#2B1C90#2B1C90

#2B1C90 is a dark, vivid blue. Relative luminance 0.034; OKLCH L 34.1% C 0.177 H 277.3°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#2B1C90
RGB	rgb(43, 28, 144)
HSL	hsl(248, 67%, 34%)
HSV	hsv(248, 81%, 56%)
CMYK	cmyk(70.1%, 80.6%, 0%, 43.5%)
CIE-LAB	lab(21.42, 42.58, -60.65)
CIE-LCH	lch(21.42, 74.10, 305.07°)
OKLab	oklab(34.15% 0.0225 -0.1752)
OKLCH	oklch(34.15% 0.177 277.3)
XYZ	xyz(6.4439, 3.3571, 26.6886)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1C90 #81901C

analogous

#1C4790 #2B1C90 #651C90

triadic

#2B1C90 #902B1C #1C902B

tetradic

#2B1C90 #901C47 #81901C #1C9065

square

#2B1C90 #901C47 #81901C #1C9065

split-complementary

#2B1C90 #90651C #47901C

monochromatic

#0C082A #1C125D #2B1C90 #3A26C3 #5D4ADC

Accessibility & contrast

On white

12.56

#2B1C90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#2B1C90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1C90

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1C90	#FFFFFF	#000000	##FFFFFF
##2B1C90	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003893

Deuteranopia (green-blind)

#002E8E

Tritanopia (blue-blind)

#003F56

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2b1c90;
/* rgb */ color: rgb(43, 28, 144);
/* oklch */ color: oklch(34.1% 0.177 277.3);

Tailwind

colors: {
  custom: {
    50: '#745cb2',
    500: '#2b1c90',
    950: '#000000',
  },
}

SCSS

$custom: #2b1c90;
$custom-light: #745cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1c90",
  "rgb": {
    "r": 43,
    "g": 28,
    "b": 144
  },
  "hsl": {
    "h": 247.759,
    "s": 67.442,
    "l": 33.725
  },
  "oklch": {
    "l": 0.34146,
    "c": 0.17668,
    "h": 277.3
  },
  "luminance": 0.03358
}

Semantic roles & 50–950 ramp

primary

#2B1C90

secondary

#AFBE4A

accent

#EA3DD4

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2B1C90

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

Preview Lab → · Contrast checker → · Palette generator →