#403B9D#403B9D

#403B9D is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.154 H 279.7°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#403B9D
RGB	rgb(64, 59, 157)
HSL	hsl(243, 45%, 42%)
HSV	hsv(243, 62%, 62%)
CMYK	cmyk(59.2%, 62.4%, 0%, 38.4%)
CIE-LAB	lab(31.00, 31.57, -52.85)
CIE-LCH	lch(31.00, 61.56, 300.85°)
OKLab	oklab(41.82% 0.0259 -0.1519)
OKLCH	oklch(41.82% 0.154 279.7)
XYZ	xyz(9.7622, 6.6516, 32.6612)
Luminance	0.0665 (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

#403B9D #989D3B

analogous

#3B679D #403B9D #713B9D

triadic

#403B9D #9D403B #3B9D40

tetradic

#403B9D #9D3B67 #989D3B #3B9D71

square

#403B9D #9D3B67 #989D3B #3B9D71

split-complementary

#403B9D #9D713B #679D3B

monochromatic

#1C1A44 #2E2A71 #403B9D #5B56BF #8682D0

Accessibility & contrast

On white

9.01

#403B9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#403B9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B9D

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B9D	#FFFFFF	#000000	##FFFFFF
##403B9D	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00459B

Tritanopia (blue-blind)

#025366

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #403b9d;
/* rgb */ color: rgb(64, 59, 157);
/* oklch */ color: oklch(41.8% 0.154 279.7);

Tailwind

colors: {
  custom: {
    50: '#7e71bb',
    500: '#403b9d',
    950: '#000000',
  },
}

SCSS

$custom: #403b9d;
$custom-light: #7e71bb;
$custom-dark: #000000;

JSON

{
  "hex": "#403b9d",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 157
  },
  "hsl": {
    "h": 243.061,
    "s": 45.37,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41818,
    "c": 0.15408,
    "h": 279.7
  },
  "luminance": 0.06652
}

Semantic roles & 50–950 ramp

primary

#403B9D

secondary

#B7BA7A

accent

#D553CE

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403B9D

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

Preview Lab → · Contrast checker → · Palette generator →