#2431A9#2431A9

#2431A9 is a dark, vivid blue. Relative luminance 0.054; OKLCH L 39.5% C 0.189 H 269.7°. Best body text is #FFFFFF at 10.06:1 contrast (WCAG AA passes).

Color values

HEX	#2431A9
RGB	rgb(36, 49, 169)
HSL	hsl(234, 65%, 40%)
HSV	hsv(234, 79%, 66%)
CMYK	cmyk(78.7%, 71%, 0%, 33.7%)
CIE-LAB	lab(27.94, 38.37, -65.18)
CIE-LCH	lch(27.94, 75.64, 300.48°)
OKLab	oklab(39.45% -0.0009 -0.1888)
OKLCH	oklch(39.45% 0.189 269.7)
XYZ	xyz(8.9848, 5.4353, 38.1040)
Luminance	0.0544 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#2431A9 #A99C24

analogous

#2474A9 #2431A9 #5924A9

triadic

#2431A9 #A92431 #31A924

tetradic

#2431A9 #A92474 #A99C24 #24A959

square

#2431A9 #A92474 #A99C24 #24A959

split-complementary

#2431A9 #A95924 #74A924

monochromatic

#0F1444 #192277 #2431A9 #3645D4 #6874DF

Accessibility & contrast

On white

10.06

#2431A9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#2431A9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #2431A9

10.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##2431A9	#FFFFFF	#000000	##FFFFFF
##2431A9	1.00	10.06	2.09	10.06
#FFFFFF	10.06	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0048AD

Deuteranopia (green-blind)

#003BA7

Tritanopia (blue-blind)

#005369

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #2431a9;
/* rgb */ color: rgb(36, 49, 169);
/* oklch */ color: oklch(39.5% 0.189 269.7);

Tailwind

colors: {
  custom: {
    50: '#766ac4',
    500: '#2431a9',
    950: '#000000',
  },
}

SCSS

$custom: #2431a9;
$custom-light: #766ac4;
$custom-dark: #000000;

JSON

{
  "hex": "#2431a9",
  "rgb": {
    "r": 36,
    "g": 49,
    "b": 169
  },
  "hsl": {
    "h": 234.135,
    "s": 64.878,
    "l": 40.196
  },
  "oklch": {
    "l": 0.39453,
    "c": 0.18876,
    "h": 269.7
  },
  "luminance": 0.05436
}

Semantic roles & 50–950 ramp

primary

#2431A9

secondary

#C5BB64

accent

#D740E8

background

#F7F6FC

surface

#EEEBF8

border

#C9C6D1

text

#0A0613

muted

#7C7A82

Preview Lab

Preview with #2431A9

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

Preview Lab → · Contrast checker → · Palette generator →