#2B3AB3#2B3AB3

#2B3AB3 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.190 H 270.2°. Best body text is #FFFFFF at 8.90:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AB3
RGB	rgb(43, 58, 179)
HSL	hsl(233, 61%, 44%)
HSV	hsv(233, 76%, 70%)
CMYK	cmyk(76%, 67.6%, 0%, 29.8%)
CIE-LAB	lab(31.33, 36.98, -65.57)
CIE-LCH	lch(31.33, 75.28, 299.42°)
OKLab	oklab(42.3% 0.0005 -0.1897)
OKLCH	oklch(42.3% 0.19 270.2)
XYZ	xyz(10.6432, 6.7932, 43.3894)
Luminance	0.0679 (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

#2B3AB3 #B3A42B

analogous

#2B7EB3 #2B3AB3 #602BB3

triadic

#2B3AB3 #B32B3A #3AB32B

tetradic

#2B3AB3 #B32B7E #B3A42B #2BB360

square

#2B3AB3 #B32B7E #B3A42B #2BB360

split-complementary

#2B3AB3 #B3602B #7EB32B

monochromatic

#131A50 #1F2A82 #2B3AB3 #4857D3 #7985DF

Accessibility & contrast

On white

8.90

#2B3AB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#2B3AB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AB3

8.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AB3	#FFFFFF	#000000	##FFFFFF
##2B3AB3	1.00	8.90	2.36	8.90
#FFFFFF	8.90	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B7

Deuteranopia (green-blind)

#0043B1

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b3ab3;
/* rgb */ color: rgb(43, 58, 179);
/* oklch */ color: oklch(42.3% 0.190 270.2);

Tailwind

colors: {
  custom: {
    50: '#7a70cb',
    500: '#2b3ab3',
    950: '#000000',
  },
}

SCSS

$custom: #2b3ab3;
$custom-light: #7a70cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3ab3",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 179
  },
  "hsl": {
    "h": 233.382,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.42297,
    "c": 0.18974,
    "h": 270.2
  },
  "luminance": 0.06794
}

Semantic roles & 50–950 ramp

primary

#2B3AB3

secondary

#C7BE73

accent

#D343E4

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B3AB3

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

Preview Lab → · Contrast checker → · Palette generator →