#403689#403689

#403689 is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.3% C 0.133 H 283.9°. Best body text is #FFFFFF at 9.97:1 contrast (WCAG AA passes).

Color values

HEX	#403689
RGB	rgb(64, 54, 137)
HSL	hsl(247, 43%, 37%)
HSV	hsv(247, 61%, 54%)
CMYK	cmyk(53.3%, 60.6%, 0%, 46.3%)
CIE-LAB	lab(28.20, 28.10, -45.12)
CIE-LCH	lch(28.20, 53.15, 301.92°)
OKLab	oklab(39.27% 0.032 -0.1292)
OKLCH	oklch(39.27% 0.133 283.9)
XYZ	xyz(7.9475, 5.5340, 24.3115)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403689 #7F8936

analogous

#365689 #403689 #6A3689

triadic

#403689 #894036 #368940

tetradic

#403689 #893656 #7F8936 #36896A

square

#403689 #893656 #7F8936 #36896A

split-complementary

#403689 #896A36 #568936

monochromatic

#171331 #2B255D #403689 #5547B5 #7C72C7

Accessibility & contrast

On white

9.97

#403689 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#403689 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403689

9.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403689	#FFFFFF	#000000	##FFFFFF
##403689	1.00	9.97	2.11	9.97
#FFFFFF	9.97	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00458C

Deuteranopia (green-blind)

#004087

Tritanopia (blue-blind)

#23495A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #403689;
/* rgb */ color: rgb(64, 54, 137);
/* oklch */ color: oklch(39.3% 0.133 283.9);

Tailwind

colors: {
  custom: {
    50: '#7b6dac',
    500: '#403689',
    950: '#000000',
  },
}

SCSS

$custom: #403689;
$custom-light: #7b6dac;
$custom-dark: #000000;

JSON

{
  "hex": "#403689",
  "rgb": {
    "r": 64,
    "g": 54,
    "b": 137
  },
  "hsl": {
    "h": 247.229,
    "s": 43.455,
    "l": 37.451
  },
  "oklch": {
    "l": 0.3927,
    "c": 0.13308,
    "h": 283.9
  },
  "luminance": 0.05534
}

Semantic roles & 50–950 ramp

primary

#403689

secondary

#A8B06B

accent

#D355C4

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #403689

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

Preview Lab → · Contrast checker → · Palette generator →