#40374E#40374E

#40374E is a dark, muted violet. Relative luminance 0.044; OKLCH L 35.6% C 0.041 H 302.3°. Best body text is #FFFFFF at 11.20:1 contrast (WCAG AA passes).

Color values

HEX	#40374E
RGB	rgb(64, 55, 78)
HSL	hsl(263, 17%, 26%)
HSV	hsv(263, 29%, 31%)
CMYK	cmyk(17.9%, 29.5%, 0%, 69.4%)
CIE-LAB	lab(24.87, 9.38, -12.58)
CIE-LCH	lch(24.87, 15.69, 306.69°)
OKLab	oklab(35.59% 0.0218 -0.0345)
OKLCH	oklch(35.59% 0.041 302.3)
XYZ	xyz(4.8554, 4.3724, 7.7944)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	violet

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40374E #454E37

analogous

#37394E #40374E #4B374E

triadic

#40374E #4E4037 #374E40

tetradic

#40374E #4E3739 #454E37 #374E4B

square

#40374E #4E3739 #454E37 #374E4B

split-complementary

#40374E #4E4B37 #394E37

monochromatic

#0F0D12 #231E2A #40374E #5D5072 #7B6A96

Accessibility & contrast

On white

11.20

#40374E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#40374E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40374E

11.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40374E	#FFFFFF	#000000	##FFFFFF
##40374E	1.00	11.20	1.87	11.20
#FFFFFF	11.20	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323B4F

Deuteranopia (green-blind)

#343B4D

Tritanopia (blue-blind)

#3E3A3F

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #40374e;
/* rgb */ color: rgb(64, 55, 78);
/* oklch */ color: oklch(35.6% 0.041 302.3);

Tailwind

colors: {
  custom: {
    50: '#756d7f',
    500: '#40374e',
    950: '#000000',
  },
}

SCSS

$custom: #40374e;
$custom-light: #756d7f;
$custom-dark: #000000;

JSON

{
  "hex": "#40374e",
  "rgb": {
    "r": 64,
    "g": 55,
    "b": 78
  },
  "hsl": {
    "h": 263.478,
    "s": 17.293,
    "l": 26.078
  },
  "oklch": {
    "l": 0.35592,
    "c": 0.04078,
    "h": 302.3
  },
  "luminance": 0.04372
}

Semantic roles & 50–950 ramp

primary

#40374E

secondary

#737E63

accent

#BA6E9C

background

#F7F6F7

surface

#EDEBEE

border

#C8C6C9

text

#08070A

muted

#7B7A7C

Preview Lab

Preview with #40374E

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

Preview Lab → · Contrast checker → · Palette generator →