#2D40B2#2D40B2

#2D40B2 is a dark, vivid blue. Relative luminance 0.074; OKLCH L 43.4% C 0.181 H 269.7°. Best body text is #FFFFFF at 8.44:1 contrast (WCAG AA passes).

Color values

HEX	#2D40B2
RGB	rgb(45, 64, 178)
HSL	hsl(231, 60%, 44%)
HSV	hsv(231, 75%, 70%)
CMYK	cmyk(74.7%, 64%, 0%, 30.2%)
CIE-LAB	lab(32.78, 33.01, -62.59)
CIE-LCH	lch(32.78, 70.76, 297.81°)
OKLab	oklab(43.36% -0.0011 -0.1809)
OKLCH	oklch(43.36% 0.181 269.7)
XYZ	xyz(10.9487, 7.4379, 42.9695)
Luminance	0.0744 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40B2 #B29F2D

analogous

#2D82B2 #2D40B2 #5C2DB2

triadic

#2D40B2 #B22D40 #40B22D

tetradic

#2D40B2 #B22D82 #B29F2D #2DB25C

square

#2D40B2 #B22D82 #B29F2D #2DB25C

split-complementary

#2D40B2 #B25C2D #82B22D

monochromatic

#141D50 #212E81 #2D40B2 #4B5ED1 #7C8ADE

Accessibility & contrast

On white

8.44

#2D40B2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.49

#2D40B2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40B2

8.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40B2	#FFFFFF	#000000	##FFFFFF
##2D40B2	1.00	8.44	2.49	8.44
#FFFFFF	8.44	1.00	21.00	1.00
#000000	2.49	21.00	1.00	21.00
##FFFFFF	8.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053B6

Deuteranopia (green-blind)

#0047B0

Tritanopia (blue-blind)

#005E73

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #2d40b2;
/* rgb */ color: rgb(45, 64, 178);
/* oklch */ color: oklch(43.4% 0.181 269.7);

Tailwind

colors: {
  custom: {
    50: '#7a74ca',
    500: '#2d40b2',
    950: '#000000',
  },
}

SCSS

$custom: #2d40b2;
$custom-light: #7a74ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40b2",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 178
  },
  "hsl": {
    "h": 231.429,
    "s": 59.641,
    "l": 43.725
  },
  "oklch": {
    "l": 0.43359,
    "c": 0.18094,
    "h": 269.7
  },
  "luminance": 0.07439
}

Semantic roles & 50–950 ramp

primary

#2D40B2

secondary

#C6BB75

accent

#CC45E3

background

#F8F7FC

surface

#EFEDF8

border

#CAC8D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2D40B2

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

Preview Lab → · Contrast checker → · Palette generator →