#2B1BAA#2B1BAA

#2B1BAA is a dark, highly saturated blue. Relative luminance 0.042; OKLCH L 37.0% C 0.208 H 274.3°. Best body text is #FFFFFF at 11.41:1 contrast (WCAG AA passes).

Color values

HEX	#2B1BAA
RGB	rgb(43, 27, 170)
HSL	hsl(247, 73%, 39%)
HSV	hsv(247, 84%, 67%)
CMYK	cmyk(74.7%, 84.1%, 0%, 33.3%)
CIE-LAB	lab(24.32, 51.04, -71.76)
CIE-LCH	lch(24.32, 88.06, 305.42°)
OKLab	oklab(37.04% 0.0155 -0.2075)
OKLCH	oklch(37.04% 0.208 274.3)
XYZ	xyz(8.6415, 4.1989, 38.3775)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1BAA #9AAA1B

analogous

#1B52AA #2B1BAA #721BAA

triadic

#2B1BAA #AA2B1B #1BAA2B

tetradic

#2B1BAA #AA1B52 #9AAA1B #1BAA72

square

#2B1BAA #AA1B52 #9AAA1B #1BAA72

split-complementary

#2B1BAA #AA721B #52AA1B

monochromatic

#100A40 #1E1375 #2B1BAA #3A26DC #6A5BE5

Accessibility & contrast

On white

11.41

#2B1BAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#2B1BAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1BAA

11.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1BAA	#FFFFFF	#000000	##FFFFFF
##2B1BAA	1.00	11.41	1.84	11.41
#FFFFFF	11.41	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0040AE

Deuteranopia (green-blind)

#0033A8

Tritanopia (blue-blind)

#004A65

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b1baa;
/* rgb */ color: rgb(43, 27, 170);
/* oklch */ color: oklch(37.0% 0.208 274.3);

Tailwind

colors: {
  custom: {
    50: '#7b5dc5',
    500: '#2b1baa',
    950: '#000000',
  },
}

SCSS

$custom: #2b1baa;
$custom-light: #7b5dc5;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1baa",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 170
  },
  "hsl": {
    "h": 246.713,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.3704,
    "c": 0.20807,
    "h": 274.3
  },
  "luminance": 0.042
}

Semantic roles & 50–950 ramp

primary

#2B1BAA

secondary

#BCC958

accent

#EF39DB

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0413

muted

#7C7982

Preview Lab

Preview with #2B1BAA

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

Preview Lab → · Contrast checker → · Palette generator →