#2B4783#2B4783

#2B4783 is a dark, moderate blue. Relative luminance 0.067; OKLCH L 40.9% C 0.106 H 263.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#2B4783
RGB	rgb(43, 71, 131)
HSL	hsl(221, 51%, 34%)
HSV	hsv(221, 67%, 51%)
CMYK	cmyk(67.2%, 45.8%, 0%, 48.6%)
CIE-LAB	lab(31.02, 10.32, -36.95)
CIE-LCH	lch(31.02, 38.36, 285.60°)
OKLab	oklab(40.88% -0.0119 -0.1055)
OKLCH	oklch(40.88% 0.106 263.6)
XYZ	xyz(7.3448, 6.6581, 22.3664)
Luminance	0.0666 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B4783 #83672B

analogous

#2B7383 #2B4783 #3B2B83

triadic

#2B4783 #832B47 #47832B

tetradic

#2B4783 #832B73 #83672B #2B833B

square

#2B4783 #832B73 #83672B #2B833B

split-complementary

#2B4783 #833B2B #73832B

monochromatic

#0D1527 #1C2E55 #2B4783 #3A60B1 #5E81CA

Accessibility & contrast

On white

9.01

#2B4783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#2B4783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B4783

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B4783	#FFFFFF	#000000	##FFFFFF
##2B4783	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2A4D85

Deuteranopia (green-blind)

#1C4582

Tritanopia (blue-blind)

#00555E

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b4783;
/* rgb */ color: rgb(43, 71, 131);
/* oklch */ color: oklch(40.9% 0.106 263.6);

Tailwind

colors: {
  custom: {
    50: '#6e79a7',
    500: '#2b4783',
    950: '#000000',
  },
}

SCSS

$custom: #2b4783;
$custom-light: #6e79a7;
$custom-dark: #000000;

JSON

{
  "hex": "#2b4783",
  "rgb": {
    "r": 43,
    "g": 71,
    "b": 131
  },
  "hsl": {
    "h": 220.909,
    "s": 50.575,
    "l": 34.118
  },
  "oklch": {
    "l": 0.40876,
    "c": 0.10619,
    "h": 263.6
  },
  "luminance": 0.06659
}

Semantic roles & 50–950 ramp

primary

#2B4783

secondary

#B0955A

accent

#AD4EDA

background

#F7F7FA

surface

#EDEDF4

border

#C8C8CE

text

#08090F

muted

#7B7B7F

Preview Lab

Preview with #2B4783

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

Preview Lab → · Contrast checker → · Palette generator →