#404258#404258

#404258 is a dark, muted blue. Relative luminance 0.057; OKLCH L 38.6% C 0.037 H 280.4°. Best body text is #FFFFFF at 9.82:1 contrast (WCAG AA passes).

Color values

HEX	#404258
RGB	rgb(64, 66, 88)
HSL	hsl(235, 16%, 30%)
HSV	hsv(235, 27%, 35%)
CMYK	cmyk(27.3%, 25%, 0%, 65.5%)
CIE-LAB	lab(28.62, 4.79, -13.37)
CIE-LCH	lch(28.62, 14.21, 289.72°)
OKLab	oklab(38.64% 0.0068 -0.0368)
OKLCH	oklch(38.64% 0.037 280.4)
XYZ	xyz(5.8236, 5.6909, 10.0223)
Luminance	0.0569 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404258 #585640

analogous

#404E58 #404258 #4A4058

triadic

#404258 #584042 #425840

tetradic

#404258 #58404E #585640 #40584A

square

#404258 #58404E #585640 #40584A

split-complementary

#404258 #584A40 #4E5840

monochromatic

#0D0D12 #262735 #404258 #5A5D7B #777A9C

Accessibility & contrast

On white

9.82

#404258 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.14

#404258 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404258

9.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404258	#FFFFFF	#000000	##FFFFFF
##404258	1.00	9.82	2.14	9.82
#FFFFFF	9.82	1.00	21.00	1.00
#000000	2.14	21.00	1.00	21.00
##FFFFFF	9.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C4459

Deuteranopia (green-blind)

#3B4357

Tritanopia (blue-blind)

#3A464A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #404258;
/* rgb */ color: rgb(64, 66, 88);
/* oklch */ color: oklch(38.6% 0.037 280.4);

Tailwind

colors: {
  custom: {
    50: '#757687',
    500: '#404258',
    950: '#000000',
  },
}

SCSS

$custom: #404258;
$custom-light: #757687;
$custom-dark: #000000;

JSON

{
  "hex": "#404258",
  "rgb": {
    "r": 64,
    "g": 66,
    "b": 88
  },
  "hsl": {
    "h": 235,
    "s": 15.789,
    "l": 29.804
  },
  "oklch": {
    "l": 0.38641,
    "c": 0.0374,
    "h": 280.4
  },
  "luminance": 0.05691
}

Semantic roles & 50–950 ramp

primary

#404258

secondary

#87856C

accent

#B26FB9

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08080B

muted

#7B7B7C

Preview Lab

Preview with #404258

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

Preview Lab → · Contrast checker → · Palette generator →