#2B3BB2#2B3BB2

#2B3BB2 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.187 H 270.0°. Best body text is #FFFFFF at 8.86:1 contrast (WCAG AA passes).

Color values

HEX	#2B3BB2
RGB	rgb(43, 59, 178)
HSL	hsl(233, 61%, 43%)
HSV	hsv(233, 76%, 70%)
CMYK	cmyk(75.8%, 66.9%, 0%, 30.2%)
CIE-LAB	lab(31.47, 35.99, -64.74)
CIE-LCH	lch(31.47, 74.07, 299.07°)
OKLab	oklab(42.37% 0 -0.1873)
OKLCH	oklch(42.37% 0.187 270)
XYZ	xyz(10.5934, 6.8547, 42.8756)
Luminance	0.0686 (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

#2B3BB2 #B2A22B

analogous

#2B7EB2 #2B3BB2 #5E2BB2

triadic

#2B3BB2 #B22B3B #3BB22B

tetradic

#2B3BB2 #B22B7E #B2A22B #2BB25E

square

#2B3BB2 #B22B7E #B2A22B #2BB25E

split-complementary

#2B3BB2 #B25E2B #7EB22B

monochromatic

#131A4F #1F2B81 #2B3BB2 #4858D3 #7985DF

Accessibility & contrast

On white

8.86

#2B3BB2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#2B3BB2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3BB2

8.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3BB2	#FFFFFF	#000000	##FFFFFF
##2B3BB2	1.00	8.86	2.37	8.86
#FFFFFF	8.86	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B6

Deuteranopia (green-blind)

#0044B0

Tritanopia (blue-blind)

#005B71

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2b3bb2;
/* rgb */ color: rgb(43, 59, 178);
/* oklch */ color: oklch(42.4% 0.187 270.0);

Tailwind

colors: {
  custom: {
    50: '#7a71ca',
    500: '#2b3bb2',
    950: '#000000',
  },
}

SCSS

$custom: #2b3bb2;
$custom-light: #7a71ca;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3bb2",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 178
  },
  "hsl": {
    "h": 232.889,
    "s": 61.086,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42373,
    "c": 0.18731,
    "h": 270
  },
  "luminance": 0.06856
}

Semantic roles & 50–950 ramp

primary

#2B3BB2

secondary

#C7BD72

accent

#D144E4

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B3BB2

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

Preview Lab → · Contrast checker → · Palette generator →