#403BAC#403BAC

#403BAC is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.1% C 0.174 H 278.1°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#403BAC
RGB	rgb(64, 59, 172)
HSL	hsl(243, 49%, 45%)
HSV	hsv(243, 66%, 67%)
CMYK	cmyk(62.8%, 65.7%, 0%, 32.5%)
CIE-LAB	lab(32.25, 36.60, -59.84)
CIE-LCH	lch(32.25, 70.15, 301.45°)
OKLab	oklab(43.12% 0.0247 -0.1724)
OKLCH	oklch(43.12% 0.174 278.1)
XYZ	xyz(11.1223, 7.1956, 39.8245)
Luminance	0.0720 (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

#403BAC #A7AC3B

analogous

#3B6EAC #403BAC #783BAC

triadic

#403BAC #AC403B #3BAC40

tetradic

#403BAC #AC3B6E #A7AC3B #3BAC78

square

#403BAC #AC3B6E #A7AC3B #3BAC78

split-complementary

#403BAC #AC783B #6EAC3B

monochromatic

#1E1C51 #2F2B7E #403BAC #625DC7 #8E8AD7

Accessibility & contrast

On white

8.61

#403BAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#403BAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BAC

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BAC	#FFFFFF	#000000	##FFFFFF
##403BAC	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#00586E

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403bac;
/* rgb */ color: rgb(64, 59, 172);
/* oklch */ color: oklch(43.1% 0.174 278.1);

Tailwind

colors: {
  custom: {
    50: '#8171c6',
    500: '#403bac',
    950: '#000000',
  },
}

SCSS

$custom: #403bac;
$custom-light: #8171c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403bac",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 172
  },
  "hsl": {
    "h": 242.655,
    "s": 48.918,
    "l": 45.294
  },
  "oklch": {
    "l": 0.43117,
    "c": 0.1742,
    "h": 278.1
  },
  "luminance": 0.07196
}

Semantic roles & 50–950 ramp

primary

#403BAC

secondary

#BFC181

accent

#D84FD2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403BAC

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

Preview Lab → · Contrast checker → · Palette generator →