#2B1D81#2B1D81

#2B1D81 is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.6% C 0.157 H 279.5°. Best body text is #FFFFFF at 13.16:1 contrast (WCAG AA passes).

Color values

HEX	#2B1D81
RGB	rgb(43, 29, 129)
HSL	hsl(248, 63%, 31%)
HSV	hsv(248, 78%, 51%)
CMYK	cmyk(66.7%, 77.5%, 0%, 49.4%)
CIE-LAB	lab(19.95, 37.22, -53.67)
CIE-LCH	lch(19.95, 65.31, 304.74°)
OKLab	oklab(32.62% 0.0259 -0.1549)
OKLCH	oklch(32.62% 0.157 279.5)
XYZ	xyz(5.3968, 2.9769, 21.0548)
Luminance	0.0298 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1D81 #73811D

analogous

#1D4181 #2B1D81 #5D1D81

triadic

#2B1D81 #812B1D #1D812B

tetradic

#2B1D81 #811D41 #73811D #1D815D

square

#2B1D81 #811D41 #73811D #1D815D

split-complementary

#2B1D81 #815D1D #41811D

monochromatic

#0A071D #1A124F #2B1D81 #3C28B3 #5844D5

Accessibility & contrast

On white

13.16

#2B1D81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#2B1D81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1D81

13.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1D81	#FFFFFF	#000000	##FFFFFF
##2B1D81	1.00	13.16	1.60	13.16
#FFFFFF	13.16	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003484

Deuteranopia (green-blind)

#002C7F

Tritanopia (blue-blind)

#003A4E

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #2b1d81;
/* rgb */ color: rgb(43, 29, 129);
/* oklch */ color: oklch(32.6% 0.157 279.5);

Tailwind

colors: {
  custom: {
    50: '#715ba7',
    500: '#2b1d81',
    950: '#000000',
  },
}

SCSS

$custom: #2b1d81;
$custom-light: #715ba7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1d81",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 129
  },
  "hsl": {
    "h": 248.4,
    "s": 63.291,
    "l": 30.98
  },
  "oklch": {
    "l": 0.32624,
    "c": 0.15708,
    "h": 279.5
  },
  "luminance": 0.02977
}

Semantic roles & 50–950 ramp

primary

#2B1D81

secondary

#A5B446

accent

#E641CF

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1D81

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

Preview Lab → · Contrast checker → · Palette generator →