#2A3BB9#2A3BB9

#2A3BB9 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.197 H 269.6°. Best body text is #FFFFFF at 8.66:1 contrast (WCAG AA passes).

Color values

HEX	#2A3BB9
RGB	rgb(42, 59, 185)
HSL	hsl(233, 63%, 45%)
HSV	hsv(233, 77%, 73%)
CMYK	cmyk(77.3%, 68.1%, 0%, 27.5%)
CIE-LAB	lab(32.08, 38.41, -67.90)
CIE-LCH	lch(32.08, 78.01, 299.50°)
OKLab	oklab(43% -0.0015 -0.1965)
OKLCH	oklch(43% 0.197 269.6)
XYZ	xyz(11.2728, 7.1217, 46.6700)
Luminance	0.0712 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3BB9 #B9A82A

analogous

#2A83B9 #2A3BB9 #602AB9

triadic

#2A3BB9 #B92A3B #3BB92A

tetradic

#2A3BB9 #B92A83 #B9A82A #2AB960

square

#2A3BB9 #B92A83 #B9A82A #2AB960

split-complementary

#2A3BB9 #B9602A #83B92A

monochromatic

#131B55 #1F2B87 #2A3BB9 #4A5BD6 #7C88E1

Accessibility & contrast

On white

8.66

#2A3BB9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#2A3BB9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3BB9

8.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3BB9	#FFFFFF	#000000	##FFFFFF
##2A3BB9	1.00	8.66	2.42	8.66
#FFFFFF	8.66	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0052BD

Deuteranopia (green-blind)

#0045B7

Tritanopia (blue-blind)

#005D75

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a3bb9;
/* rgb */ color: rgb(42, 59, 185);
/* oklch */ color: oklch(43.0% 0.197 269.6);

Tailwind

colors: {
  custom: {
    50: '#7b71cf',
    500: '#2a3bb9',
    950: '#000000',
  },
}

SCSS

$custom: #2a3bb9;
$custom-light: #7b71cf;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3bb9",
  "rgb": {
    "r": 42,
    "g": 59,
    "b": 185
  },
  "hsl": {
    "h": 232.867,
    "s": 62.996,
    "l": 44.51
  },
  "oklch": {
    "l": 0.43002,
    "c": 0.19655,
    "h": 269.6
  },
  "luminance": 0.07123
}

Semantic roles & 50–950 ramp

primary

#2A3BB9

secondary

#CAC075

accent

#D342E6

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2A3BB9

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

Preview Lab → · Contrast checker → · Palette generator →