#2B1B90#2B1B90

#2B1B90 is a dark, vivid blue. Relative luminance 0.033; OKLCH L 34.0% C 0.178 H 277.4°. Best body text is #FFFFFF at 12.63:1 contrast (WCAG AA passes).

Color values

HEX	#2B1B90
RGB	rgb(43, 27, 144)
HSL	hsl(248, 68%, 34%)
HSV	hsv(248, 81%, 56%)
CMYK	cmyk(70.1%, 81.3%, 0%, 43.5%)
CIE-LAB	lab(21.25, 43.09, -60.93)
CIE-LCH	lch(21.25, 74.63, 305.26°)
OKLab	oklab(34.03% 0.023 -0.1761)
OKLCH	oklch(34.03% 0.178 277.4)
XYZ	xyz(6.4206, 3.3105, 26.6808)
Luminance	0.0331 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1B90 #80901B

analogous

#1B4590 #2B1B90 #651B90

triadic

#2B1B90 #902B1B #1B902B

tetradic

#2B1B90 #901B45 #80901B #1B9065

square

#2B1B90 #901B45 #80901B #1B9065

split-complementary

#2B1B90 #90651B #45901B

monochromatic

#0C0829 #1C115C #2B1B90 #3A25C4 #5D49DD

Accessibility & contrast

On white

12.63

#2B1B90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.66

#2B1B90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1B90

12.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1B90	#FFFFFF	#000000	##FFFFFF
##2B1B90	1.00	12.63	1.66	12.63
#FFFFFF	12.63	1.00	21.00	1.00
#000000	1.66	21.00	1.00	21.00
##FFFFFF	12.63	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: #2b1b90;
/* rgb */ color: rgb(43, 27, 144);
/* oklch */ color: oklch(34.0% 0.178 277.4);

Tailwind

colors: {
  custom: {
    50: '#755bb2',
    500: '#2b1b90',
    950: '#000000',
  },
}

SCSS

$custom: #2b1b90;
$custom-light: #755bb2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1b90",
  "rgb": {
    "r": 43,
    "g": 27,
    "b": 144
  },
  "hsl": {
    "h": 248.205,
    "s": 68.421,
    "l": 33.529
  },
  "oklch": {
    "l": 0.34025,
    "c": 0.17756,
    "h": 277.4
  },
  "luminance": 0.03311
}

Semantic roles & 50–950 ramp

primary

#2B1B90

secondary

#AEBF48

accent

#EB3DD3

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2B1B90

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

Preview Lab → · Contrast checker → · Palette generator →