#40509D#40509D

#40509D is a mid, vivid blue. Relative luminance 0.093; OKLCH L 45.9% C 0.126 H 271.8°. Best body text is #FFFFFF at 7.36:1 contrast (WCAG AA passes).

Color values

HEX	#40509D
RGB	rgb(64, 80, 157)
HSL	hsl(230, 42%, 43%)
HSV	hsv(230, 59%, 62%)
CMYK	cmyk(59.2%, 49%, 0%, 38.4%)
CIE-LAB	lab(36.48, 17.94, -43.99)
CIE-LCH	lch(36.48, 47.51, 292.19°)
OKLab	oklab(45.91% 0.0039 -0.1256)
OKLCH	oklch(45.91% 0.126 271.8)
XYZ	xyz(11.0668, 9.2608, 33.0961)
Luminance	0.0926 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40509D #9D8D40

analogous

#407E9D #40509D #5E409D

triadic

#40509D #9D4050 #509D40

tetradic

#40509D #9D407E #9D8D40 #409D5E

square

#40509D #9D407E #9D8D40 #409D5E

split-complementary

#40509D #9D5E40 #7E9D40

monochromatic

#1D2446 #2E3A72 #40509D #5D6EBD #8995CF

Accessibility & contrast

On white

7.36

#40509D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.85

#40509D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40509D

7.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40509D	#FFFFFF	#000000	##FFFFFF
##40509D	1.00	7.36	2.85	7.36
#FFFFFF	7.36	1.00	21.00	1.00
#000000	2.85	21.00	1.00	21.00
##FFFFFF	7.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A5AA0

Deuteranopia (green-blind)

#1B529B

Tritanopia (blue-blind)

#00616F

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #40509d;
/* rgb */ color: rgb(64, 80, 157);
/* oklch */ color: oklch(45.9% 0.126 271.8);

Tailwind

colors: {
  custom: {
    50: '#7d80ba',
    500: '#40509d',
    950: '#000000',
  },
}

SCSS

$custom: #40509d;
$custom-light: #7d80ba;
$custom-dark: #000000;

JSON

{
  "hex": "#40509d",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 157
  },
  "hsl": {
    "h": 229.677,
    "s": 42.081,
    "l": 43.333
  },
  "oklch": {
    "l": 0.45913,
    "c": 0.1257,
    "h": 271.8
  },
  "luminance": 0.09262
}

Semantic roles & 50–950 ramp

primary

#40509D

secondary

#B9AF7F

accent

#BD56D2

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A12

muted

#7C7C81

Preview Lab

Preview with #40509D

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

Preview Lab → · Contrast checker → · Palette generator →