#2B1F9C#2B1F9C

#2B1F9C is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.189 H 275.4°. Best body text is #FFFFFF at 11.81:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F9C
RGB	rgb(43, 31, 156)
HSL	hsl(246, 67%, 37%)
HSV	hsv(246, 80%, 61%)
CMYK	cmyk(72.4%, 80.1%, 0%, 38.8%)
CIE-LAB	lab(23.31, 44.86, -64.91)
CIE-LCH	lch(23.31, 78.90, 304.64°)
OKLab	oklab(35.87% 0.0179 -0.1877)
OKLCH	oklch(35.87% 0.189 275.4)
XYZ	xyz(7.4850, 3.8931, 31.8030)
Luminance	0.0389 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F9C #909C1F

analogous

#1F529C #2B1F9C #6A1F9C

triadic

#2B1F9C #9C2B1F #1F9C2B

tetradic

#2B1F9C #9C1F52 #909C1F #1F9C6A

square

#2B1F9C #9C1F52 #909C1F #1F9C6A

split-complementary

#2B1F9C #9C6A1F #529C1F

monochromatic

#0F0B36 #1D1569 #2B1F9C #3929CF #6558DE

Accessibility & contrast

On white

11.81

#2B1F9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2B1F9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F9C

11.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F9C	#FFFFFF	#000000	##FFFFFF
##2B1F9C	1.00	11.81	1.78	11.81
#FFFFFF	11.81	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D9F

Deuteranopia (green-blind)

#00329A

Tritanopia (blue-blind)

#00455D

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b1f9c;
/* rgb */ color: rgb(43, 31, 156);
/* oklch */ color: oklch(35.9% 0.189 275.4);

Tailwind

colors: {
  custom: {
    50: '#775ebb',
    500: '#2b1f9c',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f9c;
$custom-light: #775ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f9c",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 156
  },
  "hsl": {
    "h": 245.76,
    "s": 66.845,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35868,
    "c": 0.18854,
    "h": 275.4
  },
  "luminance": 0.03894
}

Semantic roles & 50–950 ramp

primary

#2B1F9C

secondary

#B7C155

accent

#EA3ED9

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2B1F9C

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

Preview Lab → · Contrast checker → · Palette generator →