#2B3BAD#2B3BAD

#2B3BAD is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.181 H 270.1°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B3BAD
RGB	rgb(43, 59, 173)
HSL	hsl(233, 60%, 42%)
HSV	hsv(233, 75%, 68%)
CMYK	cmyk(75.1%, 65.9%, 0%, 32.2%)
CIE-LAB	lab(31.01, 34.18, -62.51)
CIE-LCH	lch(31.01, 71.25, 298.67°)
OKLab	oklab(41.9% 0.0004 -0.1808)
OKLCH	oklch(41.9% 0.181 270.1)
XYZ	xyz(10.1005, 6.6576, 40.2798)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.45

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3BAD #AD9D2B

analogous

#2B7CAD #2B3BAD #5C2BAD

triadic

#2B3BAD #AD2B3B #3BAD2B

tetradic

#2B3BAD #AD2B7C #AD9D2B #2BAD5C

square

#2B3BAD #AD2B7C #AD9D2B #2BAD5C

split-complementary

#2B3BAD #AD5C2B #7CAD2B

monochromatic

#131A4B #1F2A7C #2B3BAD #4556D1 #7682DD

Accessibility & contrast

On white

9.01

#2B3BAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2B3BAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3BAD

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3BAD	#FFFFFF	#000000	##FFFFFF
##2B3BAD	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB1

Deuteranopia (green-blind)

#0043AB

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b3bad;
/* rgb */ color: rgb(43, 59, 173);
/* oklch */ color: oklch(41.9% 0.181 270.1);

Tailwind

colors: {
  custom: {
    50: '#7971c6',
    500: '#2b3bad',
    950: '#000000',
  },
}

SCSS

$custom: #2b3bad;
$custom-light: #7971c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3bad",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 173
  },
  "hsl": {
    "h": 232.615,
    "s": 60.185,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41897,
    "c": 0.18079,
    "h": 270.1
  },
  "luminance": 0.06659
}

Semantic roles & 50–950 ramp

primary

#2B3BAD

secondary

#C4BA6F

accent

#D044E3

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2B3BAD

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

Preview Lab → · Contrast checker → · Palette generator →