#2B1FA4#2B1FA4

#2B1FA4 is a dark, vivid blue. Relative luminance 0.042; OKLCH L 36.8% C 0.198 H 274.6°. Best body text is #FFFFFF at 11.45:1 contrast (WCAG AA passes).

Color values

HEX	#2B1FA4
RGB	rgb(43, 31, 164)
HSL	hsl(245, 68%, 38%)
HSV	hsv(245, 81%, 64%)
CMYK	cmyk(73.8%, 81.1%, 0%, 35.7%)
CIE-LAB	lab(24.24, 47.37, -68.27)
CIE-LCH	lch(24.24, 83.09, 304.76°)
OKLab	oklab(36.78% 0.0158 -0.1974)
OKLCH	oklch(36.78% 0.198 274.6)
XYZ	xyz(8.1849, 4.1731, 35.4889)
Luminance	0.0417 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1FA4 #98A41F

analogous

#1F55A4 #2B1FA4 #6E1FA4

triadic

#2B1FA4 #A42B1F #1FA42B

tetradic

#2B1FA4 #A41F55 #98A41F #1FA46E

square

#2B1FA4 #A41F55 #98A41F #1FA46E

split-complementary

#2B1FA4 #A46E1F #55A41F

monochromatic

#100C3D #1E1571 #2B1FA4 #392AD7 #695DE0

Accessibility & contrast

On white

11.45

#2B1FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#2B1FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1FA4

11.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1FA4	#FFFFFF	#000000	##FFFFFF
##2B1FA4	1.00	11.45	1.83	11.45
#FFFFFF	11.45	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003FA8

Deuteranopia (green-blind)

#0033A2

Tritanopia (blue-blind)

#004862

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b1fa4;
/* rgb */ color: rgb(43, 31, 164);
/* oklch */ color: oklch(36.8% 0.198 274.6);

Tailwind

colors: {
  custom: {
    50: '#795fc0',
    500: '#2b1fa4',
    950: '#000000',
  },
}

SCSS

$custom: #2b1fa4;
$custom-light: #795fc0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1fa4",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 164
  },
  "hsl": {
    "h": 245.414,
    "s": 68.205,
    "l": 38.235
  },
  "oklch": {
    "l": 0.36777,
    "c": 0.19805,
    "h": 274.6
  },
  "luminance": 0.04174
}

Semantic roles & 50–950 ramp

primary

#2B1FA4

secondary

#BBC55A

accent

#EB3DDB

background

#F8F5FC

surface

#EFE9F8

border

#CAC5D1

text

#0B0512

muted

#7C7981

Preview Lab

Preview with #2B1FA4

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

Preview Lab → · Contrast checker → · Palette generator →