#40459E#40459E

#40459E is a dark, vivid blue. Relative luminance 0.078; OKLCH L 43.8% C 0.142 H 276.4°. Best body text is #FFFFFF at 8.19:1 contrast (WCAG AA passes).

Color values

HEX	#40459E
RGB	rgb(64, 69, 158)
HSL	hsl(237, 42%, 44%)
HSV	hsv(237, 59%, 62%)
CMYK	cmyk(59.5%, 56.3%, 0%, 38%)
CIE-LAB	lab(33.59, 25.48, -49.25)
CIE-LCH	lch(33.59, 55.45, 297.36°)
OKLab	oklab(43.76% 0.0158 -0.1412)
OKLCH	oklch(43.76% 0.142 276.4)
XYZ	xyz(10.4120, 7.8141, 33.3007)
Luminance	0.0781 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40459E #9E9940

analogous

#40749E #40459E #6A409E

triadic

#40459E #9E4045 #459E40

tetradic

#40459E #9E4074 #9E9940 #409E6A

square

#40459E #9E4074 #9E9940 #409E6A

split-complementary

#40459E #9E6A40 #749E40

monochromatic

#1D1F47 #2E3272 #40459E #5E63BE #898DCF

Accessibility & contrast

On white

8.19

#40459E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.56

#40459E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40459E

8.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40459E	#FFFFFF	#000000	##FFFFFF
##40459E	1.00	8.19	2.56	8.19
#FFFFFF	8.19	1.00	21.00	1.00
#000000	2.56	21.00	1.00	21.00
##FFFFFF	8.19	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0153A1

Deuteranopia (green-blind)

#004B9C

Tritanopia (blue-blind)

#005A6A

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #40459e;
/* rgb */ color: rgb(64, 69, 158);
/* oklch */ color: oklch(43.8% 0.142 276.4);

Tailwind

colors: {
  custom: {
    50: '#7e78bb',
    500: '#40459e',
    950: '#000000',
  },
}

SCSS

$custom: #40459e;
$custom-light: #7e78bb;
$custom-dark: #000000;

JSON

{
  "hex": "#40459e",
  "rgb": {
    "r": 64,
    "g": 69,
    "b": 158
  },
  "hsl": {
    "h": 236.809,
    "s": 42.342,
    "l": 43.529
  },
  "oklch": {
    "l": 0.4376,
    "c": 0.1421,
    "h": 276.4
  },
  "luminance": 0.07815
}

Semantic roles & 50–950 ramp

primary

#40459E

secondary

#BAB780

accent

#CC56D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #40459E

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

Preview Lab → · Contrast checker → · Palette generator →