#403FC8#403FC8

#403FC8 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.3% C 0.205 H 275.1°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#403FC8
RGB	rgb(64, 63, 200)
HSL	hsl(240, 55%, 52%)
HSV	hsv(240, 69%, 78%)
CMYK	cmyk(68%, 68.5%, 0%, 21.6%)
CIE-LAB	lab(35.62, 43.50, -70.83)
CIE-LCH	lch(35.62, 83.12, 301.56°)
OKLab	oklab(46.32% 0.0184 -0.2046)
OKLCH	oklch(46.32% 0.205 275.1)
XYZ	xyz(14.3137, 8.8138, 55.5793)
Luminance	0.0882 (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

#403FC8 #C7C83F

analogous

#3F83C8 #403FC8 #853FC8

triadic

#403FC8 #C8403F #3FC840

tetradic

#403FC8 #C83F83 #C7C83F #3FC885

square

#403FC8 #C83F83 #C7C83F #3FC885

split-complementary

#403FC8 #C8853F #83C83F

monochromatic

#201F6D #2E2D9D #403FC8 #6F6FD6 #9F9EE3

Accessibility & contrast

On white

7.60

#403FC8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#403FC8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FC8

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FC8	#FFFFFF	#000000	##FFFFFF
##403FC8	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACC

Deuteranopia (green-blind)

#004DC5

Tritanopia (blue-blind)

#00647E

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #403fc8;
/* rgb */ color: rgb(64, 63, 200);
/* oklch */ color: oklch(46.3% 0.205 275.1);

Tailwind

colors: {
  custom: {
    50: '#8675da',
    500: '#403fc8',
    950: '#000000',
  },
}

SCSS

$custom: #403fc8;
$custom-light: #8675da;
$custom-dark: #000000;

JSON

{
  "hex": "#403fc8",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 200
  },
  "hsl": {
    "h": 240.438,
    "s": 55.466,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46322,
    "c": 0.20544,
    "h": 275.1
  },
  "luminance": 0.08815
}

Semantic roles & 50–950 ramp

primary

#403FC8

secondary

#CFD093

accent

#DF49DE

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #403FC8

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

Preview Lab → · Contrast checker → · Palette generator →