#40499F#40499F

#40499F is a dark, vivid blue. Relative luminance 0.084; OKLCH L 44.6% C 0.138 H 274.8°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#40499F
RGB	rgb(64, 73, 159)
HSL	hsl(234, 43%, 44%)
HSV	hsv(234, 60%, 62%)
CMYK	cmyk(59.7%, 54.1%, 0%, 37.6%)
CIE-LAB	lab(34.72, 23.22, -48.03)
CIE-LCH	lch(34.72, 53.35, 295.80°)
OKLab	oklab(44.62% 0.0117 -0.1376)
OKLCH	oklch(44.62% 0.138 274.8)
XYZ	xyz(10.7529, 8.3575, 33.8407)
Luminance	0.0836 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#40499F #9F9640

analogous

#40789F #40499F #66409F

triadic

#40499F #9F4049 #499F40

tetradic

#40499F #9F4078 #9F9640 #409F66

square

#40499F #9F4078 #9F9640 #409F66

split-complementary

#40499F #9F6640 #789F40

monochromatic

#1D2148 #2E3573 #40499F #5E67BE #8A90D0

Accessibility & contrast

On white

7.86

#40499F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#40499F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #40499F

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##40499F	#FFFFFF	#000000	##FFFFFF
##40499F	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1456A2

Deuteranopia (green-blind)

#004E9D

Tritanopia (blue-blind)

#005D6D

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #40499f;
/* rgb */ color: rgb(64, 73, 159);
/* oklch */ color: oklch(44.6% 0.138 274.8);

Tailwind

colors: {
  custom: {
    50: '#7e7bbc',
    500: '#40499f',
    950: '#000000',
  },
}

SCSS

$custom: #40499f;
$custom-light: #7e7bbc;
$custom-dark: #000000;

JSON

{
  "hex": "#40499f",
  "rgb": {
    "r": 64,
    "g": 73,
    "b": 159
  },
  "hsl": {
    "h": 234.316,
    "s": 42.601,
    "l": 43.725
  },
  "oklch": {
    "l": 0.44624,
    "c": 0.1381,
    "h": 274.8
  },
  "luminance": 0.08358
}

Semantic roles & 50–950 ramp

primary

#40499F

secondary

#BBB580

accent

#C755D2

background

#F8F7FB

surface

#EFEDF6

border

#CAC8D0

text

#0B0912

muted

#7C7B81

Preview Lab

Preview with #40499F

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

Preview Lab → · Contrast checker → · Palette generator →