#403FCF#403FCF

#403FCF is a mid, highly saturated blue. Relative luminance 0.091; OKLCH L 47.0% C 0.214 H 274.7°. Best body text is #FFFFFF at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#403FCF
RGB	rgb(64, 63, 207)
HSL	hsl(240, 60%, 53%)
HSV	hsv(240, 70%, 81%)
CMYK	cmyk(69.1%, 69.6%, 0%, 18.8%)
CIE-LAB	lab(36.27, 45.81, -73.84)
CIE-LCH	lch(36.27, 86.89, 301.81°)
OKLab	oklab(46.98% 0.0175 -0.2134)
OKLCH	oklch(46.98% 0.214 274.7)
XYZ	xyz(15.1506, 9.1486, 59.9868)
Luminance	0.0915 (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

#403FCF #CECF3F

analogous

#3F86CF #403FCF #883FCF

triadic

#403FCF #CF403F #3FCF40

tetradic

#403FCF #CF3F86 #CECF3F #3FCF88

square

#403FCF #CF3F86 #CECF3F #3FCF88

split-complementary

#403FCF #CF883F #86CF3F

monochromatic

#1E1E76 #2B2AA7 #403FCF #7170DB #A1A1E7

Accessibility & contrast

On white

7.42

#403FCF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#403FCF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FCF

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FCF	#FFFFFF	#000000	##FFFFFF
##403FCF	1.00	7.42	2.83	7.42
#FFFFFF	7.42	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CD3

Deuteranopia (green-blind)

#004FCC

Tritanopia (blue-blind)

#006782

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #403fcf;
/* rgb */ color: rgb(64, 63, 207);
/* oklch */ color: oklch(47.0% 0.214 274.7);

Tailwind

colors: {
  custom: {
    50: '#8875df',
    500: '#403fcf',
    950: '#000000',
  },
}

SCSS

$custom: #403fcf;
$custom-light: #8875df;
$custom-dark: #000000;

JSON

{
  "hex": "#403fcf",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 207
  },
  "hsl": {
    "h": 240.417,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.46983,
    "c": 0.21411,
    "h": 274.7
  },
  "luminance": 0.0915
}

Semantic roles & 50–950 ramp

primary

#403FCF

secondary

#D4D496

accent

#E345E2

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #403FCF

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

Preview Lab → · Contrast checker → · Palette generator →