#2E40A9#2E40A9

#2E40A9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.169 H 270.1°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#2E40A9
RGB	rgb(46, 64, 169)
HSL	hsl(231, 57%, 42%)
HSV	hsv(231, 73%, 66%)
CMYK	cmyk(72.8%, 62.1%, 0%, 33.7%)
CIE-LAB	lab(32.06, 29.83, -58.40)
CIE-LCH	lch(32.06, 65.58, 297.05°)
OKLab	oklab(42.6% 0.0002 -0.1686)
OKLCH	oklch(42.6% 0.169 270.1)
XYZ	xyz(10.1191, 7.1112, 38.3677)
Luminance	0.0711 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2E40A9 #A9972E

analogous

#2E7DA9 #2E40A9 #5A2EA9

triadic

#2E40A9 #A92E40 #40A92E

tetradic

#2E40A9 #A92E7D #A9972E #2EA95A

square

#2E40A9 #A92E7D #A9972E #2EA95A

split-complementary

#2E40A9 #A95A2E #7DA92E

monochromatic

#141C49 #212E79 #2E40A9 #475BCD #7786DA

Accessibility & contrast

On white

8.67

#2E40A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2E40A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2E40A9

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2E40A9	#FFFFFF	#000000	##FFFFFF
##2E40A9	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AC

Deuteranopia (green-blind)

#0046A7

Tritanopia (blue-blind)

#005B6E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2e40a9;
/* rgb */ color: rgb(46, 64, 169);
/* oklch */ color: oklch(42.6% 0.169 270.1);

Tailwind

colors: {
  custom: {
    50: '#7874c3',
    500: '#2e40a9',
    950: '#000000',
  },
}

SCSS

$custom: #2e40a9;
$custom-light: #7874c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2e40a9",
  "rgb": {
    "r": 46,
    "g": 64,
    "b": 169
  },
  "hsl": {
    "h": 231.22,
    "s": 57.209,
    "l": 42.157
  },
  "oklch": {
    "l": 0.42598,
    "c": 0.16865,
    "h": 270.1
  },
  "luminance": 0.07112
}

Semantic roles & 50–950 ramp

primary

#2E40A9

secondary

#C2B671

accent

#CA47E0

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2E40A9

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

Preview Lab → · Contrast checker → · Palette generator →