#403C9D#403C9D

#403C9D is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.153 H 279.4°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#403C9D
RGB	rgb(64, 60, 157)
HSL	hsl(242, 45%, 43%)
HSV	hsv(242, 62%, 62%)
CMYK	cmyk(59.2%, 61.8%, 0%, 38.4%)
CIE-LAB	lab(31.24, 30.94, -52.45)
CIE-LCH	lch(31.24, 60.89, 300.53°)
OKLab	oklab(42% 0.0249 -0.1507)
OKLCH	oklch(42% 0.153 279.4)
XYZ	xyz(9.8141, 6.7553, 32.6785)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.64

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C9D #999D3C

analogous

#3C699D #403C9D #703C9D

triadic

#403C9D #9D403C #3C9D40

tetradic

#403C9D #9D3C69 #999D3C #3C9D70

square

#403C9D #9D3C69 #999D3C #3C9D70

split-complementary

#403C9D #9D703C #699D3C

monochromatic

#1C1A44 #2E2B71 #403C9D #5C57BF #8784D0

Accessibility & contrast

On white

8.93

#403C9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#403C9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C9D

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C9D	#FFFFFF	#000000	##FFFFFF
##403C9D	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00469B

Tritanopia (blue-blind)

#025466

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403c9d;
/* rgb */ color: rgb(64, 60, 157);
/* oklch */ color: oklch(42.0% 0.153 279.4);

Tailwind

colors: {
  custom: {
    50: '#7e72bb',
    500: '#403c9d',
    950: '#000000',
  },
}

SCSS

$custom: #403c9d;
$custom-light: #7e72bb;
$custom-dark: #000000;

JSON

{
  "hex": "#403c9d",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 157
  },
  "hsl": {
    "h": 242.474,
    "s": 44.7,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41996,
    "c": 0.15276,
    "h": 279.4
  },
  "luminance": 0.06756
}

Semantic roles & 50–950 ramp

primary

#403C9D

secondary

#B7BA7B

accent

#D453CF

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403C9D

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

Preview Lab → · Contrast checker → · Palette generator →