#403FCC#403FCC

#403FCC is a mid, highly saturated blue. Relative luminance 0.090; OKLCH L 46.7% C 0.210 H 274.9°. Best body text is #FFFFFF at 7.50:1 contrast (WCAG AA passes).

Color values

HEX	#403FCC
RGB	rgb(64, 63, 204)
HSL	hsl(240, 58%, 52%)
HSV	hsv(240, 69%, 80%)
CMYK	cmyk(68.6%, 69.1%, 0%, 20%)
CIE-LAB	lab(35.99, 44.82, -72.56)
CIE-LCH	lch(35.99, 85.28, 301.71°)
OKLab	oklab(46.7% 0.0179 -0.2096)
OKLCH	oklch(46.7% 0.21 274.9)
XYZ	xyz(14.7873, 9.0033, 58.0735)
Luminance	0.0901 (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

#403FCC #CBCC3F

analogous

#3F84CC #403FCC #873FCC

triadic

#403FCC #CC403F #3FCC40

tetradic

#403FCC #CC3F84 #CBCC3F #3FCC87

square

#403FCC #CC3F84 #CBCC3F #3FCC87

split-complementary

#403FCC #CC873F #84CC3F

monochromatic

#1F1E72 #2C2BA3 #403FCC #706FD9 #A0A0E6

Accessibility & contrast

On white

7.50

#403FCC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.80

#403FCC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FCC

7.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FCC	#FFFFFF	#000000	##FFFFFF
##403FCC	1.00	7.50	2.80	7.50
#FFFFFF	7.50	1.00	21.00	1.00
#000000	2.80	21.00	1.00	21.00
##FFFFFF	7.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005BD0

Deuteranopia (green-blind)

#004EC9

Tritanopia (blue-blind)

#006581

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #403fcc;
/* rgb */ color: rgb(64, 63, 204);
/* oklch */ color: oklch(46.7% 0.210 274.9);

Tailwind

colors: {
  custom: {
    50: '#8775dd',
    500: '#403fcc',
    950: '#000000',
  },
}

SCSS

$custom: #403fcc;
$custom-light: #8775dd;
$custom-dark: #000000;

JSON

{
  "hex": "#403fcc",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 204
  },
  "hsl": {
    "h": 240.426,
    "s": 58.025,
    "l": 52.353
  },
  "oklch": {
    "l": 0.46699,
    "c": 0.21041,
    "h": 274.9
  },
  "luminance": 0.09005
}

Semantic roles & 50–950 ramp

primary

#403FCC

secondary

#D2D295

accent

#E147E0

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #403FCC

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

Preview Lab → · Contrast checker → · Palette generator →