#17237A#17237A

#17237A is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.5% C 0.146 H 269.2°. Best body text is #FFFFFF at 13.48:1 contrast (WCAG AA passes).

Color values

HEX	#17237A
RGB	rgb(23, 35, 122)
HSL	hsl(233, 68%, 28%)
HSV	hsv(233, 81%, 48%)
CMYK	cmyk(81.1%, 71.3%, 0%, 52.2%)
CIE-LAB	lab(19.18, 28.80, -50.54)
CIE-LCH	lch(19.18, 58.17, 299.67°)
OKLab	oklab(31.49% -0.0019 -0.1463)
OKLCH	oklch(31.49% 0.146 269.2)
XYZ	xyz(4.4660, 2.7889, 18.7115)
Luminance	0.0279 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17237A #7A6E17

analogous

#17547A #17237A #3C177A

triadic

#17237A #7A1723 #237A17

tetradic

#17237A #7A1754 #7A6E17 #177A3C

square

#17237A #7A1754 #7A6E17 #177A3C

split-complementary

#17237A #7A3C17 #547A17

monochromatic

#05071A #0D1447 #17237A #2132AD #3347D9

Accessibility & contrast

On white

13.48

#17237A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#17237A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17237A

13.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17237A	#FFFFFF	#000000	##FFFFFF
##17237A	1.00	13.48	1.56	13.48
#FFFFFF	13.48	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00337D

Deuteranopia (green-blind)

#002A78

Tritanopia (blue-blind)

#003B4B

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17237a;
/* rgb */ color: rgb(23, 35, 122);
/* oklch */ color: oklch(31.5% 0.146 269.2);

Tailwind

colors: {
  custom: {
    50: '#675ea1',
    500: '#17237a',
    950: '#000000',
  },
}

SCSS

$custom: #17237a;
$custom-light: #675ea1;
$custom-dark: #000000;

JSON

{
  "hex": "#17237a",
  "rgb": {
    "r": 23,
    "g": 35,
    "b": 122
  },
  "hsl": {
    "h": 232.727,
    "s": 68.276,
    "l": 28.431
  },
  "oklch": {
    "l": 0.31491,
    "c": 0.14636,
    "h": 269.2
  },
  "luminance": 0.02789
}

Semantic roles & 50–950 ramp

primary

#17237A

secondary

#AFA13E

accent

#D63DEB

background

#F6F5FA

surface

#EBE9F3

border

#C6C5CD

text

#07040F

muted

#7A797F

Preview Lab

Preview with #17237A

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

Preview Lab → · Contrast checker → · Palette generator →