#403D52#403D52

#403D52 is a dark, muted blue. Relative luminance 0.050; OKLCH L 37.2% C 0.036 H 291.1°. Best body text is #FFFFFF at 10.46:1 contrast (WCAG AA passes).

Color values

HEX	#403D52
RGB	rgb(64, 61, 82)
HSL	hsl(249, 15%, 28%)
HSV	hsv(249, 26%, 32%)
CMYK	cmyk(22%, 25.6%, 0%, 67.8%)
CIE-LAB	lab(26.84, 6.44, -12.20)
CIE-LCH	lch(26.84, 13.79, 297.84°)
OKLab	oklab(37.17% 0.0129 -0.0334)
OKLCH	oklch(37.17% 0.036 291.1)
XYZ	xyz(5.3057, 5.0366, 8.6736)
Luminance	0.0504 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403D52 #4F523D

analogous

#3D4452 #403D52 #4A3D52

triadic

#403D52 #52403D #3D5240

tetradic

#403D52 #523D44 #4F523D #3D524A

square

#403D52 #523D44 #4F523D #3D524A

split-complementary

#403D52 #524A3D #44523D

monochromatic

#0E0D12 #25232F #403D52 #5B5775 #787397

Accessibility & contrast

On white

10.46

#403D52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#403D52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403D52

10.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403D52	#FFFFFF	#000000	##FFFFFF
##403D52	1.00	10.46	2.01	10.46
#FFFFFF	10.46	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.46	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#384053

Deuteranopia (green-blind)

#383F51

Tritanopia (blue-blind)

#3C4044

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #403d52;
/* rgb */ color: rgb(64, 61, 82);
/* oklch */ color: oklch(37.2% 0.036 291.1);

Tailwind

colors: {
  custom: {
    50: '#757282',
    500: '#403d52',
    950: '#000000',
  },
}

SCSS

$custom: #403d52;
$custom-light: #757282;
$custom-dark: #000000;

JSON

{
  "hex": "#403d52",
  "rgb": {
    "r": 64,
    "g": 61,
    "b": 82
  },
  "hsl": {
    "h": 248.571,
    "s": 14.685,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37174,
    "c": 0.03582,
    "h": 291.1
  },
  "luminance": 0.05037
}

Semantic roles & 50–950 ramp

primary

#403D52

secondary

#7E8169

accent

#B770AD

background

#F7F6F7

surface

#EDECEE

border

#C8C7C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #403D52

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

Preview Lab → · Contrast checker → · Palette generator →