#2B1A8F#2B1A8F

#2B1A8F is a dark, vivid blue. Relative luminance 0.032; OKLCH L 33.8% C 0.177 H 277.7°. Best body text is #FFFFFF at 12.75:1 contrast (WCAG AA passes).

Color values

HEX	#2B1A8F
RGB	rgb(43, 26, 143)
HSL	hsl(249, 69%, 33%)
HSV	hsv(249, 82%, 56%)
CMYK	cmyk(69.9%, 81.8%, 0%, 43.9%)
CIE-LAB	lab(20.96, 43.27, -60.79)
CIE-LCH	lch(20.96, 74.61, 305.44°)
OKLab	oklab(33.79% 0.0237 -0.1756)
OKLCH	oklch(33.79% 0.177 277.7)
XYZ	xyz(6.3220, 3.2350, 26.2725)
Luminance	0.0324 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B1A8F #7E8F1A

analogous

#1A438F #2B1A8F #651A8F

triadic

#2B1A8F #8F2B1A #1A8F2B

tetradic

#2B1A8F #8F1A43 #7E8F1A #1A8F65

square

#2B1A8F #8F1A43 #7E8F1A #1A8F65

split-complementary

#2B1A8F #8F651A #438F1A

monochromatic

#0C0727 #1B115B #2B1A8F #3B23C3 #5C46DD

Accessibility & contrast

On white

12.75

#2B1A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.65

#2B1A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B1A8F

12.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B1A8F	#FFFFFF	#000000	##FFFFFF
##2B1A8F	1.00	12.75	1.65	12.75
#FFFFFF	12.75	1.00	21.00	1.00
#000000	1.65	21.00	1.00	21.00
##FFFFFF	12.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003792

Deuteranopia (green-blind)

#002D8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #2b1a8f;
/* rgb */ color: rgb(43, 26, 143);
/* oklch */ color: oklch(33.8% 0.177 277.7);

Tailwind

colors: {
  custom: {
    50: '#745ab1',
    500: '#2b1a8f',
    950: '#000000',
  },
}

SCSS

$custom: #2b1a8f;
$custom-light: #745ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#2b1a8f",
  "rgb": {
    "r": 43,
    "g": 26,
    "b": 143
  },
  "hsl": {
    "h": 248.718,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33793,
    "c": 0.17722,
    "h": 277.7
  },
  "luminance": 0.03236
}

Semantic roles & 50–950 ramp

primary

#2B1A8F

secondary

#ADBF46

accent

#EC3CD2

background

#F7F5FB

surface

#EEE9F6

border

#C9C5D0

text

#0A0411

muted

#7C7980

Preview Lab

Preview with #2B1A8F

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

Preview Lab → · Contrast checker → · Palette generator →