#231A8D#231A8D

#231A8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 33.0% C 0.177 H 274.2°. Best body text is #FFFFFF at 13.09:1 contrast (WCAG AA passes).

Color values

HEX	#231A8D
RGB	rgb(35, 26, 141)
HSL	hsl(245, 69%, 33%)
HSV	hsv(245, 82%, 55%)
CMYK	cmyk(75.2%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(20.12, 41.94, -60.95)
CIE-LCH	lch(20.12, 73.99, 304.53°)
OKLab	oklab(32.98% 0.013 -0.1763)
OKLCH	oklch(32.98% 0.177 274.2)
XYZ	xyz(5.8687, 3.0186, 25.4675)
Luminance	0.0302 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A8D #848D1A

analogous

#1A4A8D #231A8D #5D1A8D

triadic

#231A8D #8D231A #1A8D23

tetradic

#231A8D #8D1A4A #848D1A #1A8D5D

square

#231A8D #8D1A4A #848D1A #1A8D5D

split-complementary

#231A8D #8D5D1A #4A8D1A

monochromatic

#090726 #161059 #231A8D #3024C1 #5145DD

Accessibility & contrast

On white

13.09

#231A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.60

#231A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A8D

13.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A8D	#FFFFFF	#000000	##FFFFFF
##231A8D	1.00	13.09	1.60	13.09
#FFFFFF	13.09	1.00	21.00	1.00
#000000	1.60	21.00	1.00	21.00
##FFFFFF	13.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003690

Deuteranopia (green-blind)

#002B8B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231a8d;
/* rgb */ color: rgb(35, 26, 141);
/* oklch */ color: oklch(33.0% 0.177 274.2);

Tailwind

colors: {
  custom: {
    50: '#715ab0',
    500: '#231a8d',
    950: '#000000',
  },
}

SCSS

$custom: #231a8d;
$custom-light: #715ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#231a8d",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 244.696,
    "s": 68.862,
    "l": 32.745
  },
  "oklch": {
    "l": 0.32981,
    "c": 0.17678,
    "h": 274.2
  },
  "luminance": 0.03019
}

Semantic roles & 50–950 ramp

primary

#231A8D

secondary

#B4BE45

accent

#EC3CDE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231A8D

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

Preview Lab → · Contrast checker → · Palette generator →