#2D40B7#2D40B7

#2D40B7 is a dark, vivid blue. Relative luminance 0.076; OKLCH L 43.8% C 0.187 H 269.6°. Best body text is #FFFFFF at 8.30:1 contrast (WCAG AA passes).

Color values

HEX	#2D40B7
RGB	rgb(45, 64, 183)
HSL	hsl(232, 61%, 45%)
HSV	hsv(232, 75%, 72%)
CMYK	cmyk(75.4%, 65%, 0%, 28.2%)
CIE-LAB	lab(33.23, 34.83, -64.83)
CIE-LCH	lch(33.23, 73.59, 298.25°)
OKLab	oklab(43.82% -0.0013 -0.1875)
OKLCH	oklch(43.82% 0.187 269.6)
XYZ	xyz(11.4599, 7.6423, 45.6617)
Luminance	0.0764 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.73

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40B7 #B7A42D

analogous

#2D85B7 #2D40B7 #5F2DB7

triadic

#2D40B7 #B72D40 #40B72D

tetradic

#2D40B7 #B72D85 #B7A42D #2DB75F

square

#2D40B7 #B72D85 #B7A42D #2DB75F

split-complementary

#2D40B7 #B75F2D #85B72D

monochromatic

#151E55 #212F86 #2D40B7 #4E60D3 #7F8CDF

Accessibility & contrast

On white

8.30

#2D40B7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.53

#2D40B7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40B7

8.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40B7	#FFFFFF	#000000	##FFFFFF
##2D40B7	1.00	8.30	2.53	8.30
#FFFFFF	8.30	1.00	21.00	1.00
#000000	2.53	21.00	1.00	21.00
##FFFFFF	8.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BB

Deuteranopia (green-blind)

#0048B5

Tritanopia (blue-blind)

#005F75

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2d40b7;
/* rgb */ color: rgb(45, 64, 183);
/* oklch */ color: oklch(43.8% 0.187 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b75ce',
    500: '#2d40b7',
    950: '#000000',
  },
}

SCSS

$custom: #2d40b7;
$custom-light: #7b75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40b7",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 183
  },
  "hsl": {
    "h": 231.739,
    "s": 60.526,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4382,
    "c": 0.18749,
    "h": 269.6
  },
  "luminance": 0.07644
}

Semantic roles & 50–950 ramp

primary

#2D40B7

secondary

#C8BD78

accent

#CE44E4

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2D40B7

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

Preview Lab → · Contrast checker → · Palette generator →