#403F73#403F73

#403F73 is a dark, moderate blue. Relative luminance 0.059; OKLCH L 39.5% C 0.086 H 282.6°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#403F73
RGB	rgb(64, 63, 115)
HSL	hsl(241, 29%, 35%)
HSV	hsv(241, 45%, 45%)
CMYK	cmyk(44.3%, 45.2%, 0%, 54.9%)
CIE-LAB	lab(29.11, 14.98, -29.88)
CIE-LCH	lch(29.11, 33.42, 296.63°)
OKLab	oklab(39.47% 0.0188 -0.0844)
OKLCH	oklch(39.47% 0.086 282.6)
XYZ	xyz(6.9855, 5.8825, 16.9837)
Luminance	0.0588 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F73 #72733F

analogous

#3F5873 #403F73 #5A3F73

triadic

#403F73 #73403F #3F7340

tetradic

#403F73 #733F58 #72733F #3F735A

square

#403F73 #733F58 #72733F #3F735A

split-complementary

#403F73 #735A3F #58733F

monochromatic

#141424 #2A294B #403F73 #56559B #7978B5

Accessibility & contrast

On white

9.65

#403F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#403F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F73

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F73	#FFFFFF	#000000	##FFFFFF
##403F73	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C4675

Deuteranopia (green-blind)

#294372

Tritanopia (blue-blind)

#304A53

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #403f73;
/* rgb */ color: rgb(64, 63, 115);
/* oklch */ color: oklch(39.5% 0.086 282.6);

Tailwind

colors: {
  custom: {
    50: '#78749b',
    500: '#403f73',
    950: '#000000',
  },
}

SCSS

$custom: #403f73;
$custom-light: #78749b;
$custom-dark: #000000;

JSON

{
  "hex": "#403f73",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 241.154,
    "s": 29.213,
    "l": 34.902
  },
  "oklch": {
    "l": 0.39474,
    "c": 0.08646,
    "h": 282.6
  },
  "luminance": 0.05883
}

Semantic roles & 50–950 ramp

primary

#403F73

secondary

#9F9F6E

accent

#C562C4

background

#F7F7F9

surface

#EDEDF2

border

#C8C8CC

text

#09080E

muted

#7B7B7E

Preview Lab

Preview with #403F73

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

Preview Lab → · Contrast checker → · Palette generator →