#2440BC#2440BC

#2440BC is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.196 H 267.2°. Best body text is #FFFFFF at 8.29:1 contrast (WCAG AA passes).

Color values

HEX	#2440BC
RGB	rgb(36, 64, 188)
HSL	hsl(229, 68%, 44%)
HSV	hsv(229, 81%, 74%)
CMYK	cmyk(80.9%, 66%, 0%, 26.3%)
CIE-LAB	lab(33.29, 35.81, -67.69)
CIE-LCH	lch(33.29, 76.58, 297.88°)
OKLab	oklab(43.9% -0.0095 -0.196)
OKLCH	oklch(43.9% 0.196 267.2)
XYZ	xyz(11.6349, 7.6713, 48.4347)
Luminance	0.0767 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.07

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2440BC #BCA024

analogous

#248CBC #2440BC #5424BC

triadic

#2440BC #BC2440 #40BC24

tetradic

#2440BC #BC248C #BCA024 #24BC54

square

#2440BC #BC248C #BCA024 #24BC54

split-complementary

#2440BC #BC5424 #8CBC24

monochromatic

#101D55 #1A2F89 #2440BC #425EDB #768AE5

Accessibility & contrast

On white

8.29

#2440BC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2440BC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2440BC

8.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2440BC	#FFFFFF	#000000	##FFFFFF
##2440BC	1.00	8.29	2.53	8.29
#FFFFFF	8.29	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#0047BA

Tritanopia (blue-blind)

#006178

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2440bc;
/* rgb */ color: rgb(36, 64, 188);
/* oklch */ color: oklch(43.9% 0.196 267.2);

Tailwind

colors: {
  custom: {
    50: '#7a74d1',
    500: '#2440bc',
    950: '#000000',
  },
}

SCSS

$custom: #2440bc;
$custom-light: #7a74d1;
$custom-dark: #000000;

JSON

{
  "hex": "#2440bc",
  "rgb": {
    "r": 36,
    "g": 64,
    "b": 188
  },
  "hsl": {
    "h": 228.947,
    "s": 67.857,
    "l": 43.922
  },
  "oklch": {
    "l": 0.43896,
    "c": 0.19627,
    "h": 267.2
  },
  "luminance": 0.07673
}

Semantic roles & 50–950 ramp

primary

#2440BC

secondary

#CCBB70

accent

#CB3DEB

background

#F8F7FD

surface

#EFEDFA

border

#CAC8D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #2440BC

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

Preview Lab → · Contrast checker → · Palette generator →