#2B1C81#2B1C81

#2B1C81 is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.5% C 0.158 H 279.7°. Best body text is #FFFFFF at 13.24:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C81
RGB	rgb(43, 28, 129)
HSL	hsl(249, 64%, 31%)
HSV	hsv(249, 78%, 51%)
CMYK	cmyk(66.7%, 78.3%, 0%, 49.4%)
CIE-LAB	lab(19.76, 37.77, -53.99)
CIE-LCH	lch(19.76, 65.89, 304.98°)
OKLab	oklab(32.49% 0.0266 -0.1559)
OKLCH	oklch(32.49% 0.158 279.7)
XYZ	xyz(5.3727, 2.9286, 21.0468)
Luminance	0.0293 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C81 #72811C

analogous

#1C3F81 #2B1C81 #5D1C81

triadic

#2B1C81 #812B1C #1C812B

tetradic

#2B1C81 #811C3F #72811C #1C815D

square

#2B1C81 #811C3F #72811C #1C815D

split-complementary

#2B1C81 #815D1C #3F811C

monochromatic

#09061C #1A114F #2B1C81 #3C27B3 #5842D6

Accessibility & contrast

On white

13.24

#2B1C81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.59

#2B1C81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C81

13.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C81	#FFFFFF	#000000	##FFFFFF
##2B1C81	1.00	13.24	1.59	13.24
#FFFFFF	13.24	1.00	21.00	1.00
#000000	1.59	21.00	1.00	21.00
##FFFFFF	13.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003384

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#00394D

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #2b1c81;
/* rgb */ color: rgb(43, 28, 129);
/* oklch */ color: oklch(32.5% 0.158 279.7);

Tailwind

colors: {
  custom: {
    50: '#715ba7',
    500: '#2b1c81',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c81;
$custom-light: #715ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c81",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 129
  },
  "hsl": {
    "h": 248.911,
    "s": 64.331,
    "l": 30.784
  },
  "oklch": {
    "l": 0.32487,
    "c": 0.15811,
    "h": 279.7
  },
  "luminance": 0.02929
}

Semantic roles & 50–950 ramp

primary

#2B1C81

secondary

#A4B444

accent

#E740CF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1C81

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

Preview Lab → · Contrast checker → · Palette generator →