#2B33A6#2B33A6

#2B33A6 is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.8% C 0.181 H 271.8°. Best body text is #FFFFFF at 9.87:1 contrast (WCAG AA passes).

Color values

HEX	#2B33A6
RGB	rgb(43, 51, 166)
HSL	hsl(236, 59%, 41%)
HSV	hsv(236, 74%, 65%)
CMYK	cmyk(74.1%, 69.3%, 0%, 34.9%)
CIE-LAB	lab(28.47, 36.73, -62.49)
CIE-LCH	lch(28.47, 72.49, 300.45°)
OKLab	oklab(39.84% 0.0058 -0.1808)
OKLCH	oklch(39.84% 0.181 271.8)
XYZ	xyz(9.0607, 5.6335, 36.6789)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B33A6 #A69E2B

analogous

#2B70A6 #2B33A6 #602BA6

triadic

#2B33A6 #A62B33 #33A62B

tetradic

#2B33A6 #A62B70 #A69E2B #2BA660

square

#2B33A6 #A62B70 #A69E2B #2BA660

split-complementary

#2B33A6 #A6602B #70A62B

monochromatic

#121545 #1E2475 #2B33A6 #414ACE #7178DA

Accessibility & contrast

On white

9.87

#2B33A6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2B33A6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B33A6

9.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B33A6	#FFFFFF	#000000	##FFFFFF
##2B33A6	1.00	9.87	2.13	9.87
#FFFFFF	9.87	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AA

Deuteranopia (green-blind)

#003DA4

Tritanopia (blue-blind)

#005268

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b33a6;
/* rgb */ color: rgb(43, 51, 166);
/* oklch */ color: oklch(39.8% 0.181 271.8);

Tailwind

colors: {
  custom: {
    50: '#786bc2',
    500: '#2b33a6',
    950: '#000000',
  },
}

SCSS

$custom: #2b33a6;
$custom-light: #786bc2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b33a6",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 166
  },
  "hsl": {
    "h": 236.098,
    "s": 58.852,
    "l": 40.98
  },
  "oklch": {
    "l": 0.39844,
    "c": 0.18085,
    "h": 271.8
  },
  "luminance": 0.05634
}

Semantic roles & 50–950 ramp

primary

#2B33A6

secondary

#C1BC6B

accent

#D846E2

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0612

muted

#7C7A81

Preview Lab

Preview with #2B33A6

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

Preview Lab → · Contrast checker → · Palette generator →