#231A75#231A75

#231A75 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.2% C 0.147 H 277.5°. Best body text is #FFFFFF at 14.23:1 contrast (WCAG AA passes).

Color values

HEX	#231A75
RGB	rgb(35, 26, 117)
HSL	hsl(246, 64%, 28%)
HSV	hsv(246, 78%, 46%)
CMYK	cmyk(70.1%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(17.37, 33.95, -50.29)
CIE-LCH	lch(17.37, 60.68, 304.02°)
OKLab	oklab(30.24% 0.019 -0.1453)
OKLCH	oklch(30.24% 0.147 277.5)
XYZ	xyz(4.2724, 2.3801, 17.0604)
Luminance	0.0238 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A75 #6C751A

analogous

#1A3E75 #231A75 #501A75

triadic

#231A75 #75231A #1A7523

tetradic

#231A75 #751A3E #6C751A #1A7550

square

#231A75 #751A3E #6C751A #1A7550

split-complementary

#231A75 #75501A #3E751A

monochromatic

#070619 #140F43 #231A75 #3225A7 #4637D3

Accessibility & contrast

On white

14.23

#231A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#231A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A75

14.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A75	#FFFFFF	#000000	##FFFFFF
##231A75	1.00	14.23	1.48	14.23
#FFFFFF	14.23	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002E78

Deuteranopia (green-blind)

#002773

Tritanopia (blue-blind)

#003446

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231a75;
/* rgb */ color: rgb(35, 26, 117);
/* oklch */ color: oklch(30.2% 0.147 277.5);

Tailwind

colors: {
  custom: {
    50: '#6b589e',
    500: '#231a75',
    950: '#000000',
  },
}

SCSS

$custom: #231a75;
$custom-light: #6b589e;
$custom-dark: #000000;

JSON

{
  "hex": "#231a75",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 245.934,
    "s": 63.636,
    "l": 28.039
  },
  "oklch": {
    "l": 0.3024,
    "c": 0.14653,
    "h": 277.5
  },
  "luminance": 0.0238
}

Semantic roles & 50–950 ramp

primary

#231A75

secondary

#9FAA41

accent

#E741D6

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030E

muted

#7A787E

Preview Lab

Preview with #231A75

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

Preview Lab → · Contrast checker → · Palette generator →