#403D83#403D83

#403D83 is a dark, moderate blue. Relative luminance 0.061; OKLCH L 40.2% C 0.114 H 281.9°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#403D83
RGB	rgb(64, 61, 131)
HSL	hsl(243, 36%, 38%)
HSV	hsv(243, 53%, 51%)
CMYK	cmyk(51.1%, 53.4%, 0%, 48.6%)
CIE-LAB	lab(29.58, 21.55, -39.17)
CIE-LCH	lch(29.58, 44.71, 298.82°)
OKLab	oklab(40.15% 0.0235 -0.1117)
OKLCH	oklch(40.15% 0.114 281.9)
XYZ	xyz(7.8786, 6.0658, 22.2240)
Luminance	0.0607 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D83 #80833D

analogous

#3D5D83 #403D83 #633D83

triadic

#403D83 #83403D #3D8340

tetradic

#403D83 #833D5D #80833D #3D8363

square

#403D83 #833D5D #80833D #3D8363

split-complementary

#403D83 #83633D #5D833D

monochromatic

#17162F #2C2A59 #403D83 #5450AD #7D7AC1

Accessibility & contrast

On white

9.49

#403D83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#403D83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D83

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D83	#FFFFFF	#000000	##FFFFFF
##403D83	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4885

Deuteranopia (green-blind)

#154381

Tritanopia (blue-blind)

#274C5A

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403d83;
/* rgb */ color: rgb(64, 61, 131);
/* oklch */ color: oklch(40.2% 0.114 281.9);

Tailwind

colors: {
  custom: {
    50: '#7a72a7',
    500: '#403d83',
    950: '#000000',
  },
}

SCSS

$custom: #403d83;
$custom-light: #7a72a7;
$custom-dark: #000000;

JSON

{
  "hex": "#403d83",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 131
  },
  "hsl": {
    "h": 242.571,
    "s": 36.458,
    "l": 37.647
  },
  "oklch": {
    "l": 0.40151,
    "c": 0.11412,
    "h": 281.9
  },
  "luminance": 0.06066
}

Semantic roles & 50–950 ramp

primary

#403D83

secondary

#A8AB71

accent

#CC5BC8

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A080F

muted

#7C7B7F

Preview Lab

Preview with #403D83

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

Preview Lab → · Contrast checker → · Palette generator →