#403BC9#403BC9

#403BC9 is a mid, highly saturated blue. Relative luminance 0.084; OKLCH L 45.8% C 0.211 H 275.7°. Best body text is #FFFFFF at 7.82:1 contrast (WCAG AA passes).

Color values

HEX	#403BC9
RGB	rgb(64, 59, 201)
HSL	hsl(242, 57%, 51%)
HSV	hsv(242, 71%, 79%)
CMYK	cmyk(68.2%, 70.6%, 0%, 21.2%)
CIE-LAB	lab(34.87, 46.15, -72.65)
CIE-LCH	lch(34.87, 86.07, 302.42°)
OKLab	oklab(45.81% 0.0208 -0.2099)
OKLCH	oklch(45.81% 0.211 275.7)
XYZ	xyz(14.2175, 8.4337, 56.1256)
Luminance	0.0843 (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

#403BC9 #C4C93B

analogous

#3B7DC9 #403BC9 #873BC9

triadic

#403BC9 #C9403B #3BC940

tetradic

#403BC9 #C93B7D #C4C93B #3BC987

square

#403BC9 #C93B7D #C4C93B #3BC987

split-complementary

#403BC9 #C9873B #7DC93B

monochromatic

#201E6C #2F2B9C #403BC9 #6F6BD6 #9E9BE3

Accessibility & contrast

On white

7.82

#403BC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#403BC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403BC9

7.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403BC9	#FFFFFF	#000000	##FFFFFF
##403BC9	1.00	7.82	2.69	7.82
#FFFFFF	7.82	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058CD

Deuteranopia (green-blind)

#004CC6

Tritanopia (blue-blind)

#00627E

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #403bc9;
/* rgb */ color: rgb(64, 59, 201);
/* oklch */ color: oklch(45.8% 0.211 275.7);

Tailwind

colors: {
  custom: {
    50: '#8772db',
    500: '#403bc9',
    950: '#000000',
  },
}

SCSS

$custom: #403bc9;
$custom-light: #8772db;
$custom-dark: #000000;

JSON

{
  "hex": "#403bc9",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 201
  },
  "hsl": {
    "h": 242.113,
    "s": 56.8,
    "l": 50.98
  },
  "oklch": {
    "l": 0.4581,
    "c": 0.21096,
    "h": 275.7
  },
  "luminance": 0.08435
}

Semantic roles & 50–950 ramp

primary

#403BC9

secondary

#CDCF90

accent

#E048DB

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #403BC9

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

Preview Lab → · Contrast checker → · Palette generator →