#2B3F9D#2B3F9D

#2B3F9D is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.2% C 0.154 H 269.3°. Best body text is #FFFFFF at 9.13:1 contrast (WCAG AA passes).

Color values

HEX	#2B3F9D
RGB	rgb(43, 63, 157)
HSL	hsl(229, 57%, 39%)
HSV	hsv(229, 73%, 62%)
CMYK	cmyk(72.6%, 59.9%, 0%, 38.4%)
CIE-LAB	lab(30.65, 25.63, -53.48)
CIE-LCH	lch(30.65, 59.31, 295.60°)
OKLab	oklab(41.2% -0.002 -0.1543)
OKLCH	oklch(41.2% 0.154 269.3)
XYZ	xyz(8.8575, 6.5020, 32.6800)
Luminance	0.0650 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3F9D #9D892B

analogous

#2B789D #2B3F9D #502B9D

triadic

#2B3F9D #9D2B3F #3F9D2B

tetradic

#2B3F9D #9D2B78 #9D892B #2B9D50

square

#2B3F9D #9D2B78 #9D892B #2B9D50

split-complementary

#2B3F9D #9D502B #789D2B

monochromatic

#11183D #1E2C6D #2B3F9D #3C55CA #6C7ED7

Accessibility & contrast

On white

9.13

#2B3F9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#2B3F9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3F9D

9.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3F9D	#FFFFFF	#000000	##FFFFFF
##2B3F9D	1.00	9.13	2.30	9.13
#FFFFFF	9.13	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.13	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA0

Deuteranopia (green-blind)

#00439B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #2b3f9d;
/* rgb */ color: rgb(43, 63, 157);
/* oklch */ color: oklch(41.2% 0.154 269.3);

Tailwind

colors: {
  custom: {
    50: '#7473bb',
    500: '#2b3f9d',
    950: '#000000',
  },
}

SCSS

$custom: #2b3f9d;
$custom-light: #7473bb;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3f9d",
  "rgb": {
    "r": 43,
    "g": 63,
    "b": 157
  },
  "hsl": {
    "h": 229.474,
    "s": 57,
    "l": 39.216
  },
  "oklch": {
    "l": 0.41197,
    "c": 0.15429,
    "h": 269.3
  },
  "luminance": 0.06503
}

Semantic roles & 50–950 ramp

primary

#2B3F9D

secondary

#BDAE66

accent

#C548E0

background

#F7F7FB

surface

#EEEDF6

border

#C9C8D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #2B3F9D

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

Preview Lab → · Contrast checker → · Palette generator →