#40499C#40499C

#40499C is a dark, vivid blue. Relative luminance 0.083; OKLCH L 44.4% C 0.134 H 274.9°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#40499C
RGB	rgb(64, 73, 156)
HSL	hsl(234, 42%, 43%)
HSV	hsv(234, 59%, 61%)
CMYK	cmyk(59%, 53.2%, 0%, 38.8%)
CIE-LAB	lab(34.51, 22.18, -46.56)
CIE-LCH	lch(34.51, 51.57, 295.47°)
OKLab	oklab(44.4% 0.0115 -0.1333)
OKLCH	oklch(44.4% 0.134 274.9)
XYZ	xyz(10.4957, 8.2546, 32.4863)
Luminance	0.0825 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40499C #9C9340

analogous

#40779C #40499C #65409C

triadic

#40499C #9C4049 #499C40

tetradic

#40499C #9C4077 #9C9340 #409C65

square

#40499C #9C4077 #9C9340 #409C65

split-complementary

#40499C #9C6540 #779C40

monochromatic

#1C2045 #2E3571 #40499C #5D66BC #888FCE

Accessibility & contrast

On white

7.92

#40499C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#40499C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40499C

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40499C	#FFFFFF	#000000	##FFFFFF
##40499C	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#19559F

Deuteranopia (green-blind)

#014D9A

Tritanopia (blue-blind)

#005C6B

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #40499c;
/* rgb */ color: rgb(64, 73, 156);
/* oklch */ color: oklch(44.4% 0.134 274.9);

Tailwind

colors: {
  custom: {
    50: '#7d7bba',
    500: '#40499c',
    950: '#000000',
  },
}

SCSS

$custom: #40499c;
$custom-light: #7d7bba;
$custom-dark: #000000;

JSON

{
  "hex": "#40499c",
  "rgb": {
    "r": 64,
    "g": 73,
    "b": 156
  },
  "hsl": {
    "h": 234.13,
    "s": 41.818,
    "l": 43.137
  },
  "oklch": {
    "l": 0.444,
    "c": 0.13377,
    "h": 274.9
  },
  "luminance": 0.08255
}

Semantic roles & 50–950 ramp

primary

#40499C

secondary

#B9B37F

accent

#C656D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0A0912

muted

#7C7B81

Preview Lab

Preview with #40499C

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

Preview Lab → · Contrast checker → · Palette generator →