#2B4B9A#2B4B9A

#2B4B9A is a dark, vivid blue. Relative luminance 0.079; OKLCH L 43.4% C 0.135 H 264.8°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#2B4B9A
RGB	rgb(43, 75, 154)
HSL	hsl(223, 56%, 39%)
HSV	hsv(223, 72%, 60%)
CMYK	cmyk(72.1%, 51.3%, 0%, 39.6%)
CIE-LAB	lab(33.73, 16.41, -46.67)
CIE-LCH	lch(33.73, 49.47, 289.38°)
OKLab	oklab(43.45% -0.0123 -0.1341)
OKLCH	oklch(43.45% 0.135 264.8)
XYZ	xyz(9.3430, 7.8779, 31.5938)
Luminance	0.0788 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4B9A #9A7A2B

analogous

#2B829A #2B4B9A #422B9A

triadic

#2B4B9A #9A2B4B #4B9A2B

tetradic

#2B4B9A #9A2B82 #9A7A2B #2B9A42

square

#2B4B9A #9A2B82 #9A7A2B #2B9A42

split-complementary

#2B4B9A #9A422B #829A2B

monochromatic

#101C3A #1E346A #2B4B9A #3A63C8 #6A89D5

Accessibility & contrast

On white

8.15

#2B4B9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#2B4B9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4B9A

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4B9A	#FFFFFF	#000000	##FFFFFF
##2B4B9A	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C559D

Deuteranopia (green-blind)

#004A98

Tritanopia (blue-blind)

#005E6B

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #2b4b9a;
/* rgb */ color: rgb(43, 75, 154);
/* oklch */ color: oklch(43.4% 0.135 264.8);

Tailwind

colors: {
  custom: {
    50: '#737cb8',
    500: '#2b4b9a',
    950: '#000000',
  },
}

SCSS

$custom: #2b4b9a;
$custom-light: #737cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4b9a",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 154
  },
  "hsl": {
    "h": 222.703,
    "s": 56.345,
    "l": 38.627
  },
  "oklch": {
    "l": 0.43446,
    "c": 0.13462,
    "h": 264.8
  },
  "luminance": 0.07879
}

Semantic roles & 50–950 ramp

primary

#2B4B9A

secondary

#BCA365

accent

#B448E0

background

#F7F7FB

surface

#EDEEF6

border

#C8C9D0

text

#090911

muted

#7B7B80

Preview Lab

Preview with #2B4B9A

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

Preview Lab → · Contrast checker → · Palette generator →