#2B1BC9#2B1BC9

#2B1BC9 is a dark, highly saturated blue. Relative luminance 0.055; OKLCH L 40.8% C 0.242 H 271.6°. Best body text is #FFFFFF at 9.99:1 contrast (WCAG AA passes).

Color values

HEX#2B1BC9
RGBrgb(43, 27, 201)
HSLhsl(246, 76%, 45%)
HSVhsv(246, 87%, 79%)
CMYKcmyk(78.6%, 86.6%, 0%, 21.2%)
CIE-LABlab(28.15, 60.03, -83.82)
CIE-LCHlch(28.15, 103.09, 305.61°)
OKLaboklab(40.76% 0.007 -0.2424)
OKLCHoklch(40.76% 0.242 271.6)
XYZxyz(11.9273, 5.5132, 55.6826)
Luminance0.0551 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#2B1BC9 #B9C91B
analogous
#1B62C9 #2B1BC9 #821BC9
triadic
#2B1BC9 #C92B1B #1BC92B
tetradic
#2B1BC9 #C91B62 #B9C91B #1BC982
square
#2B1BC9 #C91B62 #B9C91B #1BC982
split-complementary
#2B1BC9 #C9821B #62C91B
monochromatic
#140D5D #1F1493 #2B1BC9 #4C3CE5 #7D72EC

Accessibility & contrast

On white

9.99
#2B1BC9 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.10
#2B1BC9 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1BC9
9.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##2B1BC9#FFFFFF#000000##FFFFFF
##2B1BC91.009.992.109.99
#FFFFFF9.991.0021.001.00
#0000002.1021.001.0021.00
##FFFFFF9.991.0021.001.00

Color blindness preview

Protanopia (red-blind)
#004ACD
Deuteranopia (green-blind)
#003AC6
Tritanopia (blue-blind)
#005777
Achromatopsia (no color)
#424242

Design tokens & code

CSS
--color: #2b1bc9;
/* rgb */ color: rgb(43, 27, 201);
/* oklch */ color: oklch(40.8% 0.242 271.6);
Tailwind
colors: {
  custom: {
    50: '#8260db',
    500: '#2b1bc9',
    950: '#000000',
  },
}
SCSS
$custom: #2b1bc9;
$custom-light: #8260db;
$custom-dark: #000000;
JSON
{
  "hex": "#2b1bc9",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 201
  },
  "hsl": {
    "h": 245.517,
    "s": 76.316,
    "l": 44.706
  },
  "oklch": {
    "l": 0.40755,
    "c": 0.24248,
    "h": 271.6
  },
  "luminance": 0.05515
}

Semantic roles & 50–950 ramp

primary
#2B1BC9
secondary
#C9D36D
accent
#F335E1
background
#F9F5FD
surface
#F1EAFB
border
#CBC6D4
text
#0D0515
muted
#7E7983

Preview Lab

Preview with #2B1BC9

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

Preview Lab → · Contrast checker → · Palette generator →

#2B1BC9 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva