#2A3571#2A3571

#2A3571 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.4% C 0.104 H 272.2°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#2A3571
RGB	rgb(42, 53, 113)
HSL	hsl(231, 46%, 30%)
HSV	hsv(231, 63%, 44%)
CMYK	cmyk(62.8%, 53.1%, 0%, 55.7%)
CIE-LAB	lab(24.42, 15.69, -36.21)
CIE-LCH	lch(24.42, 39.46, 293.42°)
OKLab	oklab(35.44% 0.0041 -0.1036)
OKLCH	oklch(35.44% 0.104 272.2)
XYZ	xyz(5.2076, 4.2303, 16.1617)
Luminance	0.0423 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A3571 #71662A

analogous

#2A5871 #2A3571 #422A71

triadic

#2A3571 #712A35 #35712A

tetradic

#2A3571 #712A58 #71662A #2A7142

square

#2A3571 #712A58 #71662A #2A7142

split-complementary

#2A3571 #71422A #58712A

monochromatic

#090B18 #192044 #2A3571 #3B4A9E #5566C0

Accessibility & contrast

On white

11.37

#2A3571 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#2A3571 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A3571

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A3571	#FFFFFF	#000000	##FFFFFF
##2A3571	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#143D73

Deuteranopia (green-blind)

#053770

Tritanopia (blue-blind)

#00434D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #2a3571;
/* rgb */ color: rgb(42, 53, 113);
/* oklch */ color: oklch(35.4% 0.104 272.2);

Tailwind

colors: {
  custom: {
    50: '#6b6c9a',
    500: '#2a3571',
    950: '#000000',
  },
}

SCSS

$custom: #2a3571;
$custom-light: #6b6c9a;
$custom-dark: #000000;

JSON

{
  "hex": "#2a3571",
  "rgb": {
    "r": 42,
    "g": 53,
    "b": 113
  },
  "hsl": {
    "h": 230.704,
    "s": 45.806,
    "l": 30.392
  },
  "oklch": {
    "l": 0.35437,
    "c": 0.10371,
    "h": 272.2
  },
  "luminance": 0.04231
}

Semantic roles & 50–950 ramp

primary

#2A3571

secondary

#A39754

accent

#C152D5

background

#F6F6F9

surface

#ECEBF2

border

#C7C6CC

text

#07060E

muted

#7A7A7E

Preview Lab

Preview with #2A3571

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

Preview Lab → · Contrast checker → · Palette generator →