#404451#404451

#404451 is a dark, muted blue. Relative luminance 0.058; OKLCH L 38.8% C 0.023 H 271.8°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#404451
RGB	rgb(64, 68, 81)
HSL	hsl(226, 12%, 28%)
HSV	hsv(226, 21%, 32%)
CMYK	cmyk(21%, 16%, 0%, 68.2%)
CIE-LAB	lab(28.95, 1.58, -8.34)
CIE-LCH	lch(28.95, 8.49, 280.72°)
OKLab	oklab(38.8% 0.0007 -0.0227)
OKLCH	oklch(38.8% 0.023 271.8)
XYZ	xyz(5.6663, 5.8182, 8.6075)
Luminance	0.0582 (WCAG relative)
Temperature	neutral
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404451 #514D40

analogous

#404C51 #404451 #444051

triadic

#404451 #514044 #445140

tetradic

#404451 #51404C #514D40 #405144

square

#404451 #51404C #514D40 #405144

split-complementary

#404451 #514440 #4C5140

monochromatic

#0E0E11 #25272F #404451 #5B6173 #777E94

Accessibility & contrast

On white

9.71

#404451 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#404451 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404451

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404451	#FFFFFF	#000000	##FFFFFF
##404451	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#404552

Deuteranopia (green-blind)

#3F4451

Tritanopia (blue-blind)

#3C4648

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #404451;
/* rgb */ color: rgb(64, 68, 81);
/* oklch */ color: oklch(38.8% 0.023 271.8);

Tailwind

colors: {
  custom: {
    50: '#757781',
    500: '#404451',
    950: '#000000',
  },
}

SCSS

$custom: #404451;
$custom-light: #757781;
$custom-dark: #000000;

JSON

{
  "hex": "#404451",
  "rgb": {
    "r": 64,
    "g": 68,
    "b": 81
  },
  "hsl": {
    "h": 225.882,
    "s": 11.724,
    "l": 28.431
  },
  "oklch": {
    "l": 0.38804,
    "c": 0.02269,
    "h": 271.8
  },
  "luminance": 0.05818
}

Semantic roles & 50–950 ramp

primary

#404451

secondary

#807C6D

accent

#A573B5

background

#F7F7F7

surface

#EDEDEE

border

#C8C8C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #404451

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

Preview Lab → · Contrast checker → · Palette generator →