#231A8F#231A8F

#231A8F is a dark, vivid blue. Relative luminance 0.031; OKLCH L 33.2% C 0.179 H 274.0°. Best body text is #FFFFFF at 13.00:1 contrast (WCAG AA passes).

Color values

HEX	#231A8F
RGB	rgb(35, 26, 143)
HSL	hsl(245, 69%, 33%)
HSV	hsv(245, 82%, 56%)
CMYK	cmyk(75.5%, 81.8%, 0%, 43.9%)
CIE-LAB	lab(20.36, 42.59, -61.81)
CIE-LCH	lch(20.36, 75.06, 304.57°)
OKLab	oklab(33.22% 0.0124 -0.1788)
OKLCH	oklch(33.22% 0.179 274)
XYZ	xyz(6.0188, 3.0787, 26.2583)
Luminance	0.0308 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A8F #868F1A

analogous

#1A4C8F #231A8F #5D1A8F

triadic

#231A8F #8F231A #1A8F23

tetradic

#231A8F #8F1A4C #868F1A #1A8F5D

square

#231A8F #8F1A4C #868F1A #1A8F5D

split-complementary

#231A8F #8F5D1A #4C8F1A

monochromatic

#0A0727 #16115B #231A8F #3023C3 #5246DD

Accessibility & contrast

On white

13.00

#231A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#231A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A8F

13.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A8F	#FFFFFF	#000000	##FFFFFF
##231A8F	1.00	13.00	1.62	13.00
#FFFFFF	13.00	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	13.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003692

Deuteranopia (green-blind)

#002C8D

Tritanopia (blue-blind)

#003E55

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #231a8f;
/* rgb */ color: rgb(35, 26, 143);
/* oklch */ color: oklch(33.2% 0.179 274.0);

Tailwind

colors: {
  custom: {
    50: '#715ab1',
    500: '#231a8f',
    950: '#000000',
  },
}

SCSS

$custom: #231a8f;
$custom-light: #715ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#231a8f",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 143
  },
  "hsl": {
    "h": 244.615,
    "s": 69.231,
    "l": 33.137
  },
  "oklch": {
    "l": 0.33216,
    "c": 0.1792,
    "h": 274
  },
  "luminance": 0.03079
}

Semantic roles & 50–950 ramp

primary

#231A8F

secondary

#B5BF46

accent

#EC3CDE

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #231A8F

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

Preview Lab → · Contrast checker → · Palette generator →