#2D40A9#2D40A9

#2D40A9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.5% C 0.169 H 269.7°. Best body text is #FFFFFF at 8.69:1 contrast (WCAG AA passes).

Color values

HEX	#2D40A9
RGB	rgb(45, 64, 169)
HSL	hsl(231, 58%, 42%)
HSV	hsv(231, 73%, 66%)
CMYK	cmyk(73.4%, 62.1%, 0%, 33.7%)
CIE-LAB	lab(32.01, 29.70, -58.49)
CIE-LCH	lch(32.01, 65.60, 296.92°)
OKLab	oklab(42.55% -0.0008 -0.1689)
OKLCH	oklch(42.55% 0.169 269.7)
XYZ	xyz(10.0746, 7.0882, 38.3656)
Luminance	0.0709 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40A9 #A9962D

analogous

#2D7EA9 #2D40A9 #582DA9

triadic

#2D40A9 #A92D40 #40A92D

tetradic

#2D40A9 #A92D7E #A9962D #2DA958

square

#2D40A9 #A92D7E #A9962D #2DA958

split-complementary

#2D40A9 #A9582D #7EA92D

monochromatic

#131B48 #202E79 #2D40A9 #465ACE #7685DA

Accessibility & contrast

On white

8.69

#2D40A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2D40A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40A9

8.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40A9	#FFFFFF	#000000	##FFFFFF
##2D40A9	1.00	8.69	2.42	8.69
#FFFFFF	8.69	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.69	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: #2d40a9;
/* rgb */ color: rgb(45, 64, 169);
/* oklch */ color: oklch(42.5% 0.169 269.7);

Tailwind

colors: {
  custom: {
    50: '#7874c3',
    500: '#2d40a9',
    950: '#000000',
  },
}

SCSS

$custom: #2d40a9;
$custom-light: #7874c3;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40a9",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 169
  },
  "hsl": {
    "h": 230.806,
    "s": 57.944,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42546,
    "c": 0.16892,
    "h": 269.7
  },
  "luminance": 0.07089
}

Semantic roles & 50–950 ramp

primary

#2D40A9

secondary

#C2B66F

accent

#C947E1

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2D40A9

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

Preview Lab → · Contrast checker → · Palette generator →