#2A31AB#2A31AB

#2A31AB is a dark, vivid blue. Relative luminance 0.056; OKLCH L 40.0% C 0.190 H 271.6°. Best body text is #FFFFFF at 9.88:1 contrast (WCAG AA passes).

Color values

HEX	#2A31AB
RGB	rgb(42, 49, 171)
HSL	hsl(237, 61%, 42%)
HSV	hsv(237, 75%, 67%)
CMYK	cmyk(75.4%, 71.3%, 0%, 32.9%)
CIE-LAB	lab(28.45, 39.62, -65.53)
CIE-LCH	lch(28.45, 76.57, 301.16°)
OKLab	oklab(39.97% 0.0052 -0.1896)
OKLCH	oklch(39.97% 0.19 271.6)
XYZ	xyz(9.4014, 5.6281, 39.1110)
Luminance	0.0563 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2A31AB #ABA42A

analogous

#2A72AB #2A31AB #642AAB

triadic

#2A31AB #AB2A31 #31AB2A

tetradic

#2A31AB #AB2A72 #ABA42A #2AAB64

square

#2A31AB #AB2A72 #ABA42A #2AAB64

split-complementary

#2A31AB #AB642A #72AB2A

monochromatic

#121549 #1E237A #2A31AB #4249D1 #7379DD

Accessibility & contrast

On white

9.88

#2A31AB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.13

#2A31AB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2A31AB

9.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2A31AB	#FFFFFF	#000000	##FFFFFF
##2A31AB	1.00	9.88	2.13	9.88
#FFFFFF	9.88	1.00	21.00	1.00
#000000	2.13	21.00	1.00	21.00
##FFFFFF	9.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049AF

Deuteranopia (green-blind)

#003DA9

Tritanopia (blue-blind)

#00536A

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #2a31ab;
/* rgb */ color: rgb(42, 49, 171);
/* oklch */ color: oklch(40.0% 0.190 271.6);

Tailwind

colors: {
  custom: {
    50: '#796ac5',
    500: '#2a31ab',
    950: '#000000',
  },
}

SCSS

$custom: #2a31ab;
$custom-light: #796ac5;
$custom-dark: #000000;

JSON

{
  "hex": "#2a31ab",
  "rgb": {
    "r": 42,
    "g": 49,
    "b": 171
  },
  "hsl": {
    "h": 236.744,
    "s": 60.563,
    "l": 41.765
  },
  "oklch": {
    "l": 0.39968,
    "c": 0.18971,
    "h": 271.6
  },
  "luminance": 0.05629
}

Semantic roles & 50–950 ramp

primary

#2A31AB

secondary

#C4BF6D

accent

#DB44E4

background

#F8F6FC

surface

#EFEBF8

border

#CAC6D1

text

#0B0613

muted

#7C7A82

Preview Lab

Preview with #2A31AB

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

Preview Lab → · Contrast checker → · Palette generator →