#403CB0#403CB0

#403CB0 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.6% C 0.178 H 277.6°. Best body text is #FFFFFF at 8.43:1 contrast (WCAG AA passes).

Color values

HEX	#403CB0
RGB	rgb(64, 60, 176)
HSL	hsl(242, 49%, 46%)
HSV	hsv(242, 66%, 69%)
CMYK	cmyk(63.6%, 65.9%, 0%, 31%)
CIE-LAB	lab(32.82, 37.32, -61.29)
CIE-LCH	lch(32.82, 71.76, 301.34°)
OKLab	oklab(43.64% 0.0235 -0.1767)
OKLCH	oklch(43.64% 0.178 277.6)
XYZ	xyz(11.5642, 7.4554, 41.8955)
Luminance	0.0746 (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

#403CB0 #ACB03C

analogous

#3C72B0 #403CB0 #7A3CB0

triadic

#403CB0 #B0403C #3CB040

tetradic

#403CB0 #B03C72 #ACB03C #3CB07A

square

#403CB0 #B03C72 #ACB03C #3CB07A

split-complementary

#403CB0 #B07A3C #72B03C

monochromatic

#1F1D55 #2F2C82 #403CB0 #6460C9 #918ED8

Accessibility & contrast

On white

8.43

#403CB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#403CB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CB0

8.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CB0	#FFFFFF	#000000	##FFFFFF
##403CB0	1.00	8.43	2.49	8.43
#FFFFFF	8.43	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052B4

Deuteranopia (green-blind)

#0048AE

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #403cb0;
/* rgb */ color: rgb(64, 60, 176);
/* oklch */ color: oklch(43.6% 0.178 277.6);

Tailwind

colors: {
  custom: {
    50: '#8272c9',
    500: '#403cb0',
    950: '#000000',
  },
}

SCSS

$custom: #403cb0;
$custom-light: #8272c9;
$custom-dark: #000000;

JSON

{
  "hex": "#403cb0",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 176
  },
  "hsl": {
    "h": 242.069,
    "s": 49.153,
    "l": 46.275
  },
  "oklch": {
    "l": 0.43641,
    "c": 0.17823,
    "h": 277.6
  },
  "luminance": 0.07456
}

Semantic roles & 50–950 ramp

primary

#403CB0

secondary

#C1C385

accent

#D94FD4

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403CB0

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

Preview Lab → · Contrast checker → · Palette generator →