#40405E#40405E

#40405E is a dark, muted blue. Relative luminance 0.056; OKLCH L 38.5% C 0.051 H 283.8°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#40405E
RGB	rgb(64, 64, 94)
HSL	hsl(240, 19%, 31%)
HSV	hsv(240, 32%, 37%)
CMYK	cmyk(31.9%, 31.9%, 0%, 63.1%)
CIE-LAB	lab(28.29, 7.84, -17.76)
CIE-LCH	lch(28.29, 19.41, 293.81°)
OKLab	oklab(38.47% 0.0121 -0.0493)
OKLCH	oklch(38.47% 0.051 283.8)
XYZ	xyz(5.9676, 5.5648, 11.3472)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40405E #5E5E40

analogous

#404F5E #40405E #4F405E

triadic

#40405E #5E4040 #405E40

tetradic

#40405E #5E404F #5E5E40 #405E4F

square

#40405E #5E404F #5E5E40 #405E4F

split-complementary

#40405E #5E4F40 #4F5E40

monochromatic

#0E0E15 #27273A #40405E #595982 #7676A2

Accessibility & contrast

On white

9.94

#40405E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#40405E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40405E

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40405E	#FFFFFF	#000000	##FFFFFF
##40405E	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37445F

Deuteranopia (green-blind)

#36425D

Tritanopia (blue-blind)

#39454B

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #40405e;
/* rgb */ color: rgb(64, 64, 94);
/* oklch */ color: oklch(38.5% 0.051 283.8);

Tailwind

colors: {
  custom: {
    50: '#75748b',
    500: '#40405e',
    950: '#000000',
  },
}

SCSS

$custom: #40405e;
$custom-light: #75748b;
$custom-dark: #000000;

JSON

{
  "hex": "#40405e",
  "rgb": {
    "r": 64,
    "g": 64,
    "b": 94
  },
  "hsl": {
    "h": 240,
    "s": 18.987,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38474,
    "c": 0.05073,
    "h": 283.8
  },
  "luminance": 0.05565
}

Semantic roles & 50–950 ramp

primary

#40405E

secondary

#8D8D6C

accent

#BC6CBC

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #40405E

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

Preview Lab → · Contrast checker → · Palette generator →