#2B3BB9#2B3BB9

#2B3BB9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.196 H 269.8°. Best body text is #FFFFFF at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#2B3BB9
RGB	rgb(43, 59, 185)
HSL	hsl(233, 62%, 45%)
HSV	hsv(233, 77%, 73%)
CMYK	cmyk(76.8%, 68.1%, 0%, 27.5%)
CIE-LAB	lab(32.13, 38.50, -67.81)
CIE-LCH	lch(32.13, 77.98, 299.59°)
OKLab	oklab(43.05% -0.0006 -0.1963)
OKLCH	oklch(43.05% 0.196 269.8)
XYZ	xyz(11.3142, 7.1431, 46.6720)
Luminance	0.0714 (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

#2B3BB9 #B9A92B

analogous

#2B82B9 #2B3BB9 #622BB9

triadic

#2B3BB9 #B92B3B #3BB92B

tetradic

#2B3BB9 #B92B82 #B9A92B #2BB962

square

#2B3BB9 #B92B82 #B9A92B #2BB962

split-complementary

#2B3BB9 #B9622B #82B92B

monochromatic

#141B56 #1F2B87 #2B3BB9 #4C5BD5 #7E89E1

Accessibility & contrast

On white

8.65

#2B3BB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.43

#2B3BB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3BB9

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3BB9	#FFFFFF	#000000	##FFFFFF
##2B3BB9	1.00	8.65	2.43	8.65
#FFFFFF	8.65	1.00	21.00	1.00
#000000	2.43	21.00	1.00	21.00
##FFFFFF	8.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BD

Deuteranopia (green-blind)

#0045B7

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #2b3bb9;
/* rgb */ color: rgb(43, 59, 185);
/* oklch */ color: oklch(43.0% 0.196 269.8);

Tailwind

colors: {
  custom: {
    50: '#7b71cf',
    500: '#2b3bb9',
    950: '#000000',
  },
}

SCSS

$custom: #2b3bb9;
$custom-light: #7b71cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3bb9",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 185
  },
  "hsl": {
    "h": 233.239,
    "s": 62.281,
    "l": 44.706
  },
  "oklch": {
    "l": 0.4305,
    "c": 0.19629,
    "h": 269.8
  },
  "luminance": 0.07144
}

Semantic roles & 50–950 ramp

primary

#2B3BB9

secondary

#C9C076

accent

#D342E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B3BB9

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

Preview Lab → · Contrast checker → · Palette generator →