#2B40AB#2B40AB

#2B40AB is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.6% C 0.172 H 269.1°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#2B40AB
RGB	rgb(43, 64, 171)
HSL	hsl(230, 60%, 42%)
HSV	hsv(230, 75%, 67%)
CMYK	cmyk(74.9%, 62.6%, 0%, 32.9%)
CIE-LAB	lab(32.08, 30.20, -59.58)
CIE-LCH	lch(32.08, 66.79, 296.88°)
OKLab	oklab(42.62% -0.0028 -0.1721)
OKLCH	oklch(42.62% 0.172 269.1)
XYZ	xyz(10.1778, 7.1196, 39.3580)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B40AB #AB962B

analogous

#2B80AB #2B40AB #562BAB

triadic

#2B40AB #AB2B40 #40AB2B

tetradic

#2B40AB #AB2B80 #AB962B #2BAB56

square

#2B40AB #AB2B80 #AB962B #2BAB56

split-complementary

#2B40AB #AB562B #80AB2B

monochromatic

#121B49 #1F2E7A #2B40AB #435AD0 #7485DC

Accessibility & contrast

On white

8.66

#2B40AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2B40AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B40AB

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B40AB	#FFFFFF	#000000	##FFFFFF
##2B40AB	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052AE

Deuteranopia (green-blind)

#0046A9

Tritanopia (blue-blind)

#005C6F

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b40ab;
/* rgb */ color: rgb(43, 64, 171);
/* oklch */ color: oklch(42.6% 0.172 269.1);

Tailwind

colors: {
  custom: {
    50: '#7874c5',
    500: '#2b40ab',
    950: '#000000',
  },
}

SCSS

$custom: #2b40ab;
$custom-light: #7874c5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b40ab",
  "rgb": {
    "r": 43,
    "g": 64,
    "b": 171
  },
  "hsl": {
    "h": 230.156,
    "s": 59.813,
    "l": 41.961
  },
  "oklch": {
    "l": 0.42624,
    "c": 0.17217,
    "h": 269.1
  },
  "luminance": 0.07121
}

Semantic roles & 50–950 ramp

primary

#2B40AB

secondary

#C4B66E

accent

#C945E3

background

#F7F7FC

surface

#EEEDF8

border

#C9C8D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B40AB

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

Preview Lab → · Contrast checker → · Palette generator →