#2440A4#2440A4

#2440A4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.7% C 0.165 H 266.8°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#2440A4
RGB	rgb(36, 64, 164)
HSL	hsl(227, 64%, 39%)
HSV	hsv(227, 78%, 64%)
CMYK	cmyk(78%, 61%, 0%, 35.7%)
CIE-LAB	lab(31.16, 26.77, -56.88)
CIE-LCH	lch(31.16, 62.87, 295.21°)
OKLab	oklab(41.67% -0.0091 -0.1644)
OKLCH	oklch(41.67% 0.165 266.8)
XYZ	xyz(9.2594, 6.7212, 35.9241)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2440A4 #A48824

analogous

#2480A4 #2440A4 #4824A4

triadic

#2440A4 #A42440 #40A424

tetradic

#2440A4 #A42480 #A48824 #24A448

square

#2440A4 #A42480 #A48824 #24A448

split-complementary

#2440A4 #A44824 #80A424

monochromatic

#0E1940 #192C72 #2440A4 #3356D2 #657FDD

Accessibility & contrast

On white

8.96

#2440A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#2440A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2440A4

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2440A4	#FFFFFF	#000000	##FFFFFF
##2440A4	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#005A6B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2440a4;
/* rgb */ color: rgb(36, 64, 164);
/* oklch */ color: oklch(41.7% 0.165 266.8);

Tailwind

colors: {
  custom: {
    50: '#7474c0',
    500: '#2440a4',
    950: '#000000',
  },
}

SCSS

$custom: #2440a4;
$custom-light: #7474c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2440a4",
  "rgb": {
    "r": 36,
    "g": 64,
    "b": 164
  },
  "hsl": {
    "h": 226.875,
    "s": 64,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41674,
    "c": 0.16464,
    "h": 266.8
  },
  "luminance": 0.06722
}

Semantic roles & 50–950 ramp

primary

#2440A4

secondary

#C3AD61

accent

#C341E7

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #2440A4

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

Preview Lab → · Contrast checker → · Palette generator →