#403D73#403D73

#403D73 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.0% C 0.090 H 284.0°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#403D73
RGB	rgb(64, 61, 115)
HSL	hsl(243, 31%, 35%)
HSV	hsv(243, 47%, 45%)
CMYK	cmyk(44.3%, 47%, 0%, 54.9%)
CIE-LAB	lab(28.55, 16.32, -30.77)
CIE-LCH	lch(28.55, 34.83, 297.93°)
OKLab	oklab(39.05% 0.0216 -0.087)
OKLCH	oklch(39.05% 0.09 284)
XYZ	xyz(6.8767, 5.6650, 16.9475)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D73 #70733D

analogous

#3D5573 #403D73 #5B3D73

triadic

#403D73 #73403D #3D7340

tetradic

#403D73 #733D55 #70733D #3D735B

square

#403D73 #733D55 #70733D #3D735B

split-complementary

#403D73 #735B3D #55733D

monochromatic

#131323 #2A284B #403D73 #56529B #7875B6

Accessibility & contrast

On white

9.85

#403D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#403D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D73

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D73	#FFFFFF	#000000	##FFFFFF
##403D73	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#294575

Deuteranopia (green-blind)

#274272

Tritanopia (blue-blind)

#314852

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #403d73;
/* rgb */ color: rgb(64, 61, 115);
/* oklch */ color: oklch(39.0% 0.090 284.0);

Tailwind

colors: {
  custom: {
    50: '#78729b',
    500: '#403d73',
    950: '#000000',
  },
}

SCSS

$custom: #403d73;
$custom-light: #78729b;
$custom-dark: #000000;

JSON

{
  "hex": "#403d73",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 115
  },
  "hsl": {
    "h": 243.333,
    "s": 30.682,
    "l": 34.51
  },
  "oklch": {
    "l": 0.39046,
    "c": 0.08966,
    "h": 284
  },
  "luminance": 0.05665
}

Semantic roles & 50–950 ramp

primary

#403D73

secondary

#9DA06C

accent

#C761C1

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #403D73

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

Preview Lab → · Contrast checker → · Palette generator →