#403B8A#403B8A

#403B8A is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.127 H 281.9°. Best body text is #FFFFFF at 9.50:1 contrast (WCAG AA passes).

Color values

HEX	#403B8A
RGB	rgb(64, 59, 138)
HSL	hsl(244, 40%, 39%)
HSV	hsv(244, 57%, 54%)
CMYK	cmyk(53.6%, 57.2%, 0%, 45.9%)
CIE-LAB	lab(29.54, 25.20, -43.57)
CIE-LCH	lch(29.54, 50.33, 300.04°)
OKLab	oklab(40.28% 0.0262 -0.1246)
OKLCH	oklch(40.28% 0.127 281.9)
XYZ	xyz(8.2644, 6.0524, 24.7726)
Luminance	0.0605 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403B8A #858A3B

analogous

#3B5D8A #403B8A #673B8A

triadic

#403B8A #8A403B #3B8A40

tetradic

#403B8A #8A3B5D #858A3B #3B8A67

square

#403B8A #8A3B5D #858A3B #3B8A67

split-complementary

#403B8A #8A673B #5D8A3B

monochromatic

#181634 #2C295F #403B8A #554FB4 #7E79C6

Accessibility & contrast

On white

9.50

#403B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#403B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403B8A

9.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403B8A	#FFFFFF	#000000	##FFFFFF
##403B8A	1.00	9.50	2.21	9.50
#FFFFFF	9.50	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#06488D

Deuteranopia (green-blind)

#004388

Tritanopia (blue-blind)

#214D5C

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #403b8a;
/* rgb */ color: rgb(64, 59, 138);
/* oklch */ color: oklch(40.3% 0.127 281.9);

Tailwind

colors: {
  custom: {
    50: '#7b71ad',
    500: '#403b8a',
    950: '#000000',
  },
}

SCSS

$custom: #403b8a;
$custom-light: #7b71ad;
$custom-dark: #000000;

JSON

{
  "hex": "#403b8a",
  "rgb": {
    "r": 64,
    "g": 59,
    "b": 138
  },
  "hsl": {
    "h": 243.797,
    "s": 40.102,
    "l": 38.627
  },
  "oklch": {
    "l": 0.40284,
    "c": 0.12734,
    "h": 281.9
  },
  "luminance": 0.06053
}

Semantic roles & 50–950 ramp

primary

#403B8A

secondary

#ACAF71

accent

#D058C8

background

#F7F6FA

surface

#EEECF4

border

#C9C7CE

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #403B8A

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

Preview Lab → · Contrast checker → · Palette generator →