#403EB0#403EB0

#403EB0 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.0% C 0.176 H 277.1°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#403EB0
RGB	rgb(64, 62, 176)
HSL	hsl(241, 48%, 47%)
HSV	hsv(241, 65%, 69%)
CMYK	cmyk(63.6%, 64.8%, 0%, 31%)
CIE-LAB	lab(33.28, 36.09, -60.54)
CIE-LCH	lch(33.28, 70.48, 300.80°)
OKLab	oklab(43.98% 0.0218 -0.1745)
OKLCH	oklch(43.98% 0.176 277.1)
XYZ	xyz(11.6709, 7.6689, 41.9311)
Luminance	0.0767 (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

#403EB0 #AEB03E

analogous

#3E75B0 #403EB0 #793EB0

triadic

#403EB0 #B0403E #3EB040

tetradic

#403EB0 #B03E75 #AEB03E #3EB079

square

#403EB0 #B03E75 #AEB03E #3EB079

split-complementary

#403EB0 #B0793E #75B03E

monochromatic

#1F1E55 #302E83 #403EB0 #6563C8 #9290D8

Accessibility & contrast

On white

8.29

#403EB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#403EB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EB0

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EB0	#FFFFFF	#000000	##FFFFFF
##403EB0	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B4

Deuteranopia (green-blind)

#0049AE

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #403eb0;
/* rgb */ color: rgb(64, 62, 176);
/* oklch */ color: oklch(44.0% 0.176 277.1);

Tailwind

colors: {
  custom: {
    50: '#8274c9',
    500: '#403eb0',
    950: '#000000',
  },
}

SCSS

$custom: #403eb0;
$custom-light: #8274c9;
$custom-dark: #000000;

JSON

{
  "hex": "#403eb0",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 176
  },
  "hsl": {
    "h": 241.053,
    "s": 47.899,
    "l": 46.667
  },
  "oklch": {
    "l": 0.43977,
    "c": 0.17582,
    "h": 277.1
  },
  "luminance": 0.0767
}

Semantic roles & 50–950 ramp

primary

#403EB0

secondary

#C2C387

accent

#D750D5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403EB0

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

Preview Lab → · Contrast checker → · Palette generator →