#40539A#40539A

#40539A is a mid, moderate blue. Relative luminance 0.096; OKLCH L 46.3% C 0.117 H 270.1°. Best body text is #FFFFFF at 7.19:1 contrast (WCAG AA passes).

Color values

HEX	#40539A
RGB	rgb(64, 83, 154)
HSL	hsl(227, 41%, 43%)
HSV	hsv(227, 58%, 60%)
CMYK	cmyk(58.4%, 46.1%, 0%, 39.6%)
CIE-LAB	lab(37.13, 14.93, -41.14)
CIE-LCH	lch(37.13, 43.77, 289.95°)
OKLab	oklab(46.35% 0.0001 -0.1172)
OKLCH	oklch(46.35% 0.117 270.1)
XYZ	xyz(11.0384, 9.6087, 31.8386)
Luminance	0.0961 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40539A #9A8740

analogous

#40809A #40539A #5A409A

triadic

#40539A #9A4053 #539A40

tetradic

#40539A #9A4080 #9A8740 #409A5A

square

#40539A #9A4080 #9A8740 #409A5A

split-complementary

#40539A #9A5A40 #809A40

monochromatic

#1C2444 #2E3C6F #40539A #5C70BB #8796CD

Accessibility & contrast

On white

7.19

#40539A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.92

#40539A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40539A

7.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40539A	#FFFFFF	#000000	##FFFFFF
##40539A	1.00	7.19	2.92	7.19
#FFFFFF	7.19	1.00	21.00	1.00
#000000	2.92	21.00	1.00	21.00
##FFFFFF	7.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#335C9D

Deuteranopia (green-blind)

#265498

Tritanopia (blue-blind)

#00636F

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #40539a;
/* rgb */ color: rgb(64, 83, 154);
/* oklch */ color: oklch(46.3% 0.117 270.1);

Tailwind

colors: {
  custom: {
    50: '#7c83b8',
    500: '#40539a',
    950: '#000000',
  },
}

SCSS

$custom: #40539a;
$custom-light: #7c83b8;
$custom-dark: #000000;

JSON

{
  "hex": "#40539a",
  "rgb": {
    "r": 64,
    "g": 83,
    "b": 154
  },
  "hsl": {
    "h": 227.333,
    "s": 41.284,
    "l": 42.745
  },
  "oklch": {
    "l": 0.46347,
    "c": 0.11724,
    "h": 270.1
  },
  "luminance": 0.0961
}

Semantic roles & 50–950 ramp

primary

#40539A

secondary

#B8AC7E

accent

#B757D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #40539A

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

Preview Lab → · Contrast checker → · Palette generator →