#40508D#40508D

#40508D is a dark, moderate blue. Relative luminance 0.087; OKLCH L 44.8% C 0.102 H 270.8°. Best body text is #FFFFFF at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#40508D
RGB	rgb(64, 80, 141)
HSL	hsl(228, 38%, 40%)
HSV	hsv(228, 55%, 55%)
CMYK	cmyk(54.6%, 43.3%, 0%, 44.7%)
CIE-LAB	lab(35.50, 12.40, -35.87)
CIE-LCH	lch(35.50, 37.95, 289.07°)
OKLab	oklab(44.85% 0.0014 -0.1018)
OKLCH	oklch(44.85% 0.102 270.8)
XYZ	xyz(9.7892, 8.7497, 26.3672)
Luminance	0.0875 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40508D #8D7D40

analogous

#40778D #40508D #56408D

triadic

#40508D #8D4050 #508D40

tetradic

#40508D #8D4077 #8D7D40 #408D56

square

#40508D #8D4077 #8D7D40 #408D56

split-complementary

#40508D #8D5640 #778D40

monochromatic

#1A2039 #2D3863 #40508D #576AB3 #8190C6

Accessibility & contrast

On white

7.64

#40508D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.75

#40508D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40508D

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40508D	#FFFFFF	#000000	##FFFFFF
##40508D	1.00	7.64	2.75	7.64
#FFFFFF	7.64	1.00	21.00	1.00
#000000	2.75	21.00	1.00	21.00
##FFFFFF	7.64	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#37578F

Deuteranopia (green-blind)

#2E508C

Tritanopia (blue-blind)

#1A5D67

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #40508d;
/* rgb */ color: rgb(64, 80, 141);
/* oklch */ color: oklch(44.8% 0.102 270.8);

Tailwind

colors: {
  custom: {
    50: '#7b80af',
    500: '#40508d',
    950: '#000000',
  },
}

SCSS

$custom: #40508d;
$custom-light: #7b80af;
$custom-dark: #000000;

JSON

{
  "hex": "#40508d",
  "rgb": {
    "r": 64,
    "g": 80,
    "b": 141
  },
  "hsl": {
    "h": 227.532,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.44845,
    "c": 0.10182,
    "h": 270.8
  },
  "luminance": 0.0875
}

Semantic roles & 50–950 ramp

primary

#40508D

secondary

#B0A578

accent

#B65ACE

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #40508D

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

Preview Lab → · Contrast checker → · Palette generator →