#2B1DA1#2B1DA1

#2B1DA1 is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.2% C 0.196 H 275.1°. Best body text is #FFFFFF at 11.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B1DA1
RGB	rgb(43, 29, 161)
HSL	hsl(246, 69%, 37%)
HSV	hsv(246, 82%, 63%)
CMYK	cmyk(73.3%, 82%, 0%, 36.9%)
CIE-LAB	lab(23.55, 47.40, -67.57)
CIE-LCH	lch(23.55, 82.54, 305.05°)
OKLab	oklab(36.2% 0.0174 -0.1954)
OKLCH	oklch(36.2% 0.196 275.1)
XYZ	xyz(7.8665, 3.9648, 34.0620)
Luminance	0.0397 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1DA1 #93A11D

analogous

#1D51A1 #2B1DA1 #6D1DA1

triadic

#2B1DA1 #A12B1D #1DA12B

tetradic

#2B1DA1 #A11D51 #93A11D #1DA16D

square

#2B1DA1 #A11D51 #93A11D #1DA16D

split-complementary

#2B1DA1 #A16D1D #51A11D

monochromatic

#0F0A39 #1D146D #2B1DA1 #3926D5 #6658E1

Accessibility & contrast

On white

11.71

#2B1DA1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B1DA1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1DA1

11.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1DA1	#FFFFFF	#000000	##FFFFFF
##2B1DA1	1.00	11.71	1.79	11.71
#FFFFFF	11.71	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA5

Deuteranopia (green-blind)

#00329F

Tritanopia (blue-blind)

#004760

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b1da1;
/* rgb */ color: rgb(43, 29, 161);
/* oklch */ color: oklch(36.2% 0.196 275.1);

Tailwind

colors: {
  custom: {
    50: '#785dbe',
    500: '#2b1da1',
    950: '#000000',
  },
}

SCSS

$custom: #2b1da1;
$custom-light: #785dbe;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1da1",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 161
  },
  "hsl": {
    "h": 246.364,
    "s": 69.474,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36203,
    "c": 0.19614,
    "h": 275.1
  },
  "luminance": 0.03966
}

Semantic roles & 50–950 ramp

primary

#2B1DA1

secondary

#B9C455

accent

#EC3CDA

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0B0412

muted

#7C7981

Preview Lab

Preview with #2B1DA1

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

Preview Lab → · Contrast checker → · Palette generator →