#404252#404252

#404252 is a dark, muted blue. Relative luminance 0.056; OKLCH L 38.4% C 0.027 H 279.4°. Best body text is #FFFFFF at 9.91:1 contrast (WCAG AA passes).

Color values

HEX	#404252
RGB	rgb(64, 66, 82)
HSL	hsl(233, 12%, 29%)
HSV	hsv(233, 22%, 32%)
CMYK	cmyk(22%, 19.5%, 0%, 67.8%)
CIE-LAB	lab(28.37, 3.15, -9.87)
CIE-LCH	lch(28.37, 10.36, 287.69°)
OKLab	oklab(38.36% 0.0045 -0.0269)
OKLCH	oklch(38.36% 0.027 279.4)
XYZ	xyz(5.5852, 5.5955, 8.7668)
Luminance	0.0560 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404252 #525040

analogous

#404B52 #404252 #474052

triadic

#404252 #524042 #425240

tetradic

#404252 #52404B #525040 #405247

square

#404252 #52404B #525040 #405247

split-complementary

#404252 #524740 #4B5240

monochromatic

#0D0E11 #252630 #404252 #5B5E74 #777B95

Accessibility & contrast

On white

9.91

#404252 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#404252 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404252

9.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404252	#FFFFFF	#000000	##FFFFFF
##404252	1.00	9.91	2.12	9.91
#FFFFFF	9.91	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3E4453

Deuteranopia (green-blind)

#3D4252

Tritanopia (blue-blind)

#3C4547

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #404252;
/* rgb */ color: rgb(64, 66, 82);
/* oklch */ color: oklch(38.4% 0.027 279.4);

Tailwind

colors: {
  custom: {
    50: '#757682',
    500: '#404252',
    950: '#000000',
  },
}

SCSS

$custom: #404252;
$custom-light: #757682;
$custom-dark: #000000;

JSON

{
  "hex": "#404252",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 82
  },
  "hsl": {
    "h": 233.333,
    "s": 12.329,
    "l": 28.627
  },
  "oklch": {
    "l": 0.38363,
    "c": 0.02729,
    "h": 279.4
  },
  "luminance": 0.05596
}

Semantic roles & 50–950 ramp

primary

#404252

secondary

#817F6D

accent

#AE73B5

background

#F7F7F7

surface

#EDEDEE

border

#C8C8C9

text

#08080A

muted

#7B7B7C

Preview Lab

Preview with #404252

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

Preview Lab → · Contrast checker → · Palette generator →