#2B3584#2B3584

#2B3584 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 37.1% C 0.132 H 272.7°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#2B3584
RGB	rgb(43, 53, 132)
HSL	hsl(233, 51%, 34%)
HSV	hsv(233, 67%, 52%)
CMYK	cmyk(67.4%, 59.8%, 0%, 48.2%)
CIE-LAB	lab(25.94, 23.00, -45.76)
CIE-LCH	lch(25.94, 51.21, 296.69°)
OKLab	oklab(37.05% 0.0063 -0.1317)
OKLCH	oklch(37.05% 0.132 272.7)
XYZ	xyz(6.4328, 4.7252, 22.3984)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3584 #847A2B

analogous

#2B6284 #2B3584 #4E2B84

triadic

#2B3584 #842B35 #35842B

tetradic

#2B3584 #842B62 #847A2B #2B844E

square

#2B3584 #842B62 #847A2B #2B844E

split-complementary

#2B3584 #844E2B #62842B

monochromatic

#0D1028 #1C2256 #2B3584 #3A48B2 #5F6BCB

Accessibility & contrast

On white

10.80

#2B3584 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#2B3584 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3584

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3584	#FFFFFF	#000000	##FFFFFF
##2B3584	1.00	10.80	1.95	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004187

Deuteranopia (green-blind)

#003A82

Tritanopia (blue-blind)

#004857

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #2b3584;
/* rgb */ color: rgb(43, 53, 132);
/* oklch */ color: oklch(37.1% 0.132 272.7);

Tailwind

colors: {
  custom: {
    50: '#6f6ca8',
    500: '#2b3584',
    950: '#000000',
  },
}

SCSS

$custom: #2b3584;
$custom-light: #6f6ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3584",
  "rgb": {
    "r": 43,
    "g": 53,
    "b": 132
  },
  "hsl": {
    "h": 233.258,
    "s": 50.857,
    "l": 34.314
  },
  "oklch": {
    "l": 0.37054,
    "c": 0.13185,
    "h": 272.7
  },
  "luminance": 0.04726
}

Semantic roles & 50–950 ramp

primary

#2B3584

secondary

#B1A75A

accent

#CB4DDA

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #2B3584

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

Preview Lab → · Contrast checker → · Palette generator →