#2A3BB0#2A3BB0

#2A3BB0 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.1% C 0.185 H 269.7°. Best body text is #FFFFFF at 8.93:1 contrast (WCAG AA passes).

Color values

HEX	#2A3BB0
RGB	rgb(42, 59, 176)
HSL	hsl(232, 61%, 43%)
HSV	hsv(232, 76%, 69%)
CMYK	cmyk(76.1%, 66.5%, 0%, 31%)
CIE-LAB	lab(31.24, 35.17, -63.94)
CIE-LCH	lch(31.24, 72.97, 298.81°)
OKLab	oklab(42.13% -0.0008 -0.185)
OKLCH	oklch(42.13% 0.185 269.7)
XYZ	xyz(10.3526, 6.7536, 41.8238)
Luminance	0.0675 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.23

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3BB0 #B09F2A

analogous

#2A7EB0 #2A3BB0 #5C2AB0

triadic

#2A3BB0 #B02A3B #3BB02A

tetradic

#2A3BB0 #B02A7E #B09F2A #2AB05C

square

#2A3BB0 #B02A7E #B09F2A #2AB05C

split-complementary

#2A3BB0 #B05C2A #7EB02A

monochromatic

#121A4D #1E2A7F #2A3BB0 #4557D3 #7683DE

Accessibility & contrast

On white

8.93

#2A3BB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#2A3BB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3BB0

8.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3BB0	#FFFFFF	#000000	##FFFFFF
##2A3BB0	1.00	8.93	2.35	8.93
#FFFFFF	8.93	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B4

Deuteranopia (green-blind)

#0043AE

Tritanopia (blue-blind)

#005A70

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #2a3bb0;
/* rgb */ color: rgb(42, 59, 176);
/* oklch */ color: oklch(42.1% 0.185 269.7);

Tailwind

colors: {
  custom: {
    50: '#7971c9',
    500: '#2a3bb0',
    950: '#000000',
  },
}

SCSS

$custom: #2a3bb0;
$custom-light: #7971c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3bb0",
  "rgb": {
    "r": 42,
    "g": 59,
    "b": 176
  },
  "hsl": {
    "h": 232.388,
    "s": 61.468,
    "l": 42.745
  },
  "oklch": {
    "l": 0.42132,
    "c": 0.18498,
    "h": 269.7
  },
  "luminance": 0.06755
}

Semantic roles & 50–950 ramp

primary

#2A3BB0

secondary

#C6BB70

accent

#D043E5

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #2A3BB0

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

Preview Lab → · Contrast checker → · Palette generator →