#2A3BB3#2A3BB3

#2A3BB3 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.189 H 269.7°. Best body text is #FFFFFF at 8.84:1 contrast (WCAG AA passes).

Color values

HEX	#2A3BB3
RGB	rgb(42, 59, 179)
HSL	hsl(233, 62%, 43%)
HSV	hsv(233, 77%, 70%)
CMYK	cmyk(76.5%, 67%, 0%, 29.8%)
CIE-LAB	lab(31.52, 36.25, -65.27)
CIE-LCH	lch(31.52, 74.66, 299.05°)
OKLab	oklab(42.42% -0.001 -0.1889)
OKLCH	oklch(42.42% 0.189 269.7)
XYZ	xyz(10.6527, 6.8737, 43.4044)
Luminance	0.0688 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3BB3 #B3A22A

analogous

#2A7FB3 #2A3BB3 #5D2AB3

triadic

#2A3BB3 #B32A3B #3BB32A

tetradic

#2A3BB3 #B32A7F #B3A22A #2AB35D

square

#2A3BB3 #B32A7F #B3A22A #2AB35D

split-complementary

#2A3BB3 #B35D2A #7FB32A

monochromatic

#131A50 #1E2B81 #2A3BB3 #4658D4 #7885DF

Accessibility & contrast

On white

8.84

#2A3BB3 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.38

#2A3BB3 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3BB3

8.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3BB3	#FFFFFF	#000000	##FFFFFF
##2A3BB3	1.00	8.84	2.38	8.84
#FFFFFF	8.84	1.00	21.00	1.00
#000000	2.38	21.00	1.00	21.00
##FFFFFF	8.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B7

Deuteranopia (green-blind)

#0044B1

Tritanopia (blue-blind)

#005B72

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #2a3bb3;
/* rgb */ color: rgb(42, 59, 179);
/* oklch */ color: oklch(42.4% 0.189 269.7);

Tailwind

colors: {
  custom: {
    50: '#7a71cb',
    500: '#2a3bb3',
    950: '#000000',
  },
}

SCSS

$custom: #2a3bb3;
$custom-light: #7a71cb;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3bb3",
  "rgb": {
    "r": 42,
    "g": 59,
    "b": 179
  },
  "hsl": {
    "h": 232.555,
    "s": 61.991,
    "l": 43.333
  },
  "oklch": {
    "l": 0.42419,
    "c": 0.18887,
    "h": 269.7
  },
  "luminance": 0.06875
}

Semantic roles & 50–950 ramp

primary

#2A3BB3

secondary

#C7BD72

accent

#D143E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A3BB3

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

Preview Lab → · Contrast checker → · Palette generator →