#2B1D9E#2B1D9E

#2B1D9E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.9% C 0.193 H 275.4°. Best body text is #FFFFFF at 11.85:1 contrast (WCAG AA passes).

Color values

HEX	#2B1D9E
RGB	rgb(43, 29, 158)
HSL	hsl(247, 69%, 37%)
HSV	hsv(247, 82%, 62%)
CMYK	cmyk(72.8%, 81.6%, 0%, 38%)
CIE-LAB	lab(23.20, 46.48, -66.32)
CIE-LCH	lch(23.20, 80.98, 305.02°)
OKLab	oklab(35.86% 0.0182 -0.1917)
OKLCH	oklch(35.86% 0.193 275.4)
XYZ	xyz(7.6052, 3.8602, 32.6854)
Luminance	0.0386 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1D9E #909E1D

analogous

#1D4F9E #2B1D9E #6C1D9E

triadic

#2B1D9E #9E2B1D #1D9E2B

tetradic

#2B1D9E #9E1D4F #909E1D #1D9E6C

square

#2B1D9E #9E1D4F #909E1D #1D9E6C

split-complementary

#2B1D9E #9E6C1D #4F9E1D

monochromatic

#0F0A37 #1D146A #2B1D9E #3926D2 #6556E0

Accessibility & contrast

On white

11.85

#2B1D9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#2B1D9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1D9E

11.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1D9E	#FFFFFF	#000000	##FFFFFF
##2B1D9E	1.00	11.85	1.77	11.85
#FFFFFF	11.85	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003DA2

Deuteranopia (green-blind)

#00319C

Tritanopia (blue-blind)

#00455E

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2b1d9e;
/* rgb */ color: rgb(43, 29, 158);
/* oklch */ color: oklch(35.9% 0.193 275.4);

Tailwind

colors: {
  custom: {
    50: '#785dbc',
    500: '#2b1d9e',
    950: '#000000',
  },
}

SCSS

$custom: #2b1d9e;
$custom-light: #785dbc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1d9e",
  "rgb": {
    "r": 43,
    "g": 29,
    "b": 158
  },
  "hsl": {
    "h": 246.512,
    "s": 68.984,
    "l": 36.667
  },
  "oklch": {
    "l": 0.35858,
    "c": 0.19261,
    "h": 275.4
  },
  "luminance": 0.03861
}

Semantic roles & 50–950 ramp

primary

#2B1D9E

secondary

#B7C354

accent

#EC3CD9

background

#F8F5FB

surface

#EFE9F7

border

#CAC5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #2B1D9E

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

Preview Lab → · Contrast checker → · Palette generator →