#2B3191#2B3191

#2B3191 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.5% C 0.155 H 273.4°. Best body text is #FFFFFF at 10.76:1 contrast (WCAG AA passes).

Color values

HEX	#2B3191
RGB	rgb(43, 49, 145)
HSL	hsl(236, 54%, 37%)
HSV	hsv(236, 70%, 57%)
CMYK	cmyk(70.3%, 66.2%, 0%, 43.1%)
CIE-LAB	lab(26.02, 30.47, -53.69)
CIE-LCH	lch(26.02, 61.74, 299.57°)
OKLab	oklab(37.46% 0.0092 -0.155)
OKLCH	oklch(37.46% 0.155 273.4)
XYZ	xyz(7.2037, 4.7539, 27.3205)
Luminance	0.0476 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3191 #918B2B

analogous

#2B6491 #2B3191 #582B91

triadic

#2B3191 #912B31 #31912B

tetradic

#2B3191 #912B64 #918B2B #2B9158

square

#2B3191 #912B64 #918B2B #2B9158

split-complementary

#2B3191 #91582B #64912B

monochromatic

#0F1133 #1D2162 #2B3191 #3941C0 #656BD1

Accessibility & contrast

On white

10.76

#2B3191 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B3191 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3191

10.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3191	#FFFFFF	#000000	##FFFFFF
##2B3191	1.00	10.76	1.95	10.76
#FFFFFF	10.76	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004294

Deuteranopia (green-blind)

#00398F

Tritanopia (blue-blind)

#004A5C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b3191;
/* rgb */ color: rgb(43, 49, 145);
/* oklch */ color: oklch(37.5% 0.155 273.4);

Tailwind

colors: {
  custom: {
    50: '#7369b2',
    500: '#2b3191',
    950: '#000000',
  },
}

SCSS

$custom: #2b3191;
$custom-light: #7369b2;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3191",
  "rgb": {
    "r": 43,
    "g": 49,
    "b": 145
  },
  "hsl": {
    "h": 236.471,
    "s": 54.255,
    "l": 36.863
  },
  "oklch": {
    "l": 0.37464,
    "c": 0.1553,
    "h": 273.4
  },
  "luminance": 0.04755
}

Semantic roles & 50–950 ramp

primary

#2B3191

secondary

#B8B260

accent

#D54ADE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #2B3191

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

Preview Lab → · Contrast checker → · Palette generator →