#2440A5#2440A5

#2440A5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.8% C 0.166 H 266.9°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#2440A5
RGB	rgb(36, 64, 165)
HSL	hsl(227, 64%, 39%)
HSV	hsv(227, 78%, 65%)
CMYK	cmyk(78.2%, 61.2%, 0%, 35.3%)
CIE-LAB	lab(31.25, 27.16, -57.35)
CIE-LCH	lch(31.25, 63.45, 295.34°)
OKLab	oklab(41.76% -0.0091 -0.1657)
OKLCH	oklch(41.76% 0.166 266.9)
XYZ	xyz(9.3501, 6.7574, 36.4015)
Luminance	0.0676 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2440A5 #A58924

analogous

#2481A5 #2440A5 #4924A5

triadic

#2440A5 #A52440 #40A524

tetradic

#2440A5 #A52481 #A58924 #24A549

square

#2440A5 #A52481 #A58924 #24A549

split-complementary

#2440A5 #A54924 #81A524

monochromatic

#0E1941 #192D73 #2440A5 #3456D3 #6680DE

Accessibility & contrast

On white

8.93

#2440A5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2440A5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2440A5

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2440A5	#FFFFFF	#000000	##FFFFFF
##2440A5	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A8

Deuteranopia (green-blind)

#0044A3

Tritanopia (blue-blind)

#005A6C

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2440a5;
/* rgb */ color: rgb(36, 64, 165);
/* oklch */ color: oklch(41.8% 0.166 266.9);

Tailwind

colors: {
  custom: {
    50: '#7474c1',
    500: '#2440a5',
    950: '#000000',
  },
}

SCSS

$custom: #2440a5;
$custom-light: #7474c1;
$custom-dark: #000000;

JSON

{
  "hex": "#2440a5",
  "rgb": {
    "r": 36,
    "g": 64,
    "b": 165
  },
  "hsl": {
    "h": 226.977,
    "s": 64.179,
    "l": 39.412
  },
  "oklch": {
    "l": 0.41763,
    "c": 0.166,
    "h": 266.9
  },
  "luminance": 0.06758
}

Semantic roles & 50–950 ramp

primary

#2440A5

secondary

#C3AE62

accent

#C341E7

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2440A5

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

Preview Lab → · Contrast checker → · Palette generator →