#403D78#403D78

#403D78 is a dark, moderate blue. Relative luminance 0.058; OKLCH L 39.4% C 0.097 H 283.3°. Best body text is #FFFFFF at 9.74:1 contrast (WCAG AA passes).

Color values

HEX	#403D78
RGB	rgb(64, 61, 120)
HSL	hsl(243, 33%, 35%)
HSV	hsv(243, 49%, 47%)
CMYK	cmyk(46.7%, 49.2%, 0%, 52.9%)
CIE-LAB	lab(28.86, 17.93, -33.44)
CIE-LCH	lch(28.86, 37.94, 298.20°)
OKLab	oklab(39.38% 0.0224 -0.0948)
OKLCH	oklch(39.38% 0.097 283.3)
XYZ	xyz(7.1723, 5.7832, 18.5040)
Luminance	0.0578 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D78 #75783D

analogous

#3D5778 #403D78 #5D3D78

triadic

#403D78 #78403D #3D7840

tetradic

#403D78 #783D57 #75783D #3D785D

square

#403D78 #783D57 #75783D #3D785D

split-complementary

#403D78 #785D3D #57783D

monochromatic

#151427 #2A284F #403D78 #5652A1 #7976B9

Accessibility & contrast

On white

9.74

#403D78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#403D78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D78

9.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D78	#FFFFFF	#000000	##FFFFFF
##403D78	1.00	9.74	2.16	9.74
#FFFFFF	9.74	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#25467A

Deuteranopia (green-blind)

#224277

Tritanopia (blue-blind)

#2E4954

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #403d78;
/* rgb */ color: rgb(64, 61, 120);
/* oklch */ color: oklch(39.4% 0.097 283.3);

Tailwind

colors: {
  custom: {
    50: '#78729f',
    500: '#403d78',
    950: '#000000',
  },
}

SCSS

$custom: #403d78;
$custom-light: #78729f;
$custom-dark: #000000;

JSON

{
  "hex": "#403d78",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 120
  },
  "hsl": {
    "h": 243.051,
    "s": 32.597,
    "l": 35.49
  },
  "oklch": {
    "l": 0.39379,
    "c": 0.09742,
    "h": 283.3
  },
  "luminance": 0.05784
}

Semantic roles & 50–950 ramp

primary

#403D78

secondary

#A1A36D

accent

#C95FC3

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #403D78

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

Preview Lab → · Contrast checker → · Palette generator →