#403EA0#403EA0

#403EA0 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.154 H 278.5°. Best body text is #FFFFFF at 8.70:1 contrast (WCAG AA passes).

Color values

HEX	#403EA0
RGB	rgb(64, 62, 160)
HSL	hsl(241, 44%, 44%)
HSV	hsv(241, 61%, 63%)
CMYK	cmyk(60%, 61.2%, 0%, 37.3%)
CIE-LAB	lab(31.97, 30.68, -53.08)
CIE-LCH	lch(31.97, 61.31, 300.02°)
OKLab	oklab(42.61% 0.0228 -0.1526)
OKLCH	oklch(42.61% 0.154 278.5)
XYZ	xyz(10.1801, 7.0726, 34.0796)
Luminance	0.0707 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.34

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403EA0 #9EA03E

analogous

#3E6DA0 #403EA0 #713EA0

triadic

#403EA0 #A0403E #3EA040

tetradic

#403EA0 #A03E6D #9EA03E #3EA071

square

#403EA0 #A03E6D #9EA03E #3EA071

split-complementary

#403EA0 #A0713E #6DA03E

monochromatic

#1D1C48 #2E2D74 #403EA0 #5E5CC0 #8988D1

Accessibility & contrast

On white

8.70

#403EA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#403EA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EA0

8.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EA0	#FFFFFF	#000000	##FFFFFF
##403EA0	1.00	8.70	2.41	8.70
#FFFFFF	8.70	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA3

Deuteranopia (green-blind)

#00479E

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403ea0;
/* rgb */ color: rgb(64, 62, 160);
/* oklch */ color: oklch(42.6% 0.154 278.5);

Tailwind

colors: {
  custom: {
    50: '#7f73bd',
    500: '#403ea0',
    950: '#000000',
  },
}

SCSS

$custom: #403ea0;
$custom-light: #7f73bd;
$custom-dark: #000000;

JSON

{
  "hex": "#403ea0",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 160
  },
  "hsl": {
    "h": 241.224,
    "s": 44.144,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42607,
    "c": 0.15427,
    "h": 278.5
  },
  "luminance": 0.07073
}

Semantic roles & 50–950 ramp

primary

#403EA0

secondary

#BABB7F

accent

#D454D1

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403EA0

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

Preview Lab → · Contrast checker → · Palette generator →