#403BBA#403BBA

#403BBA is a dark, vivid blue. Relative luminance 0.078; OKLCH L 44.4% C 0.192 H 276.9°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#403BBA
RGB	rgb(64, 59, 186)
HSL	hsl(242, 52%, 48%)
HSV	hsv(242, 68%, 73%)
CMYK	cmyk(65.6%, 68.3%, 0%, 27.1%)
CIE-LAB	lab(33.48, 41.24, -66.14)
CIE-LCH	lch(33.48, 77.94, 301.95°)
OKLab	oklab(44.39% 0.023 -0.1909)
OKLCH	oklch(44.39% 0.192 276.9)
XYZ	xyz(12.5384, 7.7620, 47.2823)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.69

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403BBA #B5BA3B

analogous

#3B75BA #403BBA #7F3BBA

triadic

#403BBA #BA403B #3BBA40

tetradic

#403BBA #BA3B75 #B5BA3B #3BBA7F

square

#403BBA #BA3B75 #B5BA3B #3BBA7F

split-complementary

#403BBA #BA7F3B #75BA3B

monochromatic

#201E5D #302C8C #403BBA #6864CE #9693DD

Accessibility & contrast

On white

8.23

#403BBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#403BBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BBA

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BBA	#FFFFFF	#000000	##FFFFFF
##403BBA	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054BE

Deuteranopia (green-blind)

#0049B8

Tritanopia (blue-blind)

#005D76

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #403bba;
/* rgb */ color: rgb(64, 59, 186);
/* oklch */ color: oklch(44.4% 0.192 276.9);

Tailwind

colors: {
  custom: {
    50: '#8472d0',
    500: '#403bba',
    950: '#000000',
  },
}

SCSS

$custom: #403bba;
$custom-light: #8472d0;
$custom-dark: #000000;

JSON

{
  "hex": "#403bba",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 186
  },
  "hsl": {
    "h": 242.362,
    "s": 51.837,
    "l": 48.039
  },
  "oklch": {
    "l": 0.44391,
    "c": 0.19226,
    "h": 276.9
  },
  "luminance": 0.07763
}

Semantic roles & 50–950 ramp

primary

#403BBA

secondary

#C5C889

accent

#DB4DD6

background

#F8F6FC

surface

#F0ECF9

border

#CBC7D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #403BBA

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

Preview Lab → · Contrast checker → · Palette generator →