#2B3AB4#2B3AB4

#2B3AB4 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.4% C 0.191 H 270.1°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B3AB4
RGB	rgb(43, 58, 180)
HSL	hsl(233, 61%, 44%)
HSV	hsv(233, 76%, 71%)
CMYK	cmyk(76.1%, 67.8%, 0%, 29.4%)
CIE-LAB	lab(31.43, 37.34, -66.01)
CIE-LCH	lch(31.43, 75.84, 299.50°)
OKLab	oklab(42.39% 0.0004 -0.191)
OKLCH	oklch(42.39% 0.191 270.1)
XYZ	xyz(10.7447, 6.8338, 43.9240)
Luminance	0.0683 (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

#2B3AB4 #B4A52B

analogous

#2B7EB4 #2B3AB4 #602BB4

triadic

#2B3AB4 #B42B3A #3AB42B

tetradic

#2B3AB4 #B42B7E #B4A52B #2BB460

square

#2B3AB4 #B42B7E #B4A52B #2BB460

split-complementary

#2B3AB4 #B4602B #7EB42B

monochromatic

#131A51 #1F2A83 #2B3AB4 #4958D3 #7A85DF

Accessibility & contrast

On white

8.87

#2B3AB4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2B3AB4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3AB4

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3AB4	#FFFFFF	#000000	##FFFFFF
##2B3AB4	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B8

Deuteranopia (green-blind)

#0043B2

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b3ab4;
/* rgb */ color: rgb(43, 58, 180);
/* oklch */ color: oklch(42.4% 0.191 270.1);

Tailwind

colors: {
  custom: {
    50: '#7a70cc',
    500: '#2b3ab4',
    950: '#000000',
  },
}

SCSS

$custom: #2b3ab4;
$custom-light: #7a70cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3ab4",
  "rgb": {
    "r": 43,
    "g": 58,
    "b": 180
  },
  "hsl": {
    "h": 233.431,
    "s": 61.435,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42394,
    "c": 0.19102,
    "h": 270.1
  },
  "luminance": 0.06835
}

Semantic roles & 50–950 ramp

primary

#2B3AB4

secondary

#C7BE73

accent

#D343E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B3AB4

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

Preview Lab → · Contrast checker → · Palette generator →