#2B3387#2B3387

#2B3387 is a dark, vivid blue. Relative luminance 0.046; OKLCH L 36.9% C 0.139 H 273.3°. Best body text is #FFFFFF at 10.90:1 contrast (WCAG AA passes).

Color values

HEX	#2B3387
RGB	rgb(43, 51, 135)
HSL	hsl(235, 52%, 35%)
HSV	hsv(235, 68%, 53%)
CMYK	cmyk(68.1%, 62.2%, 0%, 47.1%)
CIE-LAB	lab(25.65, 25.47, -48.09)
CIE-LCH	lch(25.65, 54.42, 297.91°)
OKLab	oklab(36.92% 0.0081 -0.1386)
OKLCH	oklch(36.92% 0.139 273.3)
XYZ	xyz(6.5518, 4.6299, 23.4654)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3387 #877F2B

analogous

#2B6187 #2B3387 #512B87

triadic

#2B3387 #872B33 #33872B

tetradic

#2B3387 #872B61 #877F2B #2B8751

square

#2B3387 #872B61 #877F2B #2B8751

split-complementary

#2B3387 #87512B #61872B

monochromatic

#0D102A #1C2159 #2B3387 #3A45B5 #6069CC

Accessibility & contrast

On white

10.90

#2B3387 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#2B3387 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3387

10.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3387	#FFFFFF	#000000	##FFFFFF
##2B3387	1.00	10.90	1.93	10.90
#FFFFFF	10.90	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.90	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00418A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004858

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b3387;
/* rgb */ color: rgb(43, 51, 135);
/* oklch */ color: oklch(36.9% 0.139 273.3);

Tailwind

colors: {
  custom: {
    50: '#706aab',
    500: '#2b3387',
    950: '#000000',
  },
}

SCSS

$custom: #2b3387;
$custom-light: #706aab;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3387",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 135
  },
  "hsl": {
    "h": 234.783,
    "s": 51.685,
    "l": 34.902
  },
  "oklch": {
    "l": 0.36921,
    "c": 0.13881,
    "h": 273.3
  },
  "luminance": 0.04631
}

Semantic roles & 50–950 ramp

primary

#2B3387

secondary

#B2AB5B

accent

#CF4DDB

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2B3387

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

Preview Lab → · Contrast checker → · Palette generator →