#231A72#231A72

#231A72 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.143 H 277.9°. Best body text is #FFFFFF at 14.36:1 contrast (WCAG AA passes).

Color values

HEX	#231A72
RGB	rgb(35, 26, 114)
HSL	hsl(246, 63%, 27%)
HSV	hsv(246, 77%, 45%)
CMYK	cmyk(69.3%, 77.2%, 0%, 55.3%)
CIE-LAB	lab(17.04, 32.92, -48.90)
CIE-LCH	lch(17.04, 58.95, 303.96°)
OKLab	oklab(29.91% 0.0197 -0.1412)
OKLCH	oklch(29.91% 0.143 277.9)
XYZ	xyz(4.0988, 2.3107, 16.1463)
Luminance	0.0231 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#231A72 #69721A

analogous

#1A3D72 #231A72 #4F1A72

triadic

#231A72 #72231A #1A7223

tetradic

#231A72 #721A3D #69721A #1A724F

square

#231A72 #721A3D #69721A #1A724F

split-complementary

#231A72 #724F1A #3D721A

monochromatic

#080619 #140F40 #231A72 #3225A4 #4535D1

Accessibility & contrast

On white

14.36

#231A72 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#231A72 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #231A72

14.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##231A72	#FFFFFF	#000000	##FFFFFF
##231A72	1.00	14.36	1.46	14.36
#FFFFFF	14.36	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.36	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D75

Deuteranopia (green-blind)

#002670

Tritanopia (blue-blind)

#003344

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #231a72;
/* rgb */ color: rgb(35, 26, 114);
/* oklch */ color: oklch(29.9% 0.143 277.9);

Tailwind

colors: {
  custom: {
    50: '#6a589c',
    500: '#231a72',
    950: '#000000',
  },
}

SCSS

$custom: #231a72;
$custom-light: #6a589c;
$custom-dark: #000000;

JSON

{
  "hex": "#231a72",
  "rgb": {
    "r": 35,
    "g": 26,
    "b": 114
  },
  "hsl": {
    "h": 246.136,
    "s": 62.857,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29911,
    "c": 0.14259,
    "h": 277.9
  },
  "luminance": 0.02311
}

Semantic roles & 50–950 ramp

primary

#231A72

secondary

#9CA741

accent

#E642D5

background

#F6F5F9

surface

#ECE9F2

border

#C7C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #231A72

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

Preview Lab → · Contrast checker → · Palette generator →