#403D74#403D74

#403D74 is a dark, moderate blue. Relative luminance 0.057; OKLCH L 39.1% C 0.091 H 283.8°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#403D74
RGB	rgb(64, 61, 116)
HSL	hsl(243, 31%, 35%)
HSV	hsv(243, 47%, 45%)
CMYK	cmyk(44.8%, 47.4%, 0%, 54.5%)
CIE-LAB	lab(28.61, 16.64, -31.31)
CIE-LCH	lch(28.61, 35.45, 297.99°)
OKLab	oklab(39.11% 0.0218 -0.0886)
OKLCH	oklch(39.11% 0.091 283.8)
XYZ	xyz(6.9346, 5.6881, 17.2521)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D74 #71743D

analogous

#3D5674 #403D74 #5C3D74

triadic

#403D74 #74403D #3D7440

tetradic

#403D74 #743D56 #71743D #3D745C

square

#403D74 #743D56 #71743D #3D745C

split-complementary

#403D74 #745C3D #56743D

monochromatic

#141324 #2A284C #403D74 #56529C #7975B6

Accessibility & contrast

On white

9.82

#403D74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#403D74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D74

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D74	#FFFFFF	#000000	##FFFFFF
##403D74	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#284576

Deuteranopia (green-blind)

#264273

Tritanopia (blue-blind)

#304853

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #403d74;
/* rgb */ color: rgb(64, 61, 116);
/* oklch */ color: oklch(39.1% 0.091 283.8);

Tailwind

colors: {
  custom: {
    50: '#78729c',
    500: '#403d74',
    950: '#000000',
  },
}

SCSS

$custom: #403d74;
$custom-light: #78729c;
$custom-dark: #000000;

JSON

{
  "hex": "#403d74",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 116
  },
  "hsl": {
    "h": 243.273,
    "s": 31.073,
    "l": 34.706
  },
  "oklch": {
    "l": 0.39112,
    "c": 0.09122,
    "h": 283.8
  },
  "luminance": 0.05688
}

Semantic roles & 50–950 ramp

primary

#403D74

secondary

#9EA16C

accent

#C761C2

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #403D74

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

Preview Lab → · Contrast checker → · Palette generator →