#403CAC#403CAC

#403CAC is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.173 H 277.9°. Best body text is #FFFFFF at 8.54:1 contrast (WCAG AA passes).

Color values

HEX	#403CAC
RGB	rgb(64, 60, 172)
HSL	hsl(242, 48%, 45%)
HSV	hsv(242, 65%, 67%)
CMYK	cmyk(62.8%, 65.1%, 0%, 32.5%)
CIE-LAB	lab(32.48, 35.98, -59.47)
CIE-LCH	lch(32.48, 69.50, 301.18°)
OKLab	oklab(43.29% 0.0238 -0.1713)
OKLCH	oklch(43.29% 0.173 277.9)
XYZ	xyz(11.1742, 7.2994, 39.8418)
Luminance	0.0730 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403CAC #A8AC3C

analogous

#3C70AC #403CAC #783CAC

triadic

#403CAC #AC403C #3CAC40

tetradic

#403CAC #AC3C70 #A8AC3C #3CAC78

square

#403CAC #AC3C70 #A8AC3C #3CAC78

split-complementary

#403CAC #AC783C #70AC3C

monochromatic

#1E1C51 #2F2C7F #403CAC #625EC7 #8E8CD7

Accessibility & contrast

On white

8.54

#403CAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.46

#403CAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CAC

8.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CAC	#FFFFFF	#000000	##FFFFFF
##403CAC	1.00	8.54	2.46	8.54
#FFFFFF	8.54	1.00	21.00	1.00
#000000	2.46	21.00	1.00	21.00
##FFFFFF	8.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B0

Deuteranopia (green-blind)

#0048AA

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403cac;
/* rgb */ color: rgb(64, 60, 172);
/* oklch */ color: oklch(43.3% 0.173 277.9);

Tailwind

colors: {
  custom: {
    50: '#8172c6',
    500: '#403cac',
    950: '#000000',
  },
}

SCSS

$custom: #403cac;
$custom-light: #8172c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403cac",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 172
  },
  "hsl": {
    "h": 242.143,
    "s": 48.276,
    "l": 45.49
  },
  "oklch": {
    "l": 0.43285,
    "c": 0.17298,
    "h": 277.9
  },
  "luminance": 0.073
}

Semantic roles & 50–950 ramp

primary

#403CAC

secondary

#BFC182

accent

#D850D3

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403CAC

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

Preview Lab → · Contrast checker → · Palette generator →