#40338E#40338E

#40338E is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.1% C 0.144 H 284.0°. Best body text is #FFFFFF at 10.09:1 contrast (WCAG AA passes).

Color values

HEX	#40338E
RGB	rgb(64, 51, 142)
HSL	hsl(249, 47%, 38%)
HSV	hsv(249, 64%, 56%)
CMYK	cmyk(54.9%, 64.1%, 0%, 44.3%)
CIE-LAB	lab(27.87, 31.64, -48.75)
CIE-LCH	lch(27.87, 58.12, 302.98°)
OKLab	oklab(39.15% 0.035 -0.1399)
OKLCH	oklch(39.15% 0.144 284)
XYZ	xyz(8.1792, 5.4102, 26.1992)
Luminance	0.0541 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40338E #818E33

analogous

#33548E #40338E #6D338E

triadic

#40338E #8E4033 #338E40

tetradic

#40338E #8E3354 #818E33 #338E6D

square

#40338E #8E3354 #818E33 #338E6D

split-complementary

#40338E #8E6D33 #548E33

monochromatic

#171334 #2C2361 #40338E #5443BB #7D70CC

Accessibility & contrast

On white

10.09

#40338E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#40338E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40338E

10.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40338E	#FFFFFF	#000000	##FFFFFF
##40338E	1.00	10.09	2.08	10.09
#FFFFFF	10.09	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004591

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#1F495B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40338e;
/* rgb */ color: rgb(64, 51, 142);
/* oklch */ color: oklch(39.1% 0.144 284.0);

Tailwind

colors: {
  custom: {
    50: '#7c6bb0',
    500: '#40338e',
    950: '#000000',
  },
}

SCSS

$custom: #40338e;
$custom-light: #7c6bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#40338e",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 142
  },
  "hsl": {
    "h": 248.571,
    "s": 47.15,
    "l": 37.843
  },
  "oklch": {
    "l": 0.3915,
    "c": 0.14419,
    "h": 284
  },
  "luminance": 0.05411
}

Semantic roles & 50–950 ramp

primary

#40338E

secondary

#A9B469

accent

#D751C4

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40338E

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

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