#2A40A4#2A40A4

#2A40A4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.163 H 268.7°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2A40A4
RGB	rgb(42, 64, 164)
HSL	hsl(229, 59%, 40%)
HSV	hsv(229, 74%, 64%)
CMYK	cmyk(74.4%, 61%, 0%, 35.7%)
CIE-LAB	lab(31.44, 27.47, -56.43)
CIE-LCH	lch(31.44, 62.76, 295.96°)
OKLab	oklab(41.95% -0.0036 -0.1629)
OKLCH	oklch(41.95% 0.163 268.7)
XYZ	xyz(9.4868, 6.8384, 35.9347)
Luminance	0.0684 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A40A4 #A48E2A

analogous

#2A7DA4 #2A40A4 #512AA4

triadic

#2A40A4 #A42A40 #40A42A

tetradic

#2A40A4 #A42A7D #A48E2A #2AA451

square

#2A40A4 #A42A7D #A48E2A #2AA451

split-complementary

#2A40A4 #A4512A #7DA42A

monochromatic

#111A43 #1E2D73 #2A40A4 #3E58CD #6E82DA

Accessibility & contrast

On white

8.87

#2A40A4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2A40A4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A40A4

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A40A4	#FFFFFF	#000000	##FFFFFF
##2A40A4	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)

#0050A7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2a40a4;
/* rgb */ color: rgb(42, 64, 164);
/* oklch */ color: oklch(42.0% 0.163 268.7);

Tailwind

colors: {
  custom: {
    50: '#7674c0',
    500: '#2a40a4',
    950: '#000000',
  },
}

SCSS

$custom: #2a40a4;
$custom-light: #7674c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a40a4",
  "rgb": {
    "r": 42,
    "g": 64,
    "b": 164
  },
  "hsl": {
    "h": 229.18,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41951,
    "c": 0.16297,
    "h": 268.7
  },
  "luminance": 0.06839
}

Semantic roles & 50–950 ramp

primary

#2A40A4

secondary

#C1B169

accent

#C645E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2A40A4

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

Preview Lab → · Contrast checker → · Palette generator →