#2B3397#2B3397

#2B3397 is a dark, vivid blue. Relative luminance 0.051; OKLCH L 38.4% C 0.161 H 272.6°. Best body text is #FFFFFF at 10.38:1 contrast (WCAG AA passes).

Color values

HEX	#2B3397
RGB	rgb(43, 51, 151)
HSL	hsl(236, 56%, 38%)
HSV	hsv(236, 72%, 59%)
CMYK	cmyk(71.5%, 66.2%, 0%, 40.8%)
CIE-LAB	lab(27.06, 31.35, -55.68)
CIE-LCH	lch(27.06, 63.90, 299.38°)
OKLab	oklab(38.39% 0.0072 -0.1608)
OKLCH	oklch(38.39% 0.161 272.6)
XYZ	xyz(7.7641, 5.1149, 29.8502)
Luminance	0.0512 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3397 #978F2B

analogous

#2B6997 #2B3397 #592B97

triadic

#2B3397 #972B33 #33972B

tetradic

#2B3397 #972B69 #978F2B #2B9759

square

#2B3397 #972B69 #978F2B #2B9759

split-complementary

#2B3397 #97592B #69972B

monochromatic

#101338 #1D2367 #2B3397 #3943C7 #6870D4

Accessibility & contrast

On white

10.38

#2B3397 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.02

#2B3397 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3397

10.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3397	#FFFFFF	#000000	##FFFFFF
##2B3397	1.00	10.38	2.02	10.38
#FFFFFF	10.38	1.00	21.00	1.00
#000000	2.02	21.00	1.00	21.00
##FFFFFF	10.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00459A

Deuteranopia (green-blind)

#003B95

Tritanopia (blue-blind)

#004D60

Achromatopsia (no color)

#404040

Design tokens & code

CSS

--color: #2b3397;
/* rgb */ color: rgb(43, 51, 151);
/* oklch */ color: oklch(38.4% 0.161 272.6);

Tailwind

colors: {
  custom: {
    50: '#746bb7',
    500: '#2b3397',
    950: '#000000',
  },
}

SCSS

$custom: #2b3397;
$custom-light: #746bb7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3397",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 151
  },
  "hsl": {
    "h": 235.556,
    "s": 55.67,
    "l": 38.039
  },
  "oklch": {
    "l": 0.3839,
    "c": 0.16101,
    "h": 272.6
  },
  "luminance": 0.05116
}

Semantic roles & 50–950 ramp

primary

#2B3397

secondary

#BBB463

accent

#D449DF

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B3397

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

Preview Lab → · Contrast checker → · Palette generator →