#2B3370#2B3370

#2B3370 is a dark, moderate blue. Relative luminance 0.041; OKLCH L 35.0% C 0.105 H 274.1°. Best body text is #FFFFFF at 11.60:1 contrast (WCAG AA passes).

Color values

HEX	#2B3370
RGB	rgb(43, 51, 112)
HSL	hsl(233, 45%, 30%)
HSV	hsv(233, 62%, 44%)
CMYK	cmyk(61.6%, 54.5%, 0%, 56.1%)
CIE-LAB	lab(23.84, 16.92, -36.50)
CIE-LCH	lch(23.84, 40.23, 294.87°)
OKLab	oklab(34.99% 0.0074 -0.1045)
OKLCH	oklch(34.99% 0.105 274.1)
XYZ	xyz(5.1038, 4.0507, 15.8390)
Luminance	0.0405 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3370 #70682B

analogous

#2B5670 #2B3370 #452B70

triadic

#2B3370 #702B33 #33702B

tetradic

#2B3370 #702B56 #70682B #2B7045

square

#2B3370 #702B56 #70682B #2B7045

split-complementary

#2B3370 #70452B #56702B

monochromatic

#090B18 #1A1F44 #2B3370 #3C479C #5763BE

Accessibility & contrast

On white

11.60

#2B3370 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.81

#2B3370 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3370

11.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3370	#FFFFFF	#000000	##FFFFFF
##2B3370	1.00	11.60	1.81	11.60
#FFFFFF	11.60	1.00	21.00	1.00
#000000	1.81	21.00	1.00	21.00
##FFFFFF	11.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#103C72

Deuteranopia (green-blind)

#01366F

Tritanopia (blue-blind)

#00414C

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #2b3370;
/* rgb */ color: rgb(43, 51, 112);
/* oklch */ color: oklch(35.0% 0.105 274.1);

Tailwind

colors: {
  custom: {
    50: '#6b6a99',
    500: '#2b3370',
    950: '#000000',
  },
}

SCSS

$custom: #2b3370;
$custom-light: #6b6a99;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3370",
  "rgb": {
    "r": 43,
    "g": 51,
    "b": 112
  },
  "hsl": {
    "h": 233.043,
    "s": 44.516,
    "l": 30.392
  },
  "oklch": {
    "l": 0.34995,
    "c": 0.10474,
    "h": 274.1
  },
  "luminance": 0.04051
}

Semantic roles & 50–950 ramp

primary

#2B3370

secondary

#A29955

accent

#C554D4

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #2B3370

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

Preview Lab → · Contrast checker → · Palette generator →