#40455E#40455E

#40455E is a dark, muted blue. Relative luminance 0.062; OKLCH L 39.6% C 0.043 H 275.5°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#40455E
RGB	rgb(64, 69, 94)
HSL	hsl(230, 19%, 31%)
HSV	hsv(230, 32%, 37%)
CMYK	cmyk(31.9%, 26.6%, 0%, 63.1%)
CIE-LAB	lab(29.80, 4.54, -15.43)
CIE-LCH	lch(29.80, 16.08, 286.40°)
OKLab	oklab(39.65% 0.0041 -0.0426)
OKLCH	oklch(39.65% 0.043 275.5)
XYZ	xyz(6.2623, 6.1542, 11.4454)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40455E #5E5940

analogous

#40545E #40455E #4A405E

triadic

#40455E #5E4045 #455E40

tetradic

#40455E #5E4054 #5E5940 #405E4A

square

#40455E #5E4054 #5E5940 #405E4A

split-complementary

#40455E #5E4A40 #545E40

monochromatic

#0E1015 #272A3A #40455E #596082 #767EA2

Accessibility & contrast

On white

9.41

#40455E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#40455E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40455E

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40455E	#FFFFFF	#000000	##FFFFFF
##40455E	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E475F

Deuteranopia (green-blind)

#3C455D

Tritanopia (blue-blind)

#384A4E

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #40455e;
/* rgb */ color: rgb(64, 69, 94);
/* oklch */ color: oklch(39.6% 0.043 275.5);

Tailwind

colors: {
  custom: {
    50: '#75788b',
    500: '#40455e',
    950: '#000000',
  },
}

SCSS

$custom: #40455e;
$custom-light: #75788b;
$custom-dark: #000000;

JSON

{
  "hex": "#40455e",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 94
  },
  "hsl": {
    "h": 230,
    "s": 18.987,
    "l": 30.98
  },
  "oklch": {
    "l": 0.39645,
    "c": 0.04282,
    "h": 275.5
  },
  "luminance": 0.06154
}

Semantic roles & 50–950 ramp

primary

#40455E

secondary

#8D886C

accent

#AE6CBC

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08090C

muted

#7B7B7D

Preview Lab

Preview with #40455E

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

Preview Lab → · Contrast checker → · Palette generator →