#2B4FB3#2B4FB3

#2B4FB3 is a mid, vivid blue. Relative luminance 0.094; OKLCH L 46.3% C 0.164 H 265.4°. Best body text is #FFFFFF at 7.31:1 contrast (WCAG AA passes).

Color values

HEX	#2B4FB3
RGB	rgb(43, 79, 179)
HSL	hsl(224, 61%, 44%)
HSV	hsv(224, 76%, 70%)
CMYK	cmyk(76%, 55.9%, 0%, 29.8%)
CIE-LAB	lab(36.67, 23.31, -56.85)
CIE-LCH	lch(36.67, 61.45, 292.29°)
OKLab	oklab(46.25% -0.0133 -0.164)
OKLCH	oklch(46.25% 0.164 265.4)
XYZ	xyz(11.9261, 9.3589, 43.8170)
Luminance	0.0936 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4FB3 #B38F2B

analogous

#2B93B3 #2B4FB3 #4B2BB3

triadic

#2B4FB3 #B32B4F #4FB32B

tetradic

#2B4FB3 #B32B93 #B38F2B #2BB34B

square

#2B4FB3 #B32B93 #B38F2B #2BB34B

split-complementary

#2B4FB3 #B34B2B #93B32B

monochromatic

#132350 #1F3982 #2B4FB3 #486DD3 #7994DF

Accessibility & contrast

On white

7.31

#2B4FB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.87

#2B4FB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4FB3

7.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4FB3	#FFFFFF	#000000	##FFFFFF
##2B4FB3	1.00	7.31	2.87	7.31
#FFFFFF	7.31	1.00	21.00	1.00
#000000	2.87	21.00	1.00	21.00
##FFFFFF	7.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005DB6

Deuteranopia (green-blind)

#0050B1

Tritanopia (blue-blind)

#006879

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #2b4fb3;
/* rgb */ color: rgb(43, 79, 179);
/* oklch */ color: oklch(46.3% 0.164 265.4);

Tailwind

colors: {
  custom: {
    50: '#787fca',
    500: '#2b4fb3',
    950: '#000000',
  },
}

SCSS

$custom: #2b4fb3;
$custom-light: #787fca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4fb3",
  "rgb": {
    "r": 43,
    "g": 79,
    "b": 179
  },
  "hsl": {
    "h": 224.118,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.46251,
    "c": 0.16449,
    "h": 265.4
  },
  "luminance": 0.0936
}

Semantic roles & 50–950 ramp

primary

#2B4FB3

secondary

#C7B173

accent

#BA43E4

background

#F8F7FC

surface

#EFEEF8

border

#CAC9D1

text

#0A0A13

muted

#7C7C82

Preview Lab

Preview with #2B4FB3

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

Preview Lab → · Contrast checker → · Palette generator →