#2D40B4#2D40B4

#2D40B4 is a dark, vivid blue. Relative luminance 0.075; OKLCH L 43.5% C 0.184 H 269.6°. Best body text is #FFFFFF at 8.39:1 contrast (WCAG AA passes).

Color values

HEX	#2D40B4
RGB	rgb(45, 64, 180)
HSL	hsl(232, 60%, 44%)
HSV	hsv(232, 75%, 71%)
CMYK	cmyk(75%, 64.4%, 0%, 29.4%)
CIE-LAB	lab(32.96, 33.74, -63.49)
CIE-LCH	lch(32.96, 71.90, 297.99°)
OKLab	oklab(43.54% -0.0012 -0.1836)
OKLCH	oklch(43.54% 0.184 269.6)
XYZ	xyz(11.1510, 7.5188, 44.0348)
Luminance	0.0752 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40B4 #B4A12D

analogous

#2D84B4 #2D40B4 #5E2DB4

triadic

#2D40B4 #B42D40 #40B42D

tetradic

#2D40B4 #B42D84 #B4A12D #2DB45E

square

#2D40B4 #B42D84 #B4A12D #2DB45E

split-complementary

#2D40B4 #B45E2D #84B42D

monochromatic

#151D52 #212F83 #2D40B4 #4C5FD2 #7D8BDE

Accessibility & contrast

On white

8.39

#2D40B4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.50

#2D40B4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40B4

8.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40B4	#FFFFFF	#000000	##FFFFFF
##2D40B4	1.00	8.39	2.50	8.39
#FFFFFF	8.39	1.00	21.00	1.00
#000000	2.50	21.00	1.00	21.00
##FFFFFF	8.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054B8

Deuteranopia (green-blind)

#0047B2

Tritanopia (blue-blind)

#005E74

Achromatopsia (no color)

#4E4E4E

Design tokens & code

CSS

--color: #2d40b4;
/* rgb */ color: rgb(45, 64, 180);
/* oklch */ color: oklch(43.5% 0.184 269.6);

Tailwind

colors: {
  custom: {
    50: '#7a74cb',
    500: '#2d40b4',
    950: '#000000',
  },
}

SCSS

$custom: #2d40b4;
$custom-light: #7a74cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40b4",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 180
  },
  "hsl": {
    "h": 231.556,
    "s": 60,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43543,
    "c": 0.18357,
    "h": 269.6
  },
  "luminance": 0.0752
}

Semantic roles & 50–950 ramp

primary

#2D40B4

secondary

#C7BC76

accent

#CD45E3

background

#F8F7FC

surface

#EFEDF9

border

#CAC8D2

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2D40B4

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

Preview Lab → · Contrast checker → · Palette generator →