#2B3AAD#2B3AAD

#2B3AAD is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.7% C 0.182 H 270.3°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AAD
RGB	rgb(43, 58, 173)
HSL	hsl(233, 60%, 42%)
HSV	hsv(233, 75%, 68%)
CMYK	cmyk(75.1%, 66.5%, 0%, 32.2%)
CIE-LAB	lab(30.77, 34.82, -62.91)
CIE-LCH	lch(30.77, 71.90, 298.97°)
OKLab	oklab(41.72% 0.001 -0.182)
OKLCH	oklch(41.72% 0.182 270.3)
XYZ	xyz(10.0496, 6.5558, 40.2628)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.40

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AAD #AD9E2B

analogous

#2B7BAD #2B3AAD #5D2BAD

triadic

#2B3AAD #AD2B3A #3AAD2B

tetradic

#2B3AAD #AD2B7B #AD9E2B #2BAD5D

square

#2B3AAD #AD2B7B #AD9E2B #2BAD5D

split-complementary

#2B3AAD #AD5D2B #7BAD2B

monochromatic

#13194B #1F2A7C #2B3AAD #4555D1 #7681DD

Accessibility & contrast

On white

9.09

#2B3AAD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#2B3AAD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AAD

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AAD	#FFFFFF	#000000	##FFFFFF
##2B3AAD	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB1

Deuteranopia (green-blind)

#0042AB

Tritanopia (blue-blind)

#00596E

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2b3aad;
/* rgb */ color: rgb(43, 58, 173);
/* oklch */ color: oklch(41.7% 0.182 270.3);

Tailwind

colors: {
  custom: {
    50: '#7970c6',
    500: '#2b3aad',
    950: '#000000',
  },
}

SCSS

$custom: #2b3aad;
$custom-light: #7970c6;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3aad",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 173
  },
  "hsl": {
    "h": 233.077,
    "s": 60.185,
    "l": 42.353
  },
  "oklch": {
    "l": 0.41721,
    "c": 0.18196,
    "h": 270.3
  },
  "luminance": 0.06557
}

Semantic roles & 50–950 ramp

primary

#2B3AAD

secondary

#C4BB6F

accent

#D144E3

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #2B3AAD

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

Preview Lab → · Contrast checker → · Palette generator →