#2A3FA0#2A3FA0

#2A3FA0 is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.4% C 0.159 H 268.9°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#2A3FA0
RGB	rgb(42, 63, 160)
HSL	hsl(229, 58%, 40%)
HSV	hsv(229, 74%, 63%)
CMYK	cmyk(73.8%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(30.84, 26.63, -54.98)
CIE-LCH	lch(30.84, 61.09, 295.84°)
OKLab	oklab(41.41% -0.0029 -0.1587)
OKLCH	oklch(41.41% 0.159 268.9)
XYZ	xyz(9.0753, 6.5844, 34.0435)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3FA0 #A08B2A

analogous

#2A7AA0 #2A3FA0 #502AA0

triadic

#2A3FA0 #A02A3F #3FA02A

tetradic

#2A3FA0 #A02A7A #A08B2A #2AA050

square

#2A3FA0 #A02A7A #A08B2A #2AA050

split-complementary

#2A3FA0 #A0502A #7AA02A

monochromatic

#11193F #1D2C70 #2A3FA0 #3C55CC #6C7FD8

Accessibility & contrast

On white

9.06

#2A3FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#2A3FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3FA0

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3FA0	#FFFFFF	#000000	##FFFFFF
##2A3FA0	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00439E

Tritanopia (blue-blind)

#005769

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2a3fa0;
/* rgb */ color: rgb(42, 63, 160);
/* oklch */ color: oklch(41.4% 0.159 268.9);

Tailwind

colors: {
  custom: {
    50: '#7573bd',
    500: '#2a3fa0',
    950: '#000000',
  },
}

SCSS

$custom: #2a3fa0;
$custom-light: #7573bd;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3fa0",
  "rgb": {
    "r": 42,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 229.322,
    "s": 58.416,
    "l": 39.608
  },
  "oklch": {
    "l": 0.41406,
    "c": 0.15874,
    "h": 268.9
  },
  "luminance": 0.06585
}

Semantic roles & 50–950 ramp

primary

#2A3FA0

secondary

#BFAF67

accent

#C646E2

background

#F7F7FB

surface

#EEEDF7

border

#C9C8D0

text

#0A0812

muted

#7C7B81

Preview Lab

Preview with #2A3FA0

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

Preview Lab → · Contrast checker → · Palette generator →