#2B3AB1#2B3AB1

#2B3AB1 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 42.1% C 0.187 H 270.2°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AB1
RGB	rgb(43, 58, 177)
HSL	hsl(233, 61%, 43%)
HSV	hsv(233, 76%, 69%)
CMYK	cmyk(75.7%, 67.2%, 0%, 30.6%)
CIE-LAB	lab(31.14, 36.27, -64.69)
CIE-LCH	lch(31.14, 74.16, 299.28°)
OKLab	oklab(42.1% 0.0007 -0.1872)
OKLCH	oklch(42.1% 0.187 270.2)
XYZ	xyz(10.4424, 6.7129, 42.3318)
Luminance	0.0671 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3AB1 #B1A22B

analogous

#2B7DB1 #2B3AB1 #5F2BB1

triadic

#2B3AB1 #B12B3A #3AB12B

tetradic

#2B3AB1 #B12B7D #B1A22B #2BB15F

square

#2B3AB1 #B12B7D #B1A22B #2BB15F

split-complementary

#2B3AB1 #B15F2B #7DB12B

monochromatic

#131A4F #1F2A80 #2B3AB1 #4757D2 #7884DE

Accessibility & contrast

On white

8.96

#2B3AB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#2B3AB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AB1

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AB1	#FFFFFF	#000000	##FFFFFF
##2B3AB1	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B5

Deuteranopia (green-blind)

#0043AF

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b3ab1;
/* rgb */ color: rgb(43, 58, 177);
/* oklch */ color: oklch(42.1% 0.187 270.2);

Tailwind

colors: {
  custom: {
    50: '#7a70c9',
    500: '#2b3ab1',
    950: '#000000',
  },
}

SCSS

$custom: #2b3ab1;
$custom-light: #7a70c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3ab1",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 177
  },
  "hsl": {
    "h": 233.284,
    "s": 60.909,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42104,
    "c": 0.18716,
    "h": 270.2
  },
  "luminance": 0.06714
}

Semantic roles & 50–950 ramp

primary

#2B3AB1

secondary

#C6BD72

accent

#D244E4

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B3AB1

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

Preview Lab → · Contrast checker → · Palette generator →