#403E58#403E58

#403E58 is a dark, muted blue. Relative luminance 0.052; OKLCH L 37.7% C 0.044 H 287.6°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#403E58
RGB	rgb(64, 62, 88)
HSL	hsl(245, 17%, 29%)
HSV	hsv(245, 30%, 35%)
CMYK	cmyk(27.3%, 29.5%, 0%, 65.5%)
CIE-LAB	lab(27.41, 7.44, -15.24)
CIE-LCH	lch(27.41, 16.95, 296.02°)
OKLab	oklab(37.7% 0.0133 -0.042)
OKLCH	oklch(37.7% 0.044 287.6)
XYZ	xyz(5.5980, 5.2397, 9.9471)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403E58 #56583E

analogous

#3E4958 #403E58 #4D3E58

triadic

#403E58 #58403E #3E5840

tetradic

#403E58 #583E49 #56583E #3E584D

square

#403E58 #583E49 #56583E #3E584D

split-complementary

#403E58 #584D3E #49583E

monochromatic

#0D0D12 #262534 #403E58 #5A577C #77749D

Accessibility & contrast

On white

10.25

#403E58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#403E58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403E58

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403E58	#FFFFFF	#000000	##FFFFFF
##403E58	1.00	10.25	2.05	10.25
#FFFFFF	10.25	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#374159

Deuteranopia (green-blind)

#374057

Tritanopia (blue-blind)

#3B4247

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #403e58;
/* rgb */ color: rgb(64, 62, 88);
/* oklch */ color: oklch(37.7% 0.044 287.6);

Tailwind

colors: {
  custom: {
    50: '#757387',
    500: '#403e58',
    950: '#000000',
  },
}

SCSS

$custom: #403e58;
$custom-light: #757387;
$custom-dark: #000000;

JSON

{
  "hex": "#403e58",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 88
  },
  "hsl": {
    "h": 244.615,
    "s": 17.333,
    "l": 29.412
  },
  "oklch": {
    "l": 0.37702,
    "c": 0.04412,
    "h": 287.6
  },
  "luminance": 0.0524
}

Semantic roles & 50–950 ramp

primary

#403E58

secondary

#85886A

accent

#BA6EB4

background

#F7F6F8

surface

#EDECEF

border

#C8C7CA

text

#08080B

muted

#7B7B7C

Preview Lab

Preview with #403E58

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

Preview Lab → · Contrast checker → · Palette generator →