#2B3379#2B3379

#2B3379 is a dark, moderate blue. Relative luminance 0.043; OKLCH L 35.7% C 0.118 H 273.9°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#2B3379
RGB	rgb(43, 51, 121)
HSL	hsl(234, 48%, 32%)
HSV	hsv(234, 64%, 47%)
CMYK	cmyk(64.5%, 57.9%, 0%, 52.5%)
CIE-LAB	lab(24.52, 20.27, -41.14)
CIE-LCH	lch(24.52, 45.86, 296.23°)
OKLab	oklab(35.72% 0.008 -0.1181)
OKLCH	oklch(35.72% 0.118 273.9)
XYZ	xyz(5.6301, 4.2613, 18.6113)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3379 #79712B

analogous

#2B5A79 #2B3379 #4A2B79

triadic

#2B3379 #792B33 #33792B

tetradic

#2B3379 #792B5A #79712B #2B794A

square

#2B3379 #792B5A #79712B #2B794A

split-complementary

#2B3379 #794A2B #5A792B

monochromatic

#0B0D1F #1B204C #2B3379 #3B46A6 #5A65C4

Accessibility & contrast

On white

11.34

#2B3379 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2B3379 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3379

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3379	#FFFFFF	#000000	##FFFFFF
##2B3379	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003E7B

Deuteranopia (green-blind)

#003778

Tritanopia (blue-blind)

#004450

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2b3379;
/* rgb */ color: rgb(43, 51, 121);
/* oklch */ color: oklch(35.7% 0.118 273.9);

Tailwind

colors: {
  custom: {
    50: '#6d6aa0',
    500: '#2b3379',
    950: '#000000',
  },
}

SCSS

$custom: #2b3379;
$custom-light: #6d6aa0;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3379",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 121
  },
  "hsl": {
    "h": 233.846,
    "s": 47.561,
    "l": 32.157
  },
  "oklch": {
    "l": 0.3572,
    "c": 0.1184,
    "h": 273.9
  },
  "luminance": 0.04262
}

Semantic roles & 50–950 ramp

primary

#2B3379

secondary

#AAA256

accent

#C951D7

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#08060F

muted

#7B7A7E

Preview Lab

Preview with #2B3379

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

Preview Lab → · Contrast checker → · Palette generator →