#403EA1#403EA1

#403EA1 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.7% C 0.156 H 278.4°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#403EA1
RGB	rgb(64, 62, 161)
HSL	hsl(241, 44%, 44%)
HSV	hsv(241, 61%, 63%)
CMYK	cmyk(60.2%, 61.5%, 0%, 36.9%)
CIE-LAB	lab(32.05, 31.02, -53.56)
CIE-LCH	lch(32.05, 61.89, 300.08°)
OKLab	oklab(42.69% 0.0228 -0.154)
OKLCH	oklch(42.69% 0.156 278.4)
XYZ	xyz(10.2679, 7.1077, 34.5421)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.20

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403EA1 #9FA13E

analogous

#3E6DA1 #403EA1 #713EA1

triadic

#403EA1 #A1403E #3EA140

tetradic

#403EA1 #A13E6D #9FA13E #3EA171

square

#403EA1 #A13E6D #9FA13E #3EA171

split-complementary

#403EA1 #A1713E #6DA13E

monochromatic

#1D1C49 #2E2D75 #403EA1 #5E5CC0 #8A88D1

Accessibility & contrast

On white

8.67

#403EA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#403EA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EA1

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EA1	#FFFFFF	#000000	##FFFFFF
##403EA1	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA4

Deuteranopia (green-blind)

#00479F

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403ea1;
/* rgb */ color: rgb(64, 62, 161);
/* oklch */ color: oklch(42.7% 0.156 278.4);

Tailwind

colors: {
  custom: {
    50: '#7f73be',
    500: '#403ea1',
    950: '#000000',
  },
}

SCSS

$custom: #403ea1;
$custom-light: #7f73be;
$custom-dark: #000000;

JSON

{
  "hex": "#403ea1",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 161
  },
  "hsl": {
    "h": 241.212,
    "s": 44.395,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4269,
    "c": 0.15564,
    "h": 278.4
  },
  "luminance": 0.07108
}

Semantic roles & 50–950 ramp

primary

#403EA1

secondary

#BBBC7F

accent

#D454D2

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403EA1

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

Preview Lab → · Contrast checker → · Palette generator →