#404256#404256

#404256 is a dark, muted blue. Relative luminance 0.057; OKLCH L 38.5% C 0.034 H 280.2°. Best body text is #FFFFFF at 9.85:1 contrast (WCAG AA passes).

Color values

HEX	#404256
RGB	rgb(64, 66, 86)
HSL	hsl(235, 15%, 29%)
HSV	hsv(235, 26%, 34%)
CMYK	cmyk(25.6%, 23.3%, 0%, 66.3%)
CIE-LAB	lab(28.53, 4.24, -12.21)
CIE-LCH	lch(28.53, 12.92, 289.13°)
OKLab	oklab(38.55% 0.006 -0.0335)
OKLCH	oklch(38.55% 0.034 280.2)
XYZ	xyz(5.7419, 5.6582, 9.5919)
Luminance	0.0566 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404256 #565440

analogous

#404D56 #404256 #494056

triadic

#404256 #564042 #425640

tetradic

#404256 #56404D #565440 #405649

square

#404256 #56404D #565440 #405649

split-complementary

#404256 #564940 #4D5640

monochromatic

#0D0D12 #262733 #404256 #5A5D79 #777A9A

Accessibility & contrast

On white

9.85

#404256 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#404256 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404256

9.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404256	#FFFFFF	#000000	##FFFFFF
##404256	1.00	9.85	2.13	9.85
#FFFFFF	9.85	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4457

Deuteranopia (green-blind)

#3C4355

Tritanopia (blue-blind)

#3B4649

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #404256;
/* rgb */ color: rgb(64, 66, 86);
/* oklch */ color: oklch(38.5% 0.034 280.2);

Tailwind

colors: {
  custom: {
    50: '#757685',
    500: '#404256',
    950: '#000000',
  },
}

SCSS

$custom: #404256;
$custom-light: #757685;
$custom-dark: #000000;

JSON

{
  "hex": "#404256",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 86
  },
  "hsl": {
    "h": 234.545,
    "s": 14.667,
    "l": 29.412
  },
  "oklch": {
    "l": 0.38546,
    "c": 0.03404,
    "h": 280.2
  },
  "luminance": 0.05658
}

Semantic roles & 50–950 ramp

primary

#404256

secondary

#85836C

accent

#B170B7

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08080B

muted

#7B7B7C

Preview Lab

Preview with #404256

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

Preview Lab → · Contrast checker → · Palette generator →