#2B2591#2B2591

#2B2591 is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.5% C 0.169 H 275.9°. Best body text is #FFFFFF at 11.82:1 contrast (WCAG AA passes).

Color values

HEX	#2B2591
RGB	rgb(43, 37, 145)
HSL	hsl(243, 59%, 36%)
HSV	hsv(243, 74%, 57%)
CMYK	cmyk(70.3%, 74.5%, 0%, 43.1%)
CIE-LAB	lab(23.27, 37.96, -58.21)
CIE-LCH	lch(23.27, 69.49, 303.11°)
OKLab	oklab(35.48% 0.0173 -0.1682)
OKLCH	oklch(35.48% 0.169 275.9)
XYZ	xyz(6.7670, 3.8804, 27.1750)
Luminance	0.0388 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B2591 #8B9125

analogous

#255591 #2B2591 #612591

triadic

#2B2591 #912B25 #25912B

tetradic

#2B2591 #912555 #8B9125 #259161

square

#2B2591 #912555 #8B9125 #259161

split-complementary

#2B2591 #916125 #559125

monochromatic

#0E0C2F #1D1960 #2B2591 #3931C2 #625BD5

Accessibility & contrast

On white

11.82

#2B2591 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#2B2591 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B2591

11.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B2591	#FFFFFF	#000000	##FFFFFF
##2B2591	1.00	11.82	1.78	11.82
#FFFFFF	11.82	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C94

Deuteranopia (green-blind)

#00338F

Tritanopia (blue-blind)

#004459

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #2b2591;
/* rgb */ color: rgb(43, 37, 145);
/* oklch */ color: oklch(35.5% 0.169 275.9);

Tailwind

colors: {
  custom: {
    50: '#7461b2',
    500: '#2b2591',
    950: '#000000',
  },
}

SCSS

$custom: #2b2591;
$custom-light: #7461b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b2591",
  "rgb": {
    "r": 43,
    "g": 37,
    "b": 145
  },
  "hsl": {
    "h": 243.333,
    "s": 59.341,
    "l": 35.686
  },
  "oklch": {
    "l": 0.35482,
    "c": 0.16913,
    "h": 275.9
  },
  "luminance": 0.03881
}

Semantic roles & 50–950 ramp

primary

#2B2591

secondary

#B5BA58

accent

#E345DA

background

#F7F5FB

surface

#EEEAF6

border

#C9C6D0

text

#090511

muted

#7B7980

Preview Lab

Preview with #2B2591

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

Preview Lab → · Contrast checker → · Palette generator →