#2B379B#2B379B

#2B379B is a dark, vivid blue. Relative luminance 0.056; OKLCH L 39.5% C 0.162 H 271.5°. Best body text is #FFFFFF at 9.89:1 contrast (WCAG AA passes).

Color values

HEX	#2B379B
RGB	rgb(43, 55, 155)
HSL	hsl(234, 57%, 39%)
HSV	hsv(234, 72%, 61%)
CMYK	cmyk(72.3%, 64.5%, 0%, 39.2%)
CIE-LAB	lab(28.41, 30.20, -55.92)
CIE-LCH	lch(28.41, 63.55, 298.37°)
OKLab	oklab(39.49% 0.0041 -0.1615)
OKLCH	oklch(39.49% 0.162 271.5)
XYZ	xyz(8.2768, 5.6117, 31.6510)
Luminance	0.0561 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B379B #9B8F2B

analogous

#2B6F9B #2B379B #572B9B

triadic

#2B379B #9B2B37 #379B2B

tetradic

#2B379B #9B2B6F #9B8F2B #2B9B57

square

#2B379B #9B2B6F #9B8F2B #2B9B57

split-complementary

#2B379B #9B572B #6F9B2B

monochromatic

#10153B #1E266B #2B379B #3B4AC9 #6B76D6

Accessibility & contrast

On white

9.89

#2B379B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.12

#2B379B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B379B

9.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B379B	#FFFFFF	#000000	##FFFFFF
##2B379B	1.00	9.89	2.12	9.89
#FFFFFF	9.89	1.00	21.00	1.00
#000000	2.12	21.00	1.00	21.00
##FFFFFF	9.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00489E

Deuteranopia (green-blind)

#003E99

Tritanopia (blue-blind)

#005164

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2b379b;
/* rgb */ color: rgb(43, 55, 155);
/* oklch */ color: oklch(39.5% 0.162 271.5);

Tailwind

colors: {
  custom: {
    50: '#756eb9',
    500: '#2b379b',
    950: '#000000',
  },
}

SCSS

$custom: #2b379b;
$custom-light: #756eb9;
$custom-dark: #000000;

JSON

{
  "hex": "#2b379b",
  "rgb": {
    "r": 43,
    "g": 55,
    "b": 155
  },
  "hsl": {
    "h": 233.571,
    "s": 56.566,
    "l": 38.824
  },
  "oklch": {
    "l": 0.39491,
    "c": 0.16155,
    "h": 271.5
  },
  "luminance": 0.05613
}

Semantic roles & 50–950 ramp

primary

#2B379B

secondary

#BCB365

accent

#D048E0

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #2B379B

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

Preview Lab → · Contrast checker → · Palette generator →