#404255#404255

#404255 is a dark, muted blue. Relative luminance 0.056; OKLCH L 38.5% C 0.032 H 280.1°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#404255
RGB	rgb(64, 66, 85)
HSL	hsl(234, 14%, 29%)
HSV	hsv(234, 25%, 33%)
CMYK	cmyk(24.7%, 22.4%, 0%, 66.7%)
CIE-LAB	lab(28.49, 3.96, -11.63)
CIE-LCH	lch(28.49, 12.28, 288.81°)
OKLab	oklab(38.5% 0.0056 -0.0319)
OKLCH	oklch(38.5% 0.032 280.1)
XYZ	xyz(5.7019, 5.6422, 9.3812)
Luminance	0.0564 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404255 #555340

analogous

#404D55 #404255 #494055

triadic

#404255 #554042 #425540

tetradic

#404255 #55404D #555340 #405549

square

#404255 #55404D #555340 #405549

split-complementary

#404255 #554940 #4D5540

monochromatic

#0D0E11 #262732 #404255 #5A5D78 #777A99

Accessibility & contrast

On white

9.87

#404255 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#404255 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404255

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404255	#FFFFFF	#000000	##FFFFFF
##404255	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4456

Deuteranopia (green-blind)

#3C4355

Tritanopia (blue-blind)

#3B4548

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #404255;
/* rgb */ color: rgb(64, 66, 85);
/* oklch */ color: oklch(38.5% 0.032 280.1);

Tailwind

colors: {
  custom: {
    50: '#757685',
    500: '#404255',
    950: '#000000',
  },
}

SCSS

$custom: #404255;
$custom-light: #757685;
$custom-dark: #000000;

JSON

{
  "hex": "#404255",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 85
  },
  "hsl": {
    "h": 234.286,
    "s": 14.094,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38499,
    "c": 0.03235,
    "h": 280.1
  },
  "luminance": 0.05642
}

Semantic roles & 50–950 ramp

primary

#404255

secondary

#84826D

accent

#B071B7

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08080B

muted

#7B7B7C

Preview Lab

Preview with #404255

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

Preview Lab → · Contrast checker → · Palette generator →