#2B3DA9#2B3DA9

#2B3DA9 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.173 H 269.8°. Best body text is #FFFFFF at 8.96:1 contrast (WCAG AA passes).

Color values

HEX	#2B3DA9
RGB	rgb(43, 61, 169)
HSL	hsl(231, 59%, 42%)
HSV	hsv(231, 75%, 66%)
CMYK	cmyk(74.6%, 63.9%, 0%, 33.7%)
CIE-LAB	lab(31.15, 31.42, -59.90)
CIE-LCH	lch(31.15, 67.64, 297.68°)
OKLab	oklab(41.89% -0.0007 -0.1731)
OKLCH	oklch(41.89% 0.173 269.8)
XYZ	xyz(9.8240, 6.7146, 38.3067)
Luminance	0.0672 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2B3DA9 #A9972B

analogous

#2B7CA9 #2B3DA9 #582BA9

triadic

#2B3DA9 #A92B3D #3DA92B

tetradic

#2B3DA9 #A92B7C #A9972B #2BA958

square

#2B3DA9 #A92B7C #A9972B #2BA958

split-complementary

#2B3DA9 #A9582B #7CA92B

monochromatic

#121A47 #1F2B78 #2B3DA9 #4256CF #7382DB

Accessibility & contrast

On white

8.96

#2B3DA9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.34

#2B3DA9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2B3DA9

8.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2B3DA9	#FFFFFF	#000000	##FFFFFF
##2B3DA9	1.00	8.96	2.34	8.96
#FFFFFF	8.96	1.00	21.00	1.00
#000000	2.34	21.00	1.00	21.00
##FFFFFF	8.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAC

Deuteranopia (green-blind)

#0043A7

Tritanopia (blue-blind)

#00596D

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2b3da9;
/* rgb */ color: rgb(43, 61, 169);
/* oklch */ color: oklch(41.9% 0.173 269.8);

Tailwind

colors: {
  custom: {
    50: '#7772c4',
    500: '#2b3da9',
    950: '#000000',
  },
}

SCSS

$custom: #2b3da9;
$custom-light: #7772c4;
$custom-dark: #000000;

JSON

{
  "hex": "#2b3da9",
  "rgb": {
    "r": 43,
    "g": 61,
    "b": 169
  },
  "hsl": {
    "h": 231.429,
    "s": 59.434,
    "l": 41.569
  },
  "oklch": {
    "l": 0.41885,
    "c": 0.17312,
    "h": 269.8
  },
  "luminance": 0.06716
}

Semantic roles & 50–950 ramp

primary

#2B3DA9

secondary

#C3B76D

accent

#CC45E3

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #2B3DA9

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

Preview Lab → · Contrast checker → · Palette generator →