#2B4BB4#2B4BB4

#2B4BB4 is a mid, vivid blue. Relative luminance 0.088; OKLCH L 45.5% C 0.171 H 266.5°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#2B4BB4
RGB	rgb(43, 75, 180)
HSL	hsl(226, 61%, 44%)
HSV	hsv(226, 76%, 71%)
CMYK	cmyk(76.1%, 58.3%, 0%, 29.4%)
CIE-LAB	lab(35.67, 26.33, -59.06)
CIE-LCH	lch(35.67, 64.66, 294.03°)
OKLab	oklab(45.53% -0.0103 -0.1705)
OKLCH	oklch(45.53% 0.171 266.5)
XYZ	xyz(11.7477, 8.8397, 44.2583)
Luminance	0.0884 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4BB4 #B4942B

analogous

#2B8FB4 #2B4BB4 #4F2BB4

triadic

#2B4BB4 #B42B4B #4BB42B

tetradic

#2B4BB4 #B42B8F #B4942B #2BB44F

square

#2B4BB4 #B42B8F #B4942B #2BB44F

split-complementary

#2B4BB4 #B44F2B #8FB42B

monochromatic

#132251 #1F3683 #2B4BB4 #4969D3 #7A92DF

Accessibility & contrast

On white

7.59

#2B4BB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#2B4BB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4BB4

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4BB4	#FFFFFF	#000000	##FFFFFF
##2B4BB4	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AB8

Deuteranopia (green-blind)

#004EB2

Tritanopia (blue-blind)

#006578

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #2b4bb4;
/* rgb */ color: rgb(43, 75, 180);
/* oklch */ color: oklch(45.5% 0.171 266.5);

Tailwind

colors: {
  custom: {
    50: '#797ccb',
    500: '#2b4bb4',
    950: '#000000',
  },
}

SCSS

$custom: #2b4bb4;
$custom-light: #797ccb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4bb4",
  "rgb": {
    "r": 43,
    "g": 75,
    "b": 180
  },
  "hsl": {
    "h": 225.985,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.4553,
    "c": 0.1708,
    "h": 266.5
  },
  "luminance": 0.08841
}

Semantic roles & 50–950 ramp

primary

#2B4BB4

secondary

#C7B473

accent

#BF43E5

background

#F8F7FC

surface

#EFEEF9

border

#CAC9D2

text

#0A0913

muted

#7C7B82

Preview Lab

Preview with #2B4BB4

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

Preview Lab → · Contrast checker → · Palette generator →