#2B1F81#2B1F81

#2B1F81 is a dark, vivid blue. Relative luminance 0.031; OKLCH L 32.9% C 0.155 H 279.1°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F81
RGB	rgb(43, 31, 129)
HSL	hsl(247, 61%, 31%)
HSV	hsv(247, 76%, 51%)
CMYK	cmyk(66.7%, 76%, 0%, 49.4%)
CIE-LAB	lab(20.35, 36.08, -53.01)
CIE-LCH	lch(20.35, 64.12, 304.24°)
OKLab	oklab(32.91% 0.0246 -0.153)
OKLCH	oklch(32.91% 0.155 279.1)
XYZ	xyz(5.4474, 3.0781, 21.0717)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F81 #75811F

analogous

#1F4481 #2B1F81 #5C1F81

triadic

#2B1F81 #812B1F #1F812B

tetradic

#2B1F81 #811F44 #75811F #1F815C

square

#2B1F81 #811F44 #75811F #1F815C

split-complementary

#2B1F81 #815C1F #44811F

monochromatic

#0A071E #1B1350 #2B1F81 #3B2BB2 #5947D3

Accessibility & contrast

On white

13.00

#2B1F81 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#2B1F81 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F81

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F81	#FFFFFF	#000000	##FFFFFF
##2B1F81	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003584

Deuteranopia (green-blind)

#002D7F

Tritanopia (blue-blind)

#003B4E

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #2b1f81;
/* rgb */ color: rgb(43, 31, 129);
/* oklch */ color: oklch(32.9% 0.155 279.1);

Tailwind

colors: {
  custom: {
    50: '#715ca7',
    500: '#2b1f81',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f81;
$custom-light: #715ca7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f81",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 129
  },
  "hsl": {
    "h": 247.347,
    "s": 61.25,
    "l": 31.373
  },
  "oklch": {
    "l": 0.32909,
    "c": 0.15497,
    "h": 279.1
  },
  "luminance": 0.03079
}

Semantic roles & 50–950 ramp

primary

#2B1F81

secondary

#A7B448

accent

#E443D1

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#09040F

muted

#7B797F

Preview Lab

Preview with #2B1F81

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

Preview Lab → · Contrast checker → · Palette generator →