#2A3FA4#2A3FA4

#2A3FA4 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.8% C 0.164 H 269.0°. Best body text is #FFFFFF at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#2A3FA4
RGB	rgb(42, 63, 164)
HSL	hsl(230, 59%, 40%)
HSV	hsv(230, 74%, 64%)
CMYK	cmyk(74.4%, 61.6%, 0%, 35.7%)
CIE-LAB	lab(31.18, 28.13, -56.85)
CIE-LCH	lch(31.18, 63.43, 296.33°)
OKLab	oklab(41.76% -0.0029 -0.1642)
OKLCH	oklch(41.76% 0.164 269)
XYZ	xyz(9.4309, 6.7266, 35.9161)
Luminance	0.0673 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3FA4 #A48F2A

analogous

#2A7CA4 #2A3FA4 #522AA4

triadic

#2A3FA4 #A42A3F #3FA42A

tetradic

#2A3FA4 #A42A7C #A48F2A #2AA452

square

#2A3FA4 #A42A7C #A48F2A #2AA452

split-complementary

#2A3FA4 #A4522A #7CA42A

monochromatic

#111A43 #1E2C73 #2A3FA4 #3E56CD #6E81DA

Accessibility & contrast

On white

8.95

#2A3FA4 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2A3FA4 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3FA4

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3FA4	#FFFFFF	#000000	##FFFFFF
##2A3FA4	1.00	8.95	2.35	8.95
#FFFFFF	8.95	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FA7

Deuteranopia (green-blind)

#0044A2

Tritanopia (blue-blind)

#00596B

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2a3fa4;
/* rgb */ color: rgb(42, 63, 164);
/* oklch */ color: oklch(41.8% 0.164 269.0);

Tailwind

colors: {
  custom: {
    50: '#7673c0',
    500: '#2a3fa4',
    950: '#000000',
  },
}

SCSS

$custom: #2a3fa4;
$custom-light: #7673c0;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3fa4",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 164
  },
  "hsl": {
    "h": 229.672,
    "s": 59.223,
    "l": 40.392
  },
  "oklch": {
    "l": 0.41759,
    "c": 0.16422,
    "h": 269
  },
  "luminance": 0.06728
}

Semantic roles & 50–950 ramp

primary

#2A3FA4

secondary

#C1B269

accent

#C745E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2A3FA4

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

Preview Lab → · Contrast checker → · Palette generator →