#404151#404151

#404151 is a dark, muted blue. Relative luminance 0.055; OKLCH L 38.1% C 0.027 H 282.2°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#404151
RGB	rgb(64, 65, 81)
HSL	hsl(236, 12%, 28%)
HSV	hsv(236, 21%, 32%)
CMYK	cmyk(21%, 19.8%, 0%, 68.2%)
CIE-LAB	lab(28.02, 3.53, -9.74)
CIE-LCH	lch(28.02, 10.36, 289.93°)
OKLab	oklab(38.08% 0.0058 -0.0266)
OKLCH	oklch(38.08% 0.027 282.2)
XYZ	xyz(5.4895, 5.4646, 8.5485)
Luminance	0.0546 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404151 #515040

analogous

#404951 #404151 #474051

triadic

#404151 #514041 #415140

tetradic

#404151 #514049 #515040 #405147

square

#404151 #514049 #515040 #405147

split-complementary

#404151 #514740 #495140

monochromatic

#0E0E11 #25262F #404151 #5B5C73 #777994

Accessibility & contrast

On white

10.03

#404151 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#404151 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404151

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404151	#FFFFFF	#000000	##FFFFFF
##404151	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3D4352

Deuteranopia (green-blind)

#3C4251

Tritanopia (blue-blind)

#3C4446

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #404151;
/* rgb */ color: rgb(64, 65, 81);
/* oklch */ color: oklch(38.1% 0.027 282.2);

Tailwind

colors: {
  custom: {
    50: '#757581',
    500: '#404151',
    950: '#000000',
  },
}

SCSS

$custom: #404151;
$custom-light: #757581;
$custom-dark: #000000;

JSON

{
  "hex": "#404151",
  "rgb": {
    "r": 64,
    "g": 65,
    "b": 81
  },
  "hsl": {
    "h": 236.471,
    "s": 11.724,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38077,
    "c": 0.02719,
    "h": 282.2
  },
  "luminance": 0.05465
}

Semantic roles & 50–950 ramp

primary

#404151

secondary

#807F6D

accent

#B173B5

background

#F7F7F7

surface

#EDEDEE

border

#C8C8C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #404151

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

Preview Lab → · Contrast checker → · Palette generator →