#2B1F9D#2B1F9D

#2B1F9D is a dark, vivid blue. Relative luminance 0.039; OKLCH L 36.0% C 0.190 H 275.3°. Best body text is #FFFFFF at 11.76:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F9D
RGB	rgb(43, 31, 157)
HSL	hsl(246, 67%, 37%)
HSV	hsv(246, 80%, 62%)
CMYK	cmyk(72.6%, 80.3%, 0%, 38.4%)
CIE-LAB	lab(23.43, 45.17, -65.34)
CIE-LCH	lch(23.43, 79.43, 304.66°)
OKLab	oklab(35.98% 0.0176 -0.1889)
OKLCH	oklch(35.98% 0.19 275.3)
XYZ	xyz(7.5700, 3.9272, 32.2508)
Luminance	0.0393 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F9D #919D1F

analogous

#1F529D #2B1F9D #6A1F9D

triadic

#2B1F9D #9D2B1F #1F9D2B

tetradic

#2B1F9D #9D1F52 #919D1F #1F9D6A

square

#2B1F9D #9D1F52 #919D1F #1F9D6A

split-complementary

#2B1F9D #9D6A1F #529D1F

monochromatic

#0F0B37 #1D156A #2B1F9D #3929D0 #6558DE

Accessibility & contrast

On white

11.76

#2B1F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#2B1F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F9D

11.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F9D	#FFFFFF	#000000	##FFFFFF
##2B1F9D	1.00	11.76	1.79	11.76
#FFFFFF	11.76	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA0

Deuteranopia (green-blind)

#00329B

Tritanopia (blue-blind)

#00465E

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b1f9d;
/* rgb */ color: rgb(43, 31, 157);
/* oklch */ color: oklch(36.0% 0.190 275.3);

Tailwind

colors: {
  custom: {
    50: '#775ebb',
    500: '#2b1f9d',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f9d;
$custom-light: #775ebb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f9d",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 157
  },
  "hsl": {
    "h": 245.714,
    "s": 67.021,
    "l": 36.863
  },
  "oklch": {
    "l": 0.35981,
    "c": 0.18974,
    "h": 275.3
  },
  "luminance": 0.03928
}

Semantic roles & 50–950 ramp

primary

#2B1F9D

secondary

#B8C256

accent

#EA3EDA

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2B1F9D

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

Preview Lab → · Contrast checker → · Palette generator →