#2D3399#2D3399

#2D3399 is a dark, vivid blue. Relative luminance 0.052; OKLCH L 38.7% C 0.163 H 273.3°. Best body text is #FFFFFF at 10.27:1 contrast (WCAG AA passes).

Color values

HEX	#2D3399
RGB	rgb(45, 51, 153)
HSL	hsl(237, 55%, 39%)
HSV	hsv(237, 71%, 60%)
CMYK	cmyk(70.6%, 66.7%, 0%, 40%)
CIE-LAB	lab(27.37, 32.33, -56.40)
CIE-LCH	lch(27.37, 65.01, 299.82°)
OKLab	oklab(38.7% 0.0094 -0.1629)
OKLCH	oklch(38.7% 0.163 273.3)
XYZ	xyz(8.0139, 5.2247, 30.7169)
Luminance	0.0522 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2D3399 #99932D

analogous

#2D6999 #2D3399 #5D2D99

triadic

#2D3399 #992D33 #33992D

tetradic

#2D3399 #992D69 #99932D #2D995D

square

#2D3399 #992D69 #99932D #2D995D

split-complementary

#2D3399 #995D2D #69992D

monochromatic

#11133A #1F236A #2D3399 #3D45C6 #6C72D4

Accessibility & contrast

On white

10.27

#2D3399 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.05

#2D3399 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2D3399

10.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2D3399	#FFFFFF	#000000	##FFFFFF
##2D3399	1.00	10.27	2.05	10.27
#FFFFFF	10.27	1.00	21.00	1.00
#000000	2.05	21.00	1.00	21.00
##FFFFFF	10.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00469C

Deuteranopia (green-blind)

#003C97

Tritanopia (blue-blind)

#004E61

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #2d3399;
/* rgb */ color: rgb(45, 51, 153);
/* oklch */ color: oklch(38.7% 0.163 273.3);

Tailwind

colors: {
  custom: {
    50: '#756bb8',
    500: '#2d3399',
    950: '#000000',
  },
}

SCSS

$custom: #2d3399;
$custom-light: #756bb8;
$custom-dark: #000000;

JSON

{
  "hex": "#2d3399",
  "rgb": {
    "r": 45,
    "g": 51,
    "b": 153
  },
  "hsl": {
    "h": 236.667,
    "s": 54.545,
    "l": 38.824
  },
  "oklch": {
    "l": 0.38703,
    "c": 0.16317,
    "h": 273.3
  },
  "luminance": 0.05225
}

Semantic roles & 50–950 ramp

primary

#2D3399

secondary

#BBB667

accent

#D64ADE

background

#F7F6FB

surface

#EEEBF6

border

#C9C6D0

text

#0A0611

muted

#7C7A80

Preview Lab

Preview with #2D3399

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

Preview Lab → · Contrast checker → · Palette generator →