#2440A7#2440A7

#2440A7 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.9% C 0.169 H 266.9°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2440A7
RGB	rgb(36, 64, 167)
HSL	hsl(227, 65%, 40%)
HSV	hsv(227, 78%, 65%)
CMYK	cmyk(78.4%, 61.7%, 0%, 34.5%)
CIE-LAB	lab(31.42, 27.92, -58.27)
CIE-LCH	lch(31.42, 64.62, 295.60°)
OKLab	oklab(41.94% -0.009 -0.1685)
OKLCH	oklch(41.94% 0.169 266.9)
XYZ	xyz(9.5336, 6.8308, 37.3677)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2440A7 #A78B24

analogous

#2481A7 #2440A7 #4A24A7

triadic

#2440A7 #A72440 #40A724

tetradic

#2440A7 #A72481 #A78B24 #24A74A

square

#2440A7 #A72481 #A78B24 #24A74A

split-complementary

#2440A7 #A74A24 #81A724

monochromatic

#0E1942 #192D75 #2440A7 #3557D3 #6781DE

Accessibility & contrast

On white

8.87

#2440A7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2440A7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2440A7

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2440A7	#FFFFFF	#000000	##FFFFFF
##2440A7	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0044A5

Tritanopia (blue-blind)

#005A6D

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2440a7;
/* rgb */ color: rgb(36, 64, 167);
/* oklch */ color: oklch(41.9% 0.169 266.9);

Tailwind

colors: {
  custom: {
    50: '#7474c2',
    500: '#2440a7',
    950: '#000000',
  },
}

SCSS

$custom: #2440a7;
$custom-light: #7474c2;
$custom-dark: #000000;

JSON

{
  "hex": "#2440a7",
  "rgb": {
    "r": 36,
    "g": 64,
    "b": 167
  },
  "hsl": {
    "h": 227.176,
    "s": 64.532,
    "l": 39.804
  },
  "oklch": {
    "l": 0.41942,
    "c": 0.1687,
    "h": 266.9
  },
  "luminance": 0.06832
}

Semantic roles & 50–950 ramp

primary

#2440A7

secondary

#C4AF63

accent

#C440E8

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2440A7

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

Preview Lab → · Contrast checker → · Palette generator →