#40438D#40438D

#40438D is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.1% C 0.120 H 278.1°. Best body text is #FFFFFF at 8.73:1 contrast (WCAG AA passes).

Color values

HEX	#40438D
RGB	rgb(64, 67, 141)
HSL	hsl(238, 38%, 40%)
HSV	hsv(238, 55%, 55%)
CMYK	cmyk(54.6%, 52.5%, 0%, 44.7%)
CIE-LAB	lab(31.87, 20.96, -41.68)
CIE-LCH	lch(31.87, 46.65, 296.70°)
OKLab	oklab(42.09% 0.017 -0.119)
OKLCH	oklch(42.09% 0.12 278.1)
XYZ	xyz(8.9277, 7.0268, 26.0800)
Luminance	0.0703 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40438D #8D8A40

analogous

#406A8D #40438D #63408D

triadic

#40438D #8D4043 #438D40

tetradic

#40438D #8D406A #8D8A40 #408D63

square

#40438D #8D406A #8D8A40 #408D63

split-complementary

#40438D #8D6340 #6A8D40

monochromatic

#1A1B39 #2D2F63 #40438D #575BB3 #8184C6

Accessibility & contrast

On white

8.73

#40438D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#40438D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40438D

8.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40438D	#FFFFFF	#000000	##FFFFFF
##40438D	1.00	8.73	2.41	8.73
#FFFFFF	8.73	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4E90

Deuteranopia (green-blind)

#13488B

Tritanopia (blue-blind)

#1D5361

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #40438d;
/* rgb */ color: rgb(64, 67, 141);
/* oklch */ color: oklch(42.1% 0.120 278.1);

Tailwind

colors: {
  custom: {
    50: '#7b77af',
    500: '#40438d',
    950: '#000000',
  },
}

SCSS

$custom: #40438d;
$custom-light: #7b77af;
$custom-dark: #000000;

JSON

{
  "hex": "#40438d",
  "rgb": {
    "r": 64,
    "g": 67,
    "b": 141
  },
  "hsl": {
    "h": 237.662,
    "s": 37.561,
    "l": 40.196
  },
  "oklch": {
    "l": 0.42088,
    "c": 0.12018,
    "h": 278.1
  },
  "luminance": 0.07027
}

Semantic roles & 50–950 ramp

primary

#40438D

secondary

#B0AE78

accent

#C95ACE

background

#F7F7FA

surface

#EEEDF4

border

#C9C8CE

text

#0A0810

muted

#7C7B7F

Preview Lab

Preview with #40438D

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

Preview Lab → · Contrast checker → · Palette generator →