#40459F#40459F

#40459F is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.144 H 276.3°. Best body text is #FFFFFF at 8.17:1 contrast (WCAG AA passes).

Color values

HEX	#40459F
RGB	rgb(64, 69, 159)
HSL	hsl(237, 43%, 44%)
HSV	hsv(237, 60%, 62%)
CMYK	cmyk(59.7%, 56.6%, 0%, 37.6%)
CIE-LAB	lab(33.67, 25.82, -49.73)
CIE-LCH	lch(33.67, 56.04, 297.44°)
OKLab	oklab(43.84% 0.0158 -0.1426)
OKLCH	oklch(43.84% 0.144 276.3)
XYZ	xyz(10.4985, 7.8487, 33.7559)
Luminance	0.0785 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40459F #9F9A40

analogous

#40749F #40459F #6A409F

triadic

#40459F #9F4045 #459F40

tetradic

#40459F #9F4074 #9F9A40 #409F6A

square

#40459F #9F4074 #9F9A40 #409F6A

split-complementary

#40459F #9F6A40 #749F40

monochromatic

#1D1F48 #2E3273 #40459F #5E63BE #8A8DD0

Accessibility & contrast

On white

8.17

#40459F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.57

#40459F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40459F

8.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40459F	#FFFFFF	#000000	##FFFFFF
##40459F	1.00	8.17	2.57	8.17
#FFFFFF	8.17	1.00	21.00	1.00
#000000	2.57	21.00	1.00	21.00
##FFFFFF	8.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053A2

Deuteranopia (green-blind)

#004B9D

Tritanopia (blue-blind)

#005A6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #40459f;
/* rgb */ color: rgb(64, 69, 159);
/* oklch */ color: oklch(43.8% 0.144 276.3);

Tailwind

colors: {
  custom: {
    50: '#7e78bc',
    500: '#40459f',
    950: '#000000',
  },
}

SCSS

$custom: #40459f;
$custom-light: #7e78bc;
$custom-dark: #000000;

JSON

{
  "hex": "#40459f",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 159
  },
  "hsl": {
    "h": 236.842,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43838,
    "c": 0.14352,
    "h": 276.3
  },
  "luminance": 0.07849
}

Semantic roles & 50–950 ramp

primary

#40459F

secondary

#BBB780

accent

#CC55D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #40459F

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

Preview Lab → · Contrast checker → · Palette generator →