#404657#404657

#404657 is a dark, muted blue. Relative luminance 0.062; OKLCH L 39.6% C 0.030 H 269.8°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#404657
RGB	rgb(64, 70, 87)
HSL	hsl(224, 15%, 30%)
HSV	hsv(224, 26%, 34%)
CMYK	cmyk(26.4%, 19.5%, 0%, 65.9%)
CIE-LAB	lab(29.81, 1.91, -10.91)
CIE-LCH	lch(29.81, 11.08, 279.91°)
OKLab	oklab(39.55% -0.0001 -0.0299)
OKLCH	oklch(39.55% 0.03 269.8)
XYZ	xyz(6.0244, 6.1583, 9.8862)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#404657 #575140

analogous

#405257 #404657 #464057

triadic

#404657 #574046 #465740

tetradic

#404657 #574052 #575140 #405746

square

#404657 #574052 #575140 #405746

split-complementary

#404657 #574640 #525740

monochromatic

#0D0E12 #262A34 #404657 #5A627A #77809B

Accessibility & contrast

On white

9.41

#404657 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#404657 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #404657

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##404657	#FFFFFF	#000000	##FFFFFF
##404657	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#414758

Deuteranopia (green-blind)

#3F4557

Tritanopia (blue-blind)

#3A494C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #404657;
/* rgb */ color: rgb(64, 70, 87);
/* oklch */ color: oklch(39.6% 0.030 269.8);

Tailwind

colors: {
  custom: {
    50: '#757986',
    500: '#404657',
    950: '#000000',
  },
}

SCSS

$custom: #404657;
$custom-light: #757986;
$custom-dark: #000000;

JSON

{
  "hex": "#404657",
  "rgb": {
    "r": 64,
    "g": 70,
    "b": 87
  },
  "hsl": {
    "h": 224.348,
    "s": 15.232,
    "l": 29.608
  },
  "oklch": {
    "l": 0.39554,
    "c": 0.02987,
    "h": 269.8
  },
  "luminance": 0.06158
}

Semantic roles & 50–950 ramp

primary

#404657

secondary

#86806C

accent

#A570B8

background

#F7F7F8

surface

#EDEDEF

border

#C8C8CA

text

#08090B

muted

#7B7B7C

Preview Lab

Preview with #404657

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

Preview Lab → · Contrast checker → · Palette generator →