#40529B#40529B

#40529B is a mid, vivid blue. Relative luminance 0.095; OKLCH L 46.2% C 0.120 H 270.7°. Best body text is #FFFFFF at 7.25:1 contrast (WCAG AA passes).

Color values

HEX	#40529B
RGB	rgb(64, 82, 155)
HSL	hsl(228, 42%, 43%)
HSV	hsv(228, 59%, 61%)
CMYK	cmyk(58.7%, 47.1%, 0%, 39.2%)
CIE-LAB	lab(36.91, 15.93, -42.10)
CIE-LCH	lch(36.91, 45.01, 290.73°)
OKLab	oklab(46.2% 0.0014 -0.12)
OKLCH	oklch(46.2% 0.12 270.7)
XYZ	xyz(11.0461, 9.4903, 32.2537)
Luminance	0.0949 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40529B #9B8940

analogous

#407F9B #40529B #5B409B

triadic

#40529B #9B4052 #529B40

tetradic

#40529B #9B407F #9B8940 #409B5B

square

#40529B #9B407F #9B8940 #409B5B

split-complementary

#40529B #9B5B40 #7F9B40

monochromatic

#1C2444 #2E3B70 #40529B #5C6FBC #8896CE

Accessibility & contrast

On white

7.25

#40529B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#40529B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40529B

7.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40529B	#FFFFFF	#000000	##FFFFFF
##40529B	1.00	7.25	2.90	7.25
#FFFFFF	7.25	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#305B9E

Deuteranopia (green-blind)

#235399

Tritanopia (blue-blind)

#00626F

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #40529b;
/* rgb */ color: rgb(64, 82, 155);
/* oklch */ color: oklch(46.2% 0.120 270.7);

Tailwind

colors: {
  custom: {
    50: '#7d82b9',
    500: '#40529b',
    950: '#000000',
  },
}

SCSS

$custom: #40529b;
$custom-light: #7d82b9;
$custom-dark: #000000;

JSON

{
  "hex": "#40529b",
  "rgb": {
    "r": 64,
    "g": 82,
    "b": 155
  },
  "hsl": {
    "h": 228.132,
    "s": 41.553,
    "l": 42.941
  },
  "oklch": {
    "l": 0.462,
    "c": 0.12006,
    "h": 270.7
  },
  "luminance": 0.09491
}

Semantic roles & 50–950 ramp

primary

#40529B

secondary

#B8AD7E

accent

#B956D1

background

#F7F7FB

surface

#EEEEF6

border

#C9C9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #40529B

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

Preview Lab → · Contrast checker → · Palette generator →