#2B33B3#2B33B3

#2B33B3 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 41.2% C 0.197 H 271.2°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#2B33B3
RGB	rgb(43, 51, 179)
HSL	hsl(236, 61%, 44%)
HSV	hsv(236, 76%, 70%)
CMYK	cmyk(76%, 71.5%, 0%, 29.8%)
CIE-LAB	lab(29.75, 41.29, -68.17)
CIE-LCH	lch(29.75, 79.70, 301.20°)
OKLab	oklab(41.16% 0.0042 -0.1973)
OKLCH	oklch(41.16% 0.197 271.2)
XYZ	xyz(10.3140, 6.1348, 43.2796)
Luminance	0.0614 (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

#2B33B3 #B3AB2B

analogous

#2B77B3 #2B33B3 #672BB3

triadic

#2B33B3 #B32B33 #33B32B

tetradic

#2B33B3 #B32B77 #B3AB2B #2BB367

square

#2B33B3 #B32B77 #B3AB2B #2BB367

split-complementary

#2B33B3 #B3672B #77B32B

monochromatic

#131750 #1F2582 #2B33B3 #4850D3 #797FDF

Accessibility & contrast

On white

9.43

#2B33B3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#2B33B3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33B3

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33B3	#FFFFFF	#000000	##FFFFFF
##2B33B3	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DB7

Deuteranopia (green-blind)

#003FB1

Tritanopia (blue-blind)

#00576F

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #2b33b3;
/* rgb */ color: rgb(43, 51, 179);
/* oklch */ color: oklch(41.2% 0.197 271.2);

Tailwind

colors: {
  custom: {
    50: '#7b6bcb',
    500: '#2b33b3',
    950: '#000000',
  },
}

SCSS

$custom: #2b33b3;
$custom-light: #7b6bcb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33b3",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 179
  },
  "hsl": {
    "h": 236.471,
    "s": 61.261,
    "l": 43.529
  },
  "oklch": {
    "l": 0.41155,
    "c": 0.19737,
    "h": 271.2
  },
  "luminance": 0.06136
}

Semantic roles & 50–950 ramp

primary

#2B33B3

secondary

#C7C273

accent

#DB43E4

background

#F8F6FC

surface

#EFEBF9

border

#CAC6D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2B33B3

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

Preview Lab → · Contrast checker → · Palette generator →