#403DB2#403DB2

#403DB2 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 44.0% C 0.180 H 277.2°. Best body text is #FFFFFF at 8.31:1 contrast (WCAG AA passes).

Color values

HEX	#403DB2
RGB	rgb(64, 61, 178)
HSL	hsl(242, 49%, 47%)
HSV	hsv(242, 66%, 70%)
CMYK	cmyk(64%, 65.7%, 0%, 30.2%)
CIE-LAB	lab(33.22, 37.38, -61.82)
CIE-LCH	lch(33.22, 72.24, 301.16°)
OKLab	oklab(43.99% 0.0224 -0.1782)
OKLCH	oklch(43.99% 0.18 277.2)
XYZ	xyz(11.8164, 7.6409, 42.9630)
Luminance	0.0764 (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

#403DB2 #AFB23D

analogous

#3D75B2 #403DB2 #7A3DB2

triadic

#403DB2 #B2403D #3DB240

tetradic

#403DB2 #B23D75 #AFB23D #3DB27A

square

#403DB2 #B23D75 #AFB23D #3DB27A

split-complementary

#403DB2 #B27A3D #75B23D

monochromatic

#1F1E57 #302D84 #403DB2 #6563C9 #9290D9

Accessibility & contrast

On white

8.31

#403DB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#403DB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403DB2

8.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403DB2	#FFFFFF	#000000	##FFFFFF
##403DB2	1.00	8.31	2.53	8.31
#FFFFFF	8.31	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B6

Deuteranopia (green-blind)

#0049B0

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #403db2;
/* rgb */ color: rgb(64, 61, 178);
/* oklch */ color: oklch(44.0% 0.180 277.2);

Tailwind

colors: {
  custom: {
    50: '#8273ca',
    500: '#403db2',
    950: '#000000',
  },
}

SCSS

$custom: #403db2;
$custom-light: #8273ca;
$custom-dark: #000000;

JSON

{
  "hex": "#403db2",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 178
  },
  "hsl": {
    "h": 241.538,
    "s": 48.954,
    "l": 46.863
  },
  "oklch": {
    "l": 0.43986,
    "c": 0.17965,
    "h": 277.2
  },
  "luminance": 0.07642
}

Semantic roles & 50–950 ramp

primary

#403DB2

secondary

#C3C487

accent

#D94FD5

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403DB2

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

Preview Lab → · Contrast checker → · Palette generator →