#40338D#40338D

#40338D is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.1% C 0.143 H 284.2°. Best body text is #FFFFFF at 10.11:1 contrast (WCAG AA passes).

Color values

HEX	#40338D
RGB	rgb(64, 51, 141)
HSL	hsl(249, 47%, 38%)
HSV	hsv(249, 64%, 55%)
CMYK	cmyk(54.6%, 63.8%, 0%, 44.7%)
CIE-LAB	lab(27.79, 31.31, -48.27)
CIE-LCH	lch(27.79, 57.53, 302.97°)
OKLab	oklab(39.07% 0.035 -0.1385)
OKLCH	oklch(39.07% 0.143 284.2)
XYZ	xyz(8.1044, 5.3803, 25.8056)
Luminance	0.0538 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40338D #808D33

analogous

#33538D #40338D #6D338D

triadic

#40338D #8D4033 #338D40

tetradic

#40338D #8D3353 #808D33 #338D6D

square

#40338D #8D3353 #808D33 #338D6D

split-complementary

#40338D #8D6D33 #538D33

monochromatic

#171233 #2C2360 #40338D #5443BA #7D6FCB

Accessibility & contrast

On white

10.11

#40338D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.08

#40338D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40338D

10.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40338D	#FFFFFF	#000000	##FFFFFF
##40338D	1.00	10.11	2.08	10.11
#FFFFFF	10.11	1.00	21.00	1.00
#000000	2.08	21.00	1.00	21.00
##FFFFFF	10.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004490

Deuteranopia (green-blind)

#003F8B

Tritanopia (blue-blind)

#20495B

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #40338d;
/* rgb */ color: rgb(64, 51, 141);
/* oklch */ color: oklch(39.1% 0.143 284.2);

Tailwind

colors: {
  custom: {
    50: '#7c6baf',
    500: '#40338d',
    950: '#000000',
  },
}

SCSS

$custom: #40338d;
$custom-light: #7c6baf;
$custom-dark: #000000;

JSON

{
  "hex": "#40338d",
  "rgb": {
    "r": 64,
    "g": 51,
    "b": 141
  },
  "hsl": {
    "h": 248.667,
    "s": 46.875,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39066,
    "c": 0.14282,
    "h": 284.2
  },
  "luminance": 0.05381
}

Semantic roles & 50–950 ramp

primary

#40338D

secondary

#A8B369

accent

#D751C3

background

#F7F6FA

surface

#EEEBF5

border

#C9C6CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40338D

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

Preview Lab → · Contrast checker → · Palette generator →