#2B4FB1#2B4FB1

#2B4FB1 is a mid, vivid blue. Relative luminance 0.093; OKLCH L 46.1% C 0.162 H 265.2°. Best body text is #FFFFFF at 7.35:1 contrast (WCAG AA passes).

Color values

HEX	#2B4FB1
RGB	rgb(43, 79, 177)
HSL	hsl(224, 61%, 43%)
HSV	hsv(224, 76%, 69%)
CMYK	cmyk(75.7%, 55.4%, 0%, 30.6%)
CIE-LAB	lab(36.52, 22.55, -55.92)
CIE-LCH	lch(36.52, 60.29, 291.96°)
OKLab	oklab(46.09% -0.0134 -0.1612)
OKLCH	oklch(46.09% 0.162 265.2)
XYZ	xyz(11.7253, 9.2786, 42.7594)
Luminance	0.0928 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4FB1 #B18D2B

analogous

#2B92B1 #2B4FB1 #4A2BB1

triadic

#2B4FB1 #B12B4F #4FB12B

tetradic

#2B4FB1 #B12B92 #B18D2B #2BB14A

square

#2B4FB1 #B12B92 #B18D2B #2BB14A

split-complementary

#2B4FB1 #B14A2B #92B12B

monochromatic

#13234F #1F3980 #2B4FB1 #476CD2 #7894DE

Accessibility & contrast

On white

7.35

#2B4FB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.86

#2B4FB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4FB1

7.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4FB1	#FFFFFF	#000000	##FFFFFF
##2B4FB1	1.00	7.35	2.86	7.35
#FFFFFF	7.35	1.00	21.00	1.00
#000000	2.86	21.00	1.00	21.00
##FFFFFF	7.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CB4

Deuteranopia (green-blind)

#0050AF

Tritanopia (blue-blind)

#006778

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2b4fb1;
/* rgb */ color: rgb(43, 79, 177);
/* oklch */ color: oklch(46.1% 0.162 265.2);

Tailwind

colors: {
  custom: {
    50: '#787fc9',
    500: '#2b4fb1',
    950: '#000000',
  },
}

SCSS

$custom: #2b4fb1;
$custom-light: #787fc9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4fb1",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 177
  },
  "hsl": {
    "h": 223.881,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.4609,
    "c": 0.16175,
    "h": 265.2
  },
  "luminance": 0.0928
}

Semantic roles & 50–950 ramp

primary

#2B4FB1

secondary

#C6AF72

accent

#B944E4

background

#F7F7FC

surface

#EEEEF8

border

#C9C9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2B4FB1

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

Preview Lab → · Contrast checker → · Palette generator →