#231A73#231A73

#231A73 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 30.0% C 0.144 H 277.8°. Best body text is #FFFFFF at 14.32:1 contrast (WCAG AA passes).

Color values

HEX	#231A73
RGB	rgb(35, 26, 115)
HSL	hsl(246, 63%, 28%)
HSV	hsv(246, 77%, 45%)
CMYK	cmyk(69.6%, 77.4%, 0%, 54.9%)
CIE-LAB	lab(17.15, 33.27, -49.36)
CIE-LCH	lch(17.15, 59.53, 303.98°)
OKLab	oklab(30.02% 0.0195 -0.1426)
OKLCH	oklch(30.02% 0.144 277.8)
XYZ	xyz(4.1560, 2.3336, 16.4477)
Luminance	0.0233 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A73 #6A731A

analogous

#1A3E73 #231A73 #4F1A73

triadic

#231A73 #73231A #1A7323

tetradic

#231A73 #731A3E #6A731A #1A734F

square

#231A73 #731A3E #6A731A #1A734F

split-complementary

#231A73 #734F1A #3E731A

monochromatic

#080619 #140F41 #231A73 #3225A5 #4636D2

Accessibility & contrast

On white

14.32

#231A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#231A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A73

14.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A73	#FFFFFF	#000000	##FFFFFF
##231A73	1.00	14.32	1.47	14.32
#FFFFFF	14.32	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E76

Deuteranopia (green-blind)

#002671

Tritanopia (blue-blind)

#003345

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231a73;
/* rgb */ color: rgb(35, 26, 115);
/* oklch */ color: oklch(30.0% 0.144 277.8);

Tailwind

colors: {
  custom: {
    50: '#6a589c',
    500: '#231a73',
    950: '#000000',
  },
}

SCSS

$custom: #231a73;
$custom-light: #6a589c;
$custom-dark: #000000;

JSON

{
  "hex": "#231a73",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 115
  },
  "hsl": {
    "h": 246.067,
    "s": 63.121,
    "l": 27.647
  },
  "oklch": {
    "l": 0.3002,
    "c": 0.1439,
    "h": 277.8
  },
  "luminance": 0.02334
}

Semantic roles & 50–950 ramp

primary

#231A73

secondary

#9DA841

accent

#E642D6

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231A73

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

Preview Lab → · Contrast checker → · Palette generator →