#2A3BB5#2A3BB5

#2A3BB5 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.191 H 269.6°. Best body text is #FFFFFF at 8.78:1 contrast (WCAG AA passes).

Color values

HEX	#2A3BB5
RGB	rgb(42, 59, 181)
HSL	hsl(233, 62%, 44%)
HSV	hsv(233, 77%, 71%)
CMYK	cmyk(76.8%, 67.4%, 0%, 29%)
CIE-LAB	lab(31.70, 36.97, -66.15)
CIE-LCH	lch(31.70, 75.78, 299.20°)
OKLab	oklab(42.61% -0.0012 -0.1914)
OKLCH	oklch(42.61% 0.191 269.6)
XYZ	xyz(10.8564, 6.9552, 44.4774)
Luminance	0.0696 (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

#2A3BB5 #B5A42A

analogous

#2A80B5 #2A3BB5 #5E2AB5

triadic

#2A3BB5 #B52A3B #3BB52A

tetradic

#2A3BB5 #B52A80 #B5A42A #2AB55E

square

#2A3BB5 #B52A80 #B5A42A #2AB55E

split-complementary

#2A3BB5 #B55E2A #80B52A

monochromatic

#131B52 #1E2B83 #2A3BB5 #4859D4 #7986E0

Accessibility & contrast

On white

8.78

#2A3BB5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#2A3BB5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3BB5

8.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3BB5	#FFFFFF	#000000	##FFFFFF
##2A3BB5	1.00	8.78	2.39	8.78
#FFFFFF	8.78	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B9

Deuteranopia (green-blind)

#0044B3

Tritanopia (blue-blind)

#005C73

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a3bb5;
/* rgb */ color: rgb(42, 59, 181);
/* oklch */ color: oklch(42.6% 0.191 269.6);

Tailwind

colors: {
  custom: {
    50: '#7a71cc',
    500: '#2a3bb5',
    950: '#000000',
  },
}

SCSS

$custom: #2a3bb5;
$custom-light: #7a71cc;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3bb5",
  "rgb": {
    "r": 42,
    "g": 59,
    "b": 181
  },
  "hsl": {
    "h": 232.662,
    "s": 62.332,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42613,
    "c": 0.19144,
    "h": 269.6
  },
  "luminance": 0.06956
}

Semantic roles & 50–950 ramp

primary

#2A3BB5

secondary

#C8BE73

accent

#D142E5

background

#F8F6FC

surface

#EFECF9

border

#CAC7D2

text

#0B0714

muted

#7C7A82

Preview Lab

Preview with #2A3BB5

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

Preview Lab → · Contrast checker → · Palette generator →