#2D40B8#2D40B8

#2D40B8 is a dark, vivid blue. Relative luminance 0.077; OKLCH L 43.9% C 0.189 H 269.6°. Best body text is #FFFFFF at 8.28:1 contrast (WCAG AA passes).

Color values

HEX	#2D40B8
RGB	rgb(45, 64, 184)
HSL	hsl(232, 61%, 45%)
HSV	hsv(232, 76%, 72%)
CMYK	cmyk(75.5%, 65.2%, 0%, 27.8%)
CIE-LAB	lab(33.32, 35.19, -65.27)
CIE-LCH	lch(33.32, 74.15, 298.33°)
OKLab	oklab(43.91% -0.0014 -0.1888)
OKLCH	oklch(43.91% 0.189 269.6)
XYZ	xyz(11.5643, 7.6841, 46.2118)
Luminance	0.0769 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 5.64

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40B8 #B8A52D

analogous

#2D85B8 #2D40B8 #602DB8

triadic

#2D40B8 #B82D40 #40B82D

tetradic

#2D40B8 #B82D85 #B8A52D #2DB860

square

#2D40B8 #B82D85 #B8A52D #2DB860

split-complementary

#2D40B8 #B8602D #85B82D

monochromatic

#151E56 #212F87 #2D40B8 #4E61D4 #808DE0

Accessibility & contrast

On white

8.28

#2D40B8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.54

#2D40B8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40B8

8.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40B8	#FFFFFF	#000000	##FFFFFF
##2D40B8	1.00	8.28	2.54	8.28
#FFFFFF	8.28	1.00	21.00	1.00
#000000	2.54	21.00	1.00	21.00
##FFFFFF	8.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055BC

Deuteranopia (green-blind)

#0048B6

Tritanopia (blue-blind)

#006076

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2d40b8;
/* rgb */ color: rgb(45, 64, 184);
/* oklch */ color: oklch(43.9% 0.189 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b75ce',
    500: '#2d40b8',
    950: '#000000',
  },
}

SCSS

$custom: #2d40b8;
$custom-light: #7b75ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40b8",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 184
  },
  "hsl": {
    "h": 231.799,
    "s": 60.699,
    "l": 44.902
  },
  "oklch": {
    "l": 0.43913,
    "c": 0.18879,
    "h": 269.6
  },
  "luminance": 0.07685
}

Semantic roles & 50–950 ramp

primary

#2D40B8

secondary

#C9BE78

accent

#CE44E4

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0814

muted

#7C7B82

Preview Lab

Preview with #2D40B8

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

Preview Lab → · Contrast checker → · Palette generator →