#403C58#403C58

#403C58 is a dark, muted blue. Relative luminance 0.050; OKLCH L 37.2% C 0.048 H 290.4°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#403C58
RGB	rgb(64, 60, 88)
HSL	hsl(249, 19%, 29%)
HSV	hsv(249, 32%, 35%)
CMYK	cmyk(27.3%, 31.8%, 0%, 65.5%)
CIE-LAB	lab(26.81, 8.77, -16.16)
CIE-LCH	lch(26.81, 18.39, 298.49°)
OKLab	oklab(37.24% 0.0166 -0.0447)
OKLCH	oklch(37.24% 0.048 290.4)
XYZ	xyz(5.4912, 5.0262, 9.9115)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C58 #54583C

analogous

#3C4658 #403C58 #4E3C58

triadic

#403C58 #58403C #3C5840

tetradic

#403C58 #583C46 #54583C #3C584E

square

#403C58 #583C46 #54583C #3C584E

split-complementary

#403C58 #584E3C #46583C

monochromatic

#0D0C12 #262334 #403C58 #5A557C #77719E

Accessibility & contrast

On white

10.47

#403C58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#403C58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C58

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C58	#FFFFFF	#000000	##FFFFFF
##403C58	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354059

Deuteranopia (green-blind)

#353F57

Tritanopia (blue-blind)

#3B4146

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #403c58;
/* rgb */ color: rgb(64, 60, 88);
/* oklch */ color: oklch(37.2% 0.048 290.4);

Tailwind

colors: {
  custom: {
    50: '#757187',
    500: '#403c58',
    950: '#000000',
  },
}

SCSS

$custom: #403c58;
$custom-light: #757187;
$custom-dark: #000000;

JSON

{
  "hex": "#403c58",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 88
  },
  "hsl": {
    "h": 248.571,
    "s": 18.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.3724,
    "c": 0.04767,
    "h": 290.4
  },
  "luminance": 0.05026
}

Semantic roles & 50–950 ramp

primary

#403C58

secondary

#838868

accent

#BC6CB0

background

#F7F6F8

surface

#EDECEF

border

#C8C7CA

text

#08070B

muted

#7B7A7C

Preview Lab

Preview with #403C58

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

Preview Lab → · Contrast checker → · Palette generator →