#403DB0#403DB0

#403DB0 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.177 H 277.3°. Best body text is #FFFFFF at 8.36:1 contrast (WCAG AA passes).

Color values

HEX	#403DB0
RGB	rgb(64, 61, 176)
HSL	hsl(242, 49%, 46%)
HSV	hsv(242, 65%, 69%)
CMYK	cmyk(63.6%, 65.3%, 0%, 31%)
CIE-LAB	lab(33.05, 36.71, -60.92)
CIE-LCH	lch(33.05, 71.12, 301.07°)
OKLab	oklab(43.81% 0.0226 -0.1756)
OKLCH	oklch(43.81% 0.177 277.3)
XYZ	xyz(11.6170, 7.5611, 41.9131)
Luminance	0.0756 (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

#403DB0 #ADB03D

analogous

#3D74B0 #403DB0 #7A3DB0

triadic

#403DB0 #B0403D #3DB040

tetradic

#403DB0 #B03D74 #ADB03D #3DB07A

square

#403DB0 #B03D74 #ADB03D #3DB07A

split-complementary

#403DB0 #B07A3D #74B03D

monochromatic

#1F1D55 #2F2D83 #403DB0 #6462C8 #918FD8

Accessibility & contrast

On white

8.36

#403DB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.51

#403DB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DB0

8.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DB0	#FFFFFF	#000000	##FFFFFF
##403DB0	1.00	8.36	2.51	8.36
#FFFFFF	8.36	1.00	21.00	1.00
#000000	2.51	21.00	1.00	21.00
##FFFFFF	8.36	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: #403db0;
/* rgb */ color: rgb(64, 61, 176);
/* oklch */ color: oklch(43.8% 0.177 277.3);

Tailwind

colors: {
  custom: {
    50: '#8273c9',
    500: '#403db0',
    950: '#000000',
  },
}

SCSS

$custom: #403db0;
$custom-light: #8273c9;
$custom-dark: #000000;

JSON

{
  "hex": "#403db0",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 176
  },
  "hsl": {
    "h": 241.565,
    "s": 48.523,
    "l": 46.471
  },
  "oklch": {
    "l": 0.43808,
    "c": 0.17703,
    "h": 277.3
  },
  "luminance": 0.07562
}

Semantic roles & 50–950 ramp

primary

#403DB0

secondary

#C2C386

accent

#D850D5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403DB0

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

Preview Lab → · Contrast checker → · Palette generator →