#40389F#40389F

#40389F is a dark, vivid blue. Relative luminance 0.064; OKLCH L 41.5% C 0.161 H 280.2°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX	#40389F
RGB	rgb(64, 56, 159)
HSL	hsl(245, 48%, 42%)
HSV	hsv(245, 65%, 62%)
CMYK	cmyk(59.7%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(30.45, 34.12, -54.95)
CIE-LCH	lch(30.45, 64.68, 301.83°)
OKLab	oklab(41.47% 0.0286 -0.1581)
OKLCH	oklch(41.47% 0.161 280.2)
XYZ	xyz(9.7846, 6.4209, 33.5179)
Luminance	0.0642 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40389F #979F38

analogous

#38649F #40389F #74389F

triadic

#40389F #9F4038 #389F40

tetradic

#40389F #9F3864 #979F38 #389F74

square

#40389F #9F3864 #979F38 #389F74

split-complementary

#40389F #9F7438 #649F38

monochromatic

#1C1844 #2E2872 #40389F #5B52C2 #867FD2

Accessibility & contrast

On white

9.19

#40389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#40389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40389F

9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40389F	#FFFFFF	#000000	##FFFFFF
##40389F	1.00	9.19	2.28	9.19
#FFFFFF	9.19	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004CA2

Deuteranopia (green-blind)

#00449D

Tritanopia (blue-blind)

#005266

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #40389f;
/* rgb */ color: rgb(64, 56, 159);
/* oklch */ color: oklch(41.5% 0.161 280.2);

Tailwind

colors: {
  custom: {
    50: '#7f6fbc',
    500: '#40389f',
    950: '#000000',
  },
}

SCSS

$custom: #40389f;
$custom-light: #7f6fbc;
$custom-dark: #000000;

JSON

{
  "hex": "#40389f",
  "rgb": {
    "r": 64,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 244.66,
    "s": 47.907,
    "l": 42.157
  },
  "oklch": {
    "l": 0.41467,
    "c": 0.16066,
    "h": 280.2
  },
  "luminance": 0.06422
}

Semantic roles & 50–950 ramp

primary

#40389F

secondary

#B6BB77

accent

#D750CD

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #40389F

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

Preview Lab → · Contrast checker → · Palette generator →