#403B71#403B71

#403B71 is a dark, moderate blue. Relative luminance 0.054; OKLCH L 38.5% C 0.090 H 285.6°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#403B71
RGB	rgb(64, 59, 113)
HSL	hsl(246, 31%, 34%)
HSV	hsv(246, 48%, 44%)
CMYK	cmyk(43.4%, 47.8%, 0%, 55.7%)
CIE-LAB	lab(27.87, 17.01, -30.58)
CIE-LCH	lch(27.87, 34.99, 299.08°)
OKLab	oklab(38.49% 0.0241 -0.0865)
OKLCH	oklch(38.49% 0.09 285.6)
XYZ	xyz(6.6581, 5.4099, 16.3130)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B71 #6C713B

analogous

#3B5171 #403B71 #5B3B71

triadic

#403B71 #71403B #3B7140

tetradic

#403B71 #713B51 #6C713B #3B715B

square

#403B71 #713B51 #6C713B #3B715B

split-complementary

#403B71 #715B3B #51713B

monochromatic

#121121 #292649 #403B71 #575099 #7871B5

Accessibility & contrast

On white

10.09

#403B71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#403B71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B71

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B71	#FFFFFF	#000000	##FFFFFF
##403B71	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#274373

Deuteranopia (green-blind)

#254070

Tritanopia (blue-blind)

#324650

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #403b71;
/* rgb */ color: rgb(64, 59, 113);
/* oklch */ color: oklch(38.5% 0.090 285.6);

Tailwind

colors: {
  custom: {
    50: '#78719a',
    500: '#403b71',
    950: '#000000',
  },
}

SCSS

$custom: #403b71;
$custom-light: #78719a;
$custom-dark: #000000;

JSON

{
  "hex": "#403b71",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 113
  },
  "hsl": {
    "h": 245.556,
    "s": 31.395,
    "l": 33.725
  },
  "oklch": {
    "l": 0.38493,
    "c": 0.08977,
    "h": 285.6
  },
  "luminance": 0.0541
}

Semantic roles & 50–950 ramp

primary

#403B71

secondary

#9A9F69

accent

#C860BE

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #403B71

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

Preview Lab → · Contrast checker → · Palette generator →