#403C64#403C64

#403C64 is a dark, moderate blue. Relative luminance 0.052; OKLCH L 37.9% C 0.067 H 287.3°. Best body text is #FFFFFF at 10.25:1 contrast (WCAG AA passes).

Color values

HEX	#403C64
RGB	rgb(64, 60, 100)
HSL	hsl(246, 25%, 31%)
HSV	hsv(246, 40%, 39%)
CMYK	cmyk(36%, 40%, 0%, 60.8%)
CIE-LAB	lab(27.41, 12.29, -22.99)
CIE-LCH	lch(27.41, 26.07, 298.13°)
OKLab	oklab(37.9% 0.02 -0.0643)
OKLCH	oklch(37.9% 0.067 287.3)
XYZ	xyz(6.0298, 5.2416, 12.7482)
Luminance	0.0524 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C64 #60643C

analogous

#3C4C64 #403C64 #543C64

triadic

#403C64 #64403C #3C6440

tetradic

#403C64 #643C4C #60643C #3C6454

square

#403C64 #643C4C #60643C #3C6454

split-complementary

#403C64 #64543C #4C643C

monochromatic

#0F0E18 #28253E #403C64 #58538A #7671AA

Accessibility & contrast

On white

10.25

#403C64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#403C64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C64

10.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C64	#FFFFFF	#000000	##FFFFFF
##403C64	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)

#304266

Deuteranopia (green-blind)

#2F4063

Tritanopia (blue-blind)

#37434B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #403c64;
/* rgb */ color: rgb(64, 60, 100);
/* oklch */ color: oklch(37.9% 0.067 287.3);

Tailwind

colors: {
  custom: {
    50: '#767190',
    500: '#403c64',
    950: '#000000',
  },
}

SCSS

$custom: #403c64;
$custom-light: #767190;
$custom-dark: #000000;

JSON

{
  "hex": "#403c64",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 100
  },
  "hsl": {
    "h": 246,
    "s": 25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.37901,
    "c": 0.0674,
    "h": 287.3
  },
  "luminance": 0.05242
}

Semantic roles & 50–950 ramp

primary

#403C64

secondary

#909468

accent

#C166B8

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#08070C

muted

#7B7A7D

Preview Lab

Preview with #403C64

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

Preview Lab → · Contrast checker → · Palette generator →