#403A71#403A71

#403A71 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.3% C 0.091 H 286.2°. Best body text is #FFFFFF at 10.19:1 contrast (WCAG AA passes).

Color values

HEX	#403A71
RGB	rgb(64, 58, 113)
HSL	hsl(247, 32%, 34%)
HSV	hsv(247, 49%, 44%)
CMYK	cmyk(43.4%, 48.7%, 0%, 55.7%)
CIE-LAB	lab(27.60, 17.68, -31.02)
CIE-LCH	lch(27.60, 35.71, 299.68°)
OKLab	oklab(38.28% 0.0255 -0.0878)
OKLCH	oklch(38.28% 0.091 286.2)
XYZ	xyz(6.6072, 5.3081, 16.2960)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403A71 #6B713A

analogous

#3A4F71 #403A71 #5B3A71

triadic

#403A71 #71403A #3A7140

tetradic

#403A71 #713A4F #6B713A #3A715B

square

#403A71 #713A4F #6B713A #3A715B

split-complementary

#403A71 #715B3A #4F713A

monochromatic

#121020 #292549 #403A71 #574F99 #7770B6

Accessibility & contrast

On white

10.19

#403A71 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#403A71 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403A71

10.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403A71	#FFFFFF	#000000	##FFFFFF
##403A71	1.00	10.19	2.06	10.19
#FFFFFF	10.19	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254373

Deuteranopia (green-blind)

#244070

Tritanopia (blue-blind)

#324550

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #403a71;
/* rgb */ color: rgb(64, 58, 113);
/* oklch */ color: oklch(38.3% 0.091 286.2);

Tailwind

colors: {
  custom: {
    50: '#78709a',
    500: '#403a71',
    950: '#000000',
  },
}

SCSS

$custom: #403a71;
$custom-light: #78709a;
$custom-dark: #000000;

JSON

{
  "hex": "#403a71",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 113
  },
  "hsl": {
    "h": 246.545,
    "s": 32.164,
    "l": 33.529
  },
  "oklch": {
    "l": 0.38284,
    "c": 0.0914,
    "h": 286.2
  },
  "luminance": 0.05308
}

Semantic roles & 50–950 ramp

primary

#403A71

secondary

#999F68

accent

#C85FBD

background

#F7F6F9

surface

#EDECF2

border

#C8C7CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #403A71

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

Preview Lab → · Contrast checker → · Palette generator →