#2B1FB3#2B1FB3

#2B1FB3 is a dark, highly saturated blue. Relative luminance 0.047; OKLCH L 38.5% C 0.215 H 273.2°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#2B1FB3
RGB	rgb(43, 31, 179)
HSL	hsl(245, 70%, 41%)
HSV	hsv(245, 83%, 70%)
CMYK	cmyk(76%, 82.7%, 0%, 29.8%)
CIE-LAB	lab(26.00, 51.97, -74.37)
CIE-LCH	lch(26.00, 90.73, 304.95°)
OKLab	oklab(38.51% 0.0119 -0.2151)
OKLCH	oklch(38.51% 0.215 273.2)
XYZ	xyz(9.6202, 4.7472, 43.0484)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1FB3 #A7B31F

analogous

#1F5DB3 #2B1FB3 #751FB3

triadic

#2B1FB3 #B32B1F #1FB32B

tetradic

#2B1FB3 #B31F5D #A7B31F #1FB375

square

#2B1FB3 #B31F5D #A7B31F #1FB375

split-complementary

#2B1FB3 #B3751F #5DB31F

monochromatic

#120D4B #1E167F #2B1FB3 #4133DC #7268E5

Accessibility & contrast

On white

10.77

#2B1FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B1FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1FB3

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1FB3	#FFFFFF	#000000	##FFFFFF
##2B1FB3	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0044B7

Deuteranopia (green-blind)

#0036B1

Tritanopia (blue-blind)

#004F6B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b1fb3;
/* rgb */ color: rgb(43, 31, 179);
/* oklch */ color: oklch(38.5% 0.215 273.2);

Tailwind

colors: {
  custom: {
    50: '#7c60cb',
    500: '#2b1fb3',
    950: '#000000',
  },
}

SCSS

$custom: #2b1fb3;
$custom-light: #7c60cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1fb3",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 179
  },
  "hsl": {
    "h": 244.865,
    "s": 70.476,
    "l": 41.176
  },
  "oklch": {
    "l": 0.38513,
    "c": 0.21546,
    "h": 273.2
  },
  "luminance": 0.04748
}

Semantic roles & 50–950 ramp

primary

#2B1FB3

secondary

#C2CA64

accent

#ED3BDF

background

#F8F5FC

surface

#F0EAF9

border

#CBC6D2

text

#0C0514

muted

#7D7982

Preview Lab

Preview with #2B1FB3

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

Preview Lab → · Contrast checker → · Palette generator →