#2B1C9A#2B1C9A

#2B1C9A is a dark, vivid blue. Relative luminance 0.037; OKLCH L 35.3% C 0.189 H 276.0°. Best body text is #FFFFFF at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C9A
RGB	rgb(43, 28, 154)
HSL	hsl(247, 69%, 36%)
HSV	hsv(247, 82%, 60%)
CMYK	cmyk(72.1%, 81.8%, 0%, 39.6%)
CIE-LAB	lab(22.57, 45.72, -64.92)
CIE-LCH	lch(22.57, 79.40, 305.15°)
OKLab	oklab(35.28% 0.0197 -0.1877)
OKLCH	oklch(35.28% 0.189 276)
XYZ	xyz(7.2423, 3.6765, 30.8935)
Luminance	0.0368 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C9A #8B9A1C

analogous

#1C4C9A #2B1C9A #6A1C9A

triadic

#2B1C9A #9A2B1C #1C9A2B

tetradic

#2B1C9A #9A1C4C #8B9A1C #1C9A6A

square

#2B1C9A #9A1C4C #8B9A1C #1C9A6A

split-complementary

#2B1C9A #9A6A1C #4C9A1C

monochromatic

#0E0932 #1D1366 #2B1C9A #3925CE #6251DF

Accessibility & contrast

On white

12.10

#2B1C9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.74

#2B1C9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C9A

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C9A	#FFFFFF	#000000	##FFFFFF
##2B1C9A	1.00	12.10	1.74	12.10
#FFFFFF	12.10	1.00	21.00	1.00
#000000	1.74	21.00	1.00	21.00
##FFFFFF	12.10	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003B9D

Deuteranopia (green-blind)

#003098

Tritanopia (blue-blind)

#00435C

Achromatopsia (no color)

#363636

Design tokens & code

CSS

--color: #2b1c9a;
/* rgb */ color: rgb(43, 28, 154);
/* oklch */ color: oklch(35.3% 0.189 276.0);

Tailwind

colors: {
  custom: {
    50: '#775cb9',
    500: '#2b1c9a',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c9a;
$custom-light: #775cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c9a",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 154
  },
  "hsl": {
    "h": 247.143,
    "s": 69.231,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35283,
    "c": 0.18869,
    "h": 276
  },
  "luminance": 0.03677
}

Semantic roles & 50–950 ramp

primary

#2B1C9A

secondary

#B5C250

accent

#EC3CD7

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1C9A

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

Preview Lab → · Contrast checker → · Palette generator →