#40388E#40388E

#40388E is a dark, vivid blue. Relative luminance 0.059; OKLCH L 40.0% C 0.137 H 282.4°. Best body text is #FFFFFF at 9.66:1 contrast (WCAG AA passes).

Color values

HEX	#40388E
RGB	rgb(64, 56, 142)
HSL	hsl(246, 43%, 39%)
HSV	hsv(246, 61%, 56%)
CMYK	cmyk(54.9%, 60.6%, 0%, 44.3%)
CIE-LAB	lab(29.08, 28.47, -46.79)
CIE-LCH	lch(29.08, 54.77, 301.32°)
OKLab	oklab(40.04% 0.0296 -0.1341)
OKLCH	oklch(40.04% 0.137 282.4)
XYZ	xyz(8.4095, 5.8708, 26.2760)
Luminance	0.0587 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40388E #868E38

analogous

#385B8E #40388E #6B388E

triadic

#40388E #8E4038 #388E40

tetradic

#40388E #8E385B #868E38 #388E6B

square

#40388E #8E385B #868E38 #388E6B

split-complementary

#40388E #8E6B38 #5B8E38

monochromatic

#181536 #2C2762 #40388E #554BB8 #7F77C9

Accessibility & contrast

On white

9.66

#40388E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.17

#40388E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40388E

9.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40388E	#FFFFFF	#000000	##FFFFFF
##40388E	1.00	9.66	2.17	9.66
#FFFFFF	9.66	1.00	21.00	1.00
#000000	2.17	21.00	1.00	21.00
##FFFFFF	9.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004791

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#1E4C5D

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #40388e;
/* rgb */ color: rgb(64, 56, 142);
/* oklch */ color: oklch(40.0% 0.137 282.4);

Tailwind

colors: {
  custom: {
    50: '#7c6fb0',
    500: '#40388e',
    950: '#000000',
  },
}

SCSS

$custom: #40388e;
$custom-light: #7c6fb0;
$custom-dark: #000000;

JSON

{
  "hex": "#40388e",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 142
  },
  "hsl": {
    "h": 245.581,
    "s": 43.434,
    "l": 38.824
  },
  "oklch": {
    "l": 0.40038,
    "c": 0.13732,
    "h": 282.4
  },
  "luminance": 0.05871
}

Semantic roles & 50–950 ramp

primary

#40388E

secondary

#ACB26F

accent

#D355C7

background

#F7F6FA

surface

#EEECF5

border

#C9C7CF

text

#0A0710

muted

#7C7A7F

Preview Lab

Preview with #40388E

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

Preview Lab → · Contrast checker → · Palette generator →