#2B1F9A#2B1F9A

#2B1F9A is a dark, vivid blue. Relative luminance 0.038; OKLCH L 35.6% C 0.186 H 275.7°. Best body text is #FFFFFF at 11.90:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F9A
RGB	rgb(43, 31, 154)
HSL	hsl(246, 66%, 36%)
HSV	hsv(246, 80%, 60%)
CMYK	cmyk(72.1%, 79.9%, 0%, 39.6%)
CIE-LAB	lab(23.09, 44.22, -64.06)
CIE-LCH	lch(23.09, 77.84, 304.62°)
OKLab	oklab(35.64% 0.0184 -0.1852)
OKLCH	oklch(35.64% 0.186 275.7)
XYZ	xyz(7.3171, 3.8260, 30.9185)
Luminance	0.0383 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F9A #8E9A1F

analogous

#1F519A #2B1F9A #691F9A

triadic

#2B1F9A #9A2B1F #1F9A2B

tetradic

#2B1F9A #9A1F51 #8E9A1F #1F9A69

square

#2B1F9A #9A1F51 #8E9A1F #1F9A69

split-complementary

#2B1F9A #9A691F #519A1F

monochromatic

#0F0A34 #1D1567 #2B1F9A #3929CD #6356DD

Accessibility & contrast

On white

11.90

#2B1F9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2B1F9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F9A

11.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F9A	#FFFFFF	#000000	##FFFFFF
##2B1F9A	1.00	11.90	1.77	11.90
#FFFFFF	11.90	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C9D

Deuteranopia (green-blind)

#003298

Tritanopia (blue-blind)

#00445C

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2b1f9a;
/* rgb */ color: rgb(43, 31, 154);
/* oklch */ color: oklch(35.6% 0.186 275.7);

Tailwind

colors: {
  custom: {
    50: '#775eb9',
    500: '#2b1f9a',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f9a;
$custom-light: #775eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f9a",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 154
  },
  "hsl": {
    "h": 245.854,
    "s": 66.486,
    "l": 36.275
  },
  "oklch": {
    "l": 0.35642,
    "c": 0.18613,
    "h": 275.7
  },
  "luminance": 0.03827
}

Semantic roles & 50–950 ramp

primary

#2B1F9A

secondary

#B6C154

accent

#E93ED9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1F9A

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

Preview Lab → · Contrast checker → · Palette generator →