#2B3684#2B3684

#2B3684 is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.3% C 0.131 H 272.3°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#2B3684
RGB	rgb(43, 54, 132)
HSL	hsl(233, 51%, 34%)
HSV	hsv(233, 67%, 52%)
CMYK	cmyk(67.4%, 59.1%, 0%, 48.2%)
CIE-LAB	lab(26.21, 22.32, -45.32)
CIE-LCH	lch(26.21, 50.52, 296.22°)
OKLab	oklab(37.26% 0.0053 -0.1304)
OKLCH	oklch(37.26% 0.131 272.3)
XYZ	xyz(6.4789, 4.8173, 22.4137)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3684 #84792B

analogous

#2B6384 #2B3684 #4D2B84

triadic

#2B3684 #842B36 #36842B

tetradic

#2B3684 #842B63 #84792B #2B844D

square

#2B3684 #842B63 #84792B #2B844D

split-complementary

#2B3684 #844D2B #63842B

monochromatic

#0D1028 #1C2356 #2B3684 #3A49B2 #5F6CCB

Accessibility & contrast

On white

10.69

#2B3684 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#2B3684 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3684

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3684	#FFFFFF	#000000	##FFFFFF
##2B3684	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004287

Deuteranopia (green-blind)

#003A82

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #2b3684;
/* rgb */ color: rgb(43, 54, 132);
/* oklch */ color: oklch(37.3% 0.131 272.3);

Tailwind

colors: {
  custom: {
    50: '#6f6ca8',
    500: '#2b3684',
    950: '#000000',
  },
}

SCSS

$custom: #2b3684;
$custom-light: #6f6ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3684",
  "rgb": {
    "r": 43,
    "g": 54,
    "b": 132
  },
  "hsl": {
    "h": 232.584,
    "s": 50.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37256,
    "c": 0.13051,
    "h": 272.3
  },
  "luminance": 0.04818
}

Semantic roles & 50–950 ramp

primary

#2B3684

secondary

#B1A65A

accent

#C94DDA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #2B3684

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

Preview Lab → · Contrast checker → · Palette generator →