#403F50#403F50

#403F50 is a dark, muted blue. Relative luminance 0.052; OKLCH L 37.6% C 0.029 H 287.6°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#403F50
RGB	rgb(64, 63, 80)
HSL	hsl(244, 12%, 28%)
HSV	hsv(244, 21%, 31%)
CMYK	cmyk(20%, 21.2%, 0%, 68.6%)
CIE-LAB	lab(27.36, 4.58, -10.09)
CIE-LCH	lch(27.36, 11.08, 294.43°)
OKLab	oklab(37.55% 0.0087 -0.0275)
OKLCH	oklch(37.55% 0.029 287.6)
XYZ	xyz(5.3395, 5.2241, 8.3149)
Luminance	0.0522 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F50 #4F503F

analogous

#3F4650 #403F50 #483F50

triadic

#403F50 #50403F #3F5040

tetradic

#403F50 #503F46 #4F503F #3F5048

square

#403F50 #503F46 #4F503F #3F5048

split-complementary

#403F50 #50483F #46503F

monochromatic

#0E0D11 #25242E #403F50 #5B5A72 #787693

Accessibility & contrast

On white

10.27

#403F50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#403F50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F50

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F50	#FFFFFF	#000000	##FFFFFF
##403F50	1.00	10.27	2.04	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B4151

Deuteranopia (green-blind)

#3B4050

Tritanopia (blue-blind)

#3D4245

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #403f50;
/* rgb */ color: rgb(64, 63, 80);
/* oklch */ color: oklch(37.6% 0.029 287.6);

Tailwind

colors: {
  custom: {
    50: '#757481',
    500: '#403f50',
    950: '#000000',
  },
}

SCSS

$custom: #403f50;
$custom-light: #757481;
$custom-dark: #000000;

JSON

{
  "hex": "#403f50",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 80
  },
  "hsl": {
    "h": 243.529,
    "s": 11.888,
    "l": 28.039
  },
  "oklch": {
    "l": 0.37554,
    "c": 0.02887,
    "h": 287.6
  },
  "luminance": 0.05224
}

Semantic roles & 50–950 ramp

primary

#403F50

secondary

#7E7F6C

accent

#B573B1

background

#F7F7F7

surface

#EDEDEE

border

#C8C8C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #403F50

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

Preview Lab → · Contrast checker → · Palette generator →