#403FDD#403FDD

#403FDD is a mid, highly saturated blue. Relative luminance 0.099; OKLCH L 48.3% C 0.231 H 273.8°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#403FDD
RGB	rgb(64, 63, 221)
HSL	hsl(240, 70%, 56%)
HSV	hsv(240, 71%, 87%)
CMYK	cmyk(71%, 71.5%, 0%, 13.3%)
CIE-LAB	lab(37.60, 50.35, -79.71)
CIE-LCH	lch(37.60, 94.29, 302.28°)
OKLab	oklab(48.33% 0.0153 -0.2305)
OKLCH	oklch(48.33% 0.231 273.8)
XYZ	xyz(16.9387, 9.8638, 69.4038)
Luminance	0.0987 (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

#403FDD #DCDD3F

analogous

#3F8DDD #403FDD #8F3FDD

triadic

#403FDD #DD403F #3FDD40

tetradic

#403FDD #DD3F8D #DCDD3F #3FDD8F

square

#403FDD #DD3F8D #DCDD3F #3FDD8F

split-complementary

#403FDD #DD8F3F #8DDD3F

monochromatic

#191889 #2322BD #403FDD #7473E6 #A7A7EF

Accessibility & contrast

On white

7.06

#403FDD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#403FDD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FDD

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FDD	#FFFFFF	#000000	##FFFFFF
##403FDD	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0060E2

Deuteranopia (green-blind)

#0051DA

Tritanopia (blue-blind)

#006C8A

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #403fdd;
/* rgb */ color: rgb(64, 63, 221);
/* oklch */ color: oklch(48.3% 0.231 273.8);

Tailwind

colors: {
  custom: {
    50: '#8b76e9',
    500: '#403fdd',
    950: '#000000',
  },
}

SCSS

$custom: #403fdd;
$custom-light: #8b76e9;
$custom-dark: #000000;

JSON

{
  "hex": "#403fdd",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 221
  },
  "hsl": {
    "h": 240.38,
    "s": 69.912,
    "l": 55.686
  },
  "oklch": {
    "l": 0.48334,
    "c": 0.23106,
    "h": 273.8
  },
  "luminance": 0.09865
}

Semantic roles & 50–950 ramp

primary

#403FDD

secondary

#DCDD9B

accent

#ED3BEC

background

#F9F7FE

surface

#F2EDFD

border

#CCC8D5

text

#0E0816

muted

#7E7B84

Preview Lab

Preview with #403FDD

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

Preview Lab → · Contrast checker → · Palette generator →