#2B3398#2B3398

#2B3398 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.5% C 0.162 H 272.5°. Best body text is #FFFFFF at 10.35:1 contrast (WCAG AA passes).

Color values

HEX	#2B3398
RGB	rgb(43, 51, 152)
HSL	hsl(236, 56%, 38%)
HSV	hsv(236, 72%, 60%)
CMYK	cmyk(71.7%, 66.4%, 0%, 40.4%)
CIE-LAB	lab(27.15, 31.71, -56.15)
CIE-LCH	lch(27.15, 64.48, 299.46°)
OKLab	oklab(38.49% 0.0072 -0.1622)
OKLCH	oklch(38.49% 0.162 272.5)
XYZ	xyz(7.8457, 5.1475, 30.2798)
Luminance	0.0515 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3398 #98902B

analogous

#2B6998 #2B3398 #592B98

triadic

#2B3398 #982B33 #33982B

tetradic

#2B3398 #982B69 #98902B #2B9859

square

#2B3398 #982B69 #98902B #2B9859

split-complementary

#2B3398 #98592B #69982B

monochromatic

#101339 #1E2368 #2B3398 #3944C7 #6971D5

Accessibility & contrast

On white

10.35

#2B3398 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.03

#2B3398 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3398

10.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3398	#FFFFFF	#000000	##FFFFFF
##2B3398	1.00	10.35	2.03	10.35
#FFFFFF	10.35	1.00	21.00	1.00
#000000	2.03	21.00	1.00	21.00
##FFFFFF	10.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459B

Deuteranopia (green-blind)

#003B96

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3398;
/* rgb */ color: rgb(43, 51, 152);
/* oklch */ color: oklch(38.5% 0.162 272.5);

Tailwind

colors: {
  custom: {
    50: '#746bb7',
    500: '#2b3398',
    950: '#000000',
  },
}

SCSS

$custom: #2b3398;
$custom-light: #746bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3398",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 152
  },
  "hsl": {
    "h": 235.596,
    "s": 55.897,
    "l": 38.235
  },
  "oklch": {
    "l": 0.38485,
    "c": 0.16237,
    "h": 272.5
  },
  "luminance": 0.05148
}

Semantic roles & 50–950 ramp

primary

#2B3398

secondary

#BBB564

accent

#D449DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B3398

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

Preview Lab → · Contrast checker → · Palette generator →