#2B1F9F#2B1F9F

#2B1F9F is a dark, vivid blue. Relative luminance 0.040; OKLCH L 36.2% C 0.192 H 275.1°. Best body text is #FFFFFF at 11.67:1 contrast (WCAG AA passes).

Color values

HEX	#2B1F9F
RGB	rgb(43, 31, 159)
HSL	hsl(246, 67%, 37%)
HSV	hsv(246, 81%, 62%)
CMYK	cmyk(73%, 80.5%, 0%, 37.6%)
CIE-LAB	lab(23.66, 45.80, -66.18)
CIE-LCH	lch(23.66, 80.48, 304.69°)
OKLab	oklab(36.21% 0.0171 -0.1914)
OKLCH	oklch(36.21% 0.192 275.1)
XYZ	xyz(7.7422, 3.9960, 33.1575)
Luminance	0.0400 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1F9F #939F1F

analogous

#1F539F #2B1F9F #6B1F9F

triadic

#2B1F9F #9F2B1F #1F9F2B

tetradic

#2B1F9F #9F1F53 #939F1F #1F9F6B

square

#2B1F9F #9F1F53 #939F1F #1F9F6B

split-complementary

#2B1F9F #9F6B1F #539F1F

monochromatic

#0F0B39 #1D156C #2B1F9F #3929D2 #665ADF

Accessibility & contrast

On white

11.67

#2B1F9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.80

#2B1F9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1F9F

11.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1F9F	#FFFFFF	#000000	##FFFFFF
##2B1F9F	1.00	11.67	1.80	11.67
#FFFFFF	11.67	1.00	21.00	1.00
#000000	1.80	21.00	1.00	21.00
##FFFFFF	11.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003EA3

Deuteranopia (green-blind)

#00329D

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #2b1f9f;
/* rgb */ color: rgb(43, 31, 159);
/* oklch */ color: oklch(36.2% 0.192 275.1);

Tailwind

colors: {
  custom: {
    50: '#785ebd',
    500: '#2b1f9f',
    950: '#000000',
  },
}

SCSS

$custom: #2b1f9f;
$custom-light: #785ebd;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1f9f",
  "rgb": {
    "r": 43,
    "g": 31,
    "b": 159
  },
  "hsl": {
    "h": 245.625,
    "s": 67.368,
    "l": 37.255
  },
  "oklch": {
    "l": 0.36207,
    "c": 0.19213,
    "h": 275.1
  },
  "luminance": 0.03997
}

Semantic roles & 50–950 ramp

primary

#2B1F9F

secondary

#B9C357

accent

#EA3EDA

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0512

muted

#7C7981

Preview Lab

Preview with #2B1F9F

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

Preview Lab → · Contrast checker → · Palette generator →