#2D40AB#2D40AB

#2D40AB is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.7% C 0.172 H 269.7°. Best body text is #FFFFFF at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#2D40AB
RGB	rgb(45, 64, 171)
HSL	hsl(231, 58%, 42%)
HSV	hsv(231, 74%, 67%)
CMYK	cmyk(73.7%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(32.18, 30.44, -59.41)
CIE-LCH	lch(32.18, 66.75, 297.13°)
OKLab	oklab(42.73% -0.0008 -0.1716)
OKLCH	oklch(42.73% 0.172 269.7)
XYZ	xyz(10.2637, 7.1639, 39.3620)
Luminance	0.0717 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D40AB #AB982D

analogous

#2D7FAB #2D40AB #592DAB

triadic

#2D40AB #AB2D40 #40AB2D

tetradic

#2D40AB #AB2D7F #AB982D #2DAB59

square

#2D40AB #AB2D7F #AB982D #2DAB59

split-complementary

#2D40AB #AB592D #7FAB2D

monochromatic

#141C4A #202E7B #2D40AB #475BCE #7786DB

Accessibility & contrast

On white

8.63

#2D40AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2D40AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D40AB

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D40AB	#FFFFFF	#000000	##FFFFFF
##2D40AB	1.00	8.63	2.43	8.63
#FFFFFF	8.63	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0046A9

Tritanopia (blue-blind)

#005B6F

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2d40ab;
/* rgb */ color: rgb(45, 64, 171);
/* oklch */ color: oklch(42.7% 0.172 269.7);

Tailwind

colors: {
  custom: {
    50: '#7874c5',
    500: '#2d40ab',
    950: '#000000',
  },
}

SCSS

$custom: #2d40ab;
$custom-light: #7874c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2d40ab",
  "rgb": {
    "r": 45,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 230.952,
    "s": 58.333,
    "l": 42.353
  },
  "oklch": {
    "l": 0.42725,
    "c": 0.17162,
    "h": 269.7
  },
  "luminance": 0.07165
}

Semantic roles & 50–950 ramp

primary

#2D40AB

secondary

#C3B771

accent

#CA46E2

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2D40AB

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

Preview Lab → · Contrast checker → · Palette generator →