#40518F#40518F

#40518F is a mid, moderate blue. Relative luminance 0.090; OKLCH L 45.2% C 0.103 H 270.3°. Best body text is #FFFFFF at 7.52:1 contrast (WCAG AA passes).

Color values

HEX	#40518F
RGB	rgb(64, 81, 143)
HSL	hsl(227, 38%, 41%)
HSV	hsv(227, 55%, 56%)
CMYK	cmyk(55.2%, 43.4%, 0%, 43.9%)
CIE-LAB	lab(35.90, 12.43, -36.45)
CIE-LCH	lch(35.90, 38.51, 288.83°)
OKLab	oklab(45.19% 0.0005 -0.1035)
OKLCH	oklch(45.19% 0.103 270.3)
XYZ	xyz(10.0131, 8.9573, 27.1826)
Luminance	0.0896 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40518F #8F7E40

analogous

#40788F #40518F #57408F

triadic

#40518F #8F4051 #518F40

tetradic

#40518F #8F4078 #8F7E40 #408F57

square

#40518F #8F4078 #8F7E40 #408F57

split-complementary

#40518F #8F5740 #788F40

monochromatic

#1A213A #2D3965 #40518F #586CB4 #8291C7

Accessibility & contrast

On white

7.52

#40518F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.79

#40518F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40518F

7.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40518F	#FFFFFF	#000000	##FFFFFF
##40518F	1.00	7.52	2.79	7.52
#FFFFFF	7.52	1.00	21.00	1.00
#000000	2.79	21.00	1.00	21.00
##FFFFFF	7.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#375891

Deuteranopia (green-blind)

#2E518E

Tritanopia (blue-blind)

#185E69

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #40518f;
/* rgb */ color: rgb(64, 81, 143);
/* oklch */ color: oklch(45.2% 0.103 270.3);

Tailwind

colors: {
  custom: {
    50: '#7b81b0',
    500: '#40518f',
    950: '#000000',
  },
}

SCSS

$custom: #40518f;
$custom-light: #7b81b0;
$custom-dark: #000000;

JSON

{
  "hex": "#40518f",
  "rgb": {
    "r": 64,
    "g": 81,
    "b": 143
  },
  "hsl": {
    "h": 227.089,
    "s": 38.164,
    "l": 40.588
  },
  "oklch": {
    "l": 0.45193,
    "c": 0.10349,
    "h": 270.3
  },
  "luminance": 0.08958
}

Semantic roles & 50–950 ramp

primary

#40518F

secondary

#B2A579

accent

#B55ACE

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #40518F

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

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