6 #7C3EB6

triadic

#403EB6 #B6403E #3EB640

tetradic

#403EB6 #B63E78 #B4B63E #3EB67C

square

#403EB6 #B63E78 #B4B63E #3EB67C

split-complementary

#403EB6 #B67C3E #78B63E

monochromatic

#201F5B #302E88 #403EB6 #6866CB #9594DB

Accessibility & contrast

On white

8.13

#403EB6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#403EB6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EB6

8.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EB6	#FFFFFF	#000000	##FFFFFF
##403EB6	1.00	8.13	2.58	8.13
#FFFFFF	8.13	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BA

Deuteranopia (green-blind)

#004AB4

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #403eb6;
/* rgb */ color: rgb(64, 62, 182);
/* oklch */ color: oklch(44.5% 0.184 276.6);

Tailwind

colors: {
  custom: {
    50: '#8374cd',
    500: '#403eb6',
    950: '#000000',
  },
}

SCSS

$custom: #403eb6;
$custom-light: #8374cd;
$custom-dark: #000000;

JSON

{
  "hex": "#403eb6",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 182
  },
  "hsl": {
    "h": 241,
    "s": 49.18,
    "l": 47.843
  },
  "oklch": {
    "l": 0.4451,
    "c": 0.18366,
    "h": 276.6
  },
  "luminance": 0.07913
}

Semantic roles & 50–950 ramp

primary

#403EB6

secondary

#C5C68A

accent

#D94FD6

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #403EB6

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

Preview Lab → · Contrast checker → · Palette generator →