#2A3DB1#2A3DB1

#2A3DB1 is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.6% C 0.184 H 269.4°. Best body text is #FFFFFF at 8.75:1 contrast (WCAG AA passes).

Color values

HEX	#2A3DB1
RGB	rgb(42, 61, 177)
HSL	hsl(232, 62%, 43%)
HSV	hsv(232, 76%, 69%)
CMYK	cmyk(76.3%, 65.5%, 0%, 30.6%)
CIE-LAB	lab(31.81, 34.25, -63.59)
CIE-LCH	lch(31.81, 72.23, 298.31°)
OKLab	oklab(42.58% -0.0021 -0.1839)
OKLCH	oklch(42.58% 0.184 269.4)
XYZ	xyz(10.5567, 7.0029, 42.3818)
Luminance	0.0700 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3DB1 #B19E2A

analogous

#2A80B1 #2A3DB1 #5B2AB1

triadic

#2A3DB1 #B12A3D #3DB12A

tetradic

#2A3DB1 #B12A80 #B19E2A #2AB15B

square

#2A3DB1 #B12A80 #B19E2A #2AB15B

split-complementary

#2A3DB1 #B15B2A #80B12A

monochromatic

#131B4E #1E2C80 #2A3DB1 #4559D3 #7785DF

Accessibility & contrast

On white

8.75

#2A3DB1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#2A3DB1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3DB1

8.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3DB1	#FFFFFF	#000000	##FFFFFF
##2A3DB1	1.00	8.75	2.40	8.75
#FFFFFF	8.75	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B5

Deuteranopia (green-blind)

#0045AF

Tritanopia (blue-blind)

#005C71

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #2a3db1;
/* rgb */ color: rgb(42, 61, 177);
/* oklch */ color: oklch(42.6% 0.184 269.4);

Tailwind

colors: {
  custom: {
    50: '#7972c9',
    500: '#2a3db1',
    950: '#000000',
  },
}

SCSS

$custom: #2a3db1;
$custom-light: #7972c9;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3db1",
  "rgb": {
    "r": 42,
    "g": 61,
    "b": 177
  },
  "hsl": {
    "h": 231.556,
    "s": 61.644,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42579,
    "c": 0.18396,
    "h": 269.4
  },
  "luminance": 0.07004
}

Semantic roles & 50–950 ramp

primary

#2A3DB1

secondary

#C6BA70

accent

#CE43E5

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #2A3DB1

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

Preview Lab → · Contrast checker → · Palette generator →