#231A77#231A77

#231A77 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.5% C 0.149 H 277.1°. Best body text is #FFFFFF at 14.14:1 contrast (WCAG AA passes).

Color values

HEX	#231A77
RGB	rgb(35, 26, 119)
HSL	hsl(246, 64%, 28%)
HSV	hsv(246, 78%, 47%)
CMYK	cmyk(70.6%, 78.2%, 0%, 53.3%)
CIE-LAB	lab(17.59, 34.64, -51.21)
CIE-LCH	lch(17.59, 61.83, 304.07°)
OKLab	oklab(30.46% 0.0185 -0.148)
OKLCH	oklch(30.46% 0.149 277.1)
XYZ	xyz(4.3912, 2.4276, 17.6864)
Luminance	0.0243 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A77 #6E771A

analogous

#1A3F77 #231A77 #511A77

triadic

#231A77 #77231A #1A7723

tetradic

#231A77 #771A3F #6E771A #1A7751

square

#231A77 #771A3F #6E771A #1A7751

split-complementary

#231A77 #77511A #3F771A

monochromatic

#070519 #140F45 #231A77 #3225A9 #4738D3

Accessibility & contrast

On white

14.14

#231A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#231A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A77

14.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A77	#FFFFFF	#000000	##FFFFFF
##231A77	1.00	14.14	1.49	14.14
#FFFFFF	14.14	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.14	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F7A

Deuteranopia (green-blind)

#002775

Tritanopia (blue-blind)

#003547

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #231a77;
/* rgb */ color: rgb(35, 26, 119);
/* oklch */ color: oklch(30.5% 0.149 277.1);

Tailwind

colors: {
  custom: {
    50: '#6b589f',
    500: '#231a77',
    950: '#000000',
  },
}

SCSS

$custom: #231a77;
$custom-light: #6b589f;
$custom-dark: #000000;

JSON

{
  "hex": "#231a77",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 119
  },
  "hsl": {
    "h": 245.806,
    "s": 64.138,
    "l": 28.431
  },
  "oklch": {
    "l": 0.30462,
    "c": 0.14914,
    "h": 277.1
  },
  "luminance": 0.02428
}

Semantic roles & 50–950 ramp

primary

#231A77

secondary

#A1AC41

accent

#E741D7

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#08030F

muted

#7A787E

Preview Lab

Preview with #231A77

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

Preview Lab → · Contrast checker → · Palette generator →