#403AAF#403AAF

#403AAF is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.2% C 0.179 H 278.1°. Best body text is #FFFFFF at 8.60:1 contrast (WCAG AA passes).

Color values

HEX	#403AAF
RGB	rgb(64, 58, 175)
HSL	hsl(243, 50%, 46%)
HSV	hsv(243, 67%, 69%)
CMYK	cmyk(63.4%, 66.9%, 0%, 31.4%)
CIE-LAB	lab(32.28, 38.20, -61.58)
CIE-LCH	lch(32.28, 72.47, 301.82°)
OKLab	oklab(43.22% 0.0252 -0.1775)
OKLCH	oklch(43.22% 0.179 278.1)
XYZ	xyz(11.3628, 7.2103, 41.3421)
Luminance	0.0721 (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

#403AAF #A9AF3A

analogous

#3A6EAF #403AAF #7A3AAF

triadic

#403AAF #AF403A #3AAF40

tetradic

#403AAF #AF3A6E #A9AF3A #3AAF7A

square

#403AAF #AF3A6E #A9AF3A #3AAF7A

split-complementary

#403AAF #AF7A3A #6EAF3A

monochromatic

#1E1C53 #2F2B81 #403AAF #625DC9 #8F8BD9

Accessibility & contrast

On white

8.60

#403AAF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#403AAF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AAF

8.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AAF	#FFFFFF	#000000	##FFFFFF
##403AAF	1.00	8.60	2.44	8.60
#FFFFFF	8.60	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B3

Deuteranopia (green-blind)

#0047AD

Tritanopia (blue-blind)

#00586F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403aaf;
/* rgb */ color: rgb(64, 58, 175);
/* oklch */ color: oklch(43.2% 0.179 278.1);

Tailwind

colors: {
  custom: {
    50: '#8271c8',
    500: '#403aaf',
    950: '#000000',
  },
}

SCSS

$custom: #403aaf;
$custom-light: #8271c8;
$custom-dark: #000000;

JSON

{
  "hex": "#403aaf",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 175
  },
  "hsl": {
    "h": 243.077,
    "s": 50.215,
    "l": 45.686
  },
  "oklch": {
    "l": 0.43222,
    "c": 0.17931,
    "h": 278.1
  },
  "luminance": 0.07211
}

Semantic roles & 50–950 ramp

primary

#403AAF

secondary

#C0C382

accent

#DA4ED3

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403AAF

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

Preview Lab → · Contrast checker → · Palette generator →