#231A78#231A78

#231A78 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.6% C 0.150 H 277.0°. Best body text is #FFFFFF at 14.09:1 contrast (WCAG AA passes).

Color values

HEX	#231A78
RGB	rgb(35, 26, 120)
HSL	hsl(246, 64%, 29%)
HSV	hsv(246, 78%, 47%)
CMYK	cmyk(70.8%, 78.3%, 0%, 52.9%)
CIE-LAB	lab(17.70, 34.98, -51.67)
CIE-LCH	lch(17.70, 62.40, 304.09°)
OKLab	oklab(30.57% 0.0183 -0.1493)
OKLCH	oklch(30.57% 0.15 277)
XYZ	xyz(4.4516, 2.4518, 18.0043)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A78 #6F781A

analogous

#1A4078 #231A78 #521A78

triadic

#231A78 #78231A #1A7823

tetradic

#231A78 #781A40 #6F781A #1A7852

square

#231A78 #781A40 #6F781A #1A7852

split-complementary

#231A78 #78521A #40781A

monochromatic

#070519 #140F46 #231A78 #3225AA #4738D4

Accessibility & contrast

On white

14.09

#231A78 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#231A78 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A78

14.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A78	#FFFFFF	#000000	##FFFFFF
##231A78	1.00	14.09	1.49	14.09
#FFFFFF	14.09	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7B

Deuteranopia (green-blind)

#002776

Tritanopia (blue-blind)

#003548

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231a78;
/* rgb */ color: rgb(35, 26, 120);
/* oklch */ color: oklch(30.6% 0.150 277.0);

Tailwind

colors: {
  custom: {
    50: '#6c58a0',
    500: '#231a78',
    950: '#000000',
  },
}

SCSS

$custom: #231a78;
$custom-light: #6c58a0;
$custom-dark: #000000;

JSON

{
  "hex": "#231a78",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 120
  },
  "hsl": {
    "h": 245.745,
    "s": 64.384,
    "l": 28.627
  },
  "oklch": {
    "l": 0.30574,
    "c": 0.15042,
    "h": 277
  },
  "luminance": 0.02452
}

Semantic roles & 50–950 ramp

primary

#231A78

secondary

#A2AC41

accent

#E740D7

background

#F6F5FA

surface

#ECE9F3

border

#C7C5CD

text

#08030F

muted

#7A787F

Preview Lab

Preview with #231A78

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

Preview Lab → · Contrast checker → · Palette generator →