#2B1F8A#2B1F8A

#2B1F8A is a dark, vivid blue. Relative luminance 0.033; OKLCH L 33.9% C 0.166 H 277.8°. Best body text is #FFFFFF at 12.61:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F8A
RGB	rgb(43, 31, 138)
HSL	hsl(247, 63%, 33%)
HSV	hsv(247, 78%, 54%)
CMYK	cmyk(68.8%, 77.5%, 0%, 45.9%)
CIE-LAB	lab(21.31, 39.05, -57.09)
CIE-LCH	lch(21.31, 69.17, 304.38°)
OKLab	oklab(33.87% 0.0225 -0.1649)
OKLCH	oklch(33.87% 0.166 277.8)
XYZ	xyz(6.0722, 3.3280, 24.3622)
Luminance	0.0333 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F8A #7E8A1F

analogous

#1F488A #2B1F8A #601F8A

triadic

#2B1F8A #8A2B1F #1F8A2B

tetradic

#2B1F8A #8A1F48 #7E8A1F #1F8A60

square

#2B1F8A #8A1F48 #7E8A1F #1F8A60

split-complementary

#2B1F8A #8A601F #488A1F

monochromatic

#0C0926 #1B1458 #2B1F8A #3B2ABC #5C4CD7

Accessibility & contrast

On white

12.61

#2B1F8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#2B1F8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F8A

12.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F8A	#FFFFFF	#000000	##FFFFFF
##2B1F8A	1.00	12.61	1.67	12.61
#FFFFFF	12.61	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00378D

Deuteranopia (green-blind)

#002F88

Tritanopia (blue-blind)

#003E53

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #2b1f8a;
/* rgb */ color: rgb(43, 31, 138);
/* oklch */ color: oklch(33.9% 0.166 277.8);

Tailwind

colors: {
  custom: {
    50: '#735dad',
    500: '#2b1f8a',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f8a;
$custom-light: #735dad;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f8a",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 138
  },
  "hsl": {
    "h": 246.729,
    "s": 63.314,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33873,
    "c": 0.16643,
    "h": 277.8
  },
  "luminance": 0.03329
}

Semantic roles & 50–950 ramp

primary

#2B1F8A

secondary

#ADBA4B

accent

#E641D4

background

#F7F5FA

surface

#EDE9F4

border

#C8C5CE

text

#090410

muted

#7B797F

Preview Lab

Preview with #2B1F8A

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

Preview Lab → · Contrast checker → · Palette generator →