#2B3BB7#2B3BB7

#2B3BB7 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.9% C 0.194 H 269.9°. Best body text is #FFFFFF at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#2B3BB7
RGB	rgb(43, 59, 183)
HSL	hsl(233, 62%, 44%)
HSV	hsv(233, 77%, 72%)
CMYK	cmyk(76.5%, 67.8%, 0%, 28.2%)
CIE-LAB	lab(31.94, 37.79, -66.94)
CIE-LCH	lch(31.94, 76.87, 299.44°)
OKLab	oklab(42.86% -0.0004 -0.1937)
OKLCH	oklch(42.86% 0.194 269.9)
XYZ	xyz(11.1045, 7.0592, 45.5679)
Luminance	0.0706 (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

#2B3BB7 #B7A72B

analogous

#2B81B7 #2B3BB7 #612BB7

triadic

#2B3BB7 #B72B3B #3BB72B

tetradic

#2B3BB7 #B72B81 #B7A72B #2BB761

square

#2B3BB7 #B72B81 #B7A72B #2BB761

split-complementary

#2B3BB7 #B7612B #81B72B

monochromatic

#141B54 #1F2B85 #2B3BB7 #4B5AD5 #7C88E0

Accessibility & contrast

On white

8.71

#2B3BB7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.41

#2B3BB7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3BB7

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3BB7	#FFFFFF	#000000	##FFFFFF
##2B3BB7	1.00	8.71	2.41	8.71
#FFFFFF	8.71	1.00	21.00	1.00
#000000	2.41	21.00	1.00	21.00
##FFFFFF	8.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BB

Deuteranopia (green-blind)

#0044B5

Tritanopia (blue-blind)

#005D74

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2b3bb7;
/* rgb */ color: rgb(43, 59, 183);
/* oklch */ color: oklch(42.9% 0.194 269.9);

Tailwind

colors: {
  custom: {
    50: '#7b71ce',
    500: '#2b3bb7',
    950: '#000000',
  },
}

SCSS

$custom: #2b3bb7;
$custom-light: #7b71ce;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3bb7",
  "rgb": {
    "r": 43,
    "g": 59,
    "b": 183
  },
  "hsl": {
    "h": 233.143,
    "s": 61.947,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42855,
    "c": 0.19374,
    "h": 269.9
  },
  "luminance": 0.0706
}

Semantic roles & 50–950 ramp

primary

#2B3BB7

secondary

#C9BF75

accent

#D243E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2B3BB7

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

Preview Lab → · Contrast checker → · Palette generator →