#403EB2#403EB2

#403EB2 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 44.2% C 0.178 H 277.0°. Best body text is #FFFFFF at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#403EB2
RGB	rgb(64, 62, 178)
HSL	hsl(241, 48%, 47%)
HSV	hsv(241, 65%, 70%)
CMYK	cmyk(64%, 65.2%, 0%, 30.2%)
CIE-LAB	lab(33.45, 36.76, -61.45)
CIE-LCH	lch(33.45, 71.61, 300.89°)
OKLab	oklab(44.15% 0.0216 -0.1771)
OKLCH	oklch(44.15% 0.178 277)
XYZ	xyz(11.8702, 7.7486, 42.9809)
Luminance	0.0775 (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

#403EB2 #B0B23E

analogous

#3E76B2 #403EB2 #7A3EB2

triadic

#403EB2 #B2403E #3EB240

tetradic

#403EB2 #B23E76 #B0B23E #3EB27A

square

#403EB2 #B23E76 #B0B23E #3EB27A

split-complementary

#403EB2 #B27A3E #76B23E

monochromatic

#1F1E57 #302E85 #403EB2 #6664C9 #9392D9

Accessibility & contrast

On white

8.24

#403EB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#403EB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EB2

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EB2	#FFFFFF	#000000	##FFFFFF
##403EB2	1.00	8.24	2.55	8.24
#FFFFFF	8.24	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B6

Deuteranopia (green-blind)

#004AB0

Tritanopia (blue-blind)

#005C72

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #403eb2;
/* rgb */ color: rgb(64, 62, 178);
/* oklch */ color: oklch(44.2% 0.178 277.0);

Tailwind

colors: {
  custom: {
    50: '#8274ca',
    500: '#403eb2',
    950: '#000000',
  },
}

SCSS

$custom: #403eb2;
$custom-light: #8274ca;
$custom-dark: #000000;

JSON

{
  "hex": "#403eb2",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 178
  },
  "hsl": {
    "h": 241.034,
    "s": 48.333,
    "l": 47.059
  },
  "oklch": {
    "l": 0.44154,
    "c": 0.17845,
    "h": 277
  },
  "luminance": 0.0775
}

Semantic roles & 50–950 ramp

primary

#403EB2

secondary

#C3C488

accent

#D850D6

background

#F8F7FC

surface

#F0EDF8

border

#CBC8D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403EB2

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

Preview Lab → · Contrast checker → · Palette generator →