#403FF1#403FF1

#403FF1 is a mid, highly saturated blue. Relative luminance 0.110; OKLCH L 50.3% C 0.254 H 272.7°. Best body text is #FFFFFF at 6.56:1 contrast (WCAG AA passes).

Color values

HEX	#403FF1
RGB	rgb(64, 63, 241)
HSL	hsl(240, 86%, 60%)
HSV	hsv(240, 74%, 95%)
CMYK	cmyk(73.4%, 73.9%, 0%, 5.5%)
CIE-LAB	lab(39.57, 56.69, -87.82)
CIE-LCH	lch(39.57, 104.53, 302.84°)
OKLab	oklab(50.33% 0.012 -0.2542)
OKLCH	oklch(50.33% 0.254 272.7)
XYZ	xyz(19.7637, 10.9938, 84.2825)
Luminance	0.1100 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FF1 #F0F13F

analogous

#3F97F1 #403FF1 #993FF1

triadic

#403FF1 #F1403F #3FF140

tetradic

#403FF1 #F13F97 #F0F13F #3FF199

square

#403FF1 #F13F97 #F0F13F #3FF199

split-complementary

#403FF1 #F1993F #97F13F

monochromatic

#0D0CA9 #1211E2 #403FF1 #7978F5 #B1B1F9

Accessibility & contrast

On white

6.56

#403FF1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#403FF1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #403FF1

6.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FF1	#FFFFFF	#000000	##FFFFFF
##403FF1	1.00	6.56	3.20	6.56
#FFFFFF	6.56	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0066F6

Deuteranopia (green-blind)

#0054EE

Tritanopia (blue-blind)

#007395

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #403ff1;
/* rgb */ color: rgb(64, 63, 241);
/* oklch */ color: oklch(50.3% 0.254 272.7);

Tailwind

colors: {
  custom: {
    50: '#8f76f7',
    500: '#403ff1',
    950: '#000000',
  },
}

SCSS

$custom: #403ff1;
$custom-light: #8f76f7;
$custom-dark: #000000;

JSON

{
  "hex": "#403ff1",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 241
  },
  "hsl": {
    "h": 240.337,
    "s": 86.408,
    "l": 59.608
  },
  "oklch": {
    "l": 0.50325,
    "c": 0.25444,
    "h": 272.7
  },
  "luminance": 0.10996
}

Semantic roles & 50–950 ramp

primary

#403FF1

secondary

#E8E8A3

accent

#FD2BFB

background

#F9F7FF

surface

#F2EDFF

border

#CCC8D7

text

#0F0917

muted

#7E7B85

Preview Lab

Preview with #403FF1

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

Preview Lab → · Contrast checker → · Palette generator →