#2B3399#2B3399

#2B3399 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.6% C 0.164 H 272.5°. Best body text is #FFFFFF at 10.31:1 contrast (WCAG AA passes).

Color values

HEX	#2B3399
RGB	rgb(43, 51, 153)
HSL	hsl(236, 56%, 38%)
HSV	hsv(236, 72%, 60%)
CMYK	cmyk(71.9%, 66.7%, 0%, 40%)
CIE-LAB	lab(27.24, 32.07, -56.61)
CIE-LCH	lch(27.24, 65.06, 299.53°)
OKLab	oklab(38.58% 0.0071 -0.1636)
OKLCH	oklch(38.58% 0.164 272.5)
XYZ	xyz(7.9279, 5.1804, 30.7129)
Luminance	0.0518 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3399 #99912B

analogous

#2B6A99 #2B3399 #5A2B99

triadic

#2B3399 #992B33 #33992B

tetradic

#2B3399 #992B6A #99912B #2B995A

square

#2B3399 #992B6A #99912B #2B995A

split-complementary

#2B3399 #995A2B #6A992B

monochromatic

#101339 #1E2369 #2B3399 #3A44C8 #6971D5

Accessibility & contrast

On white

10.31

#2B3399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.04

#2B3399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3399

10.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3399	#FFFFFF	#000000	##FFFFFF
##2B3399	1.00	10.31	2.04	10.31
#FFFFFF	10.31	1.00	21.00	1.00
#000000	2.04	21.00	1.00	21.00
##FFFFFF	10.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469C

Deuteranopia (green-blind)

#003B97

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3399;
/* rgb */ color: rgb(43, 51, 153);
/* oklch */ color: oklch(38.6% 0.164 272.5);

Tailwind

colors: {
  custom: {
    50: '#746bb8',
    500: '#2b3399',
    950: '#000000',
  },
}

SCSS

$custom: #2b3399;
$custom-light: #746bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3399",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 235.636,
    "s": 56.122,
    "l": 38.431
  },
  "oklch": {
    "l": 0.3858,
    "c": 0.16371,
    "h": 272.5
  },
  "luminance": 0.05181
}

Semantic roles & 50–950 ramp

primary

#2B3399

secondary

#BCB564

accent

#D448DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B3399

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

Preview Lab → · Contrast checker → · Palette generator →