#17428F#17428F

#17428F is a dark, vivid blue. Relative luminance 0.061; OKLCH L 39.8% C 0.136 H 261.0°. Best body text is #FFFFFF at 9.49:1 contrast (WCAG AA passes).

Color values

HEX	#17428F
RGB	rgb(23, 66, 143)
HSL	hsl(219, 72%, 33%)
HSV	hsv(219, 84%, 56%)
CMYK	cmyk(83.9%, 53.8%, 0%, 43.9%)
CIE-LAB	lab(29.57, 15.72, -46.73)
CIE-LCH	lch(29.57, 49.30, 288.59°)
OKLab	oklab(39.81% -0.0213 -0.1347)
OKLCH	oklch(39.81% 0.136 261)
XYZ	xyz(7.2577, 6.0609, 26.7686)
Luminance	0.0606 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17428F #8F6417

analogous

#177E8F #17428F #28178F

triadic

#17428F #8F1742 #428F17

tetradic

#17428F #8F177E #8F6417 #178F28

square

#17428F #8F177E #8F6417 #178F28

split-complementary

#17428F #8F2817 #7E8F17

monochromatic

#061126 #0F2A5A #17428F #1F5AC4 #407AE0

Accessibility & contrast

On white

9.49

#17428F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#17428F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17428F

9.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17428F	#FFFFFF	#000000	##FFFFFF
##17428F	1.00	9.49	2.21	9.49
#FFFFFF	9.49	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#084B92

Deuteranopia (green-blind)

#00408D

Tritanopia (blue-blind)

#005562

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #17428f;
/* rgb */ color: rgb(23, 66, 143);
/* oklch */ color: oklch(39.8% 0.136 261.0);

Tailwind

colors: {
  custom: {
    50: '#6a75b0',
    500: '#17428f',
    950: '#000000',
  },
}

SCSS

$custom: #17428f;
$custom-light: #6a75b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17428f",
  "rgb": {
    "r": 23,
    "g": 66,
    "b": 143
  },
  "hsl": {
    "h": 218.5,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39811,
    "c": 0.13642,
    "h": 261
  },
  "luminance": 0.06062
}

Semantic roles & 50–950 ramp

primary

#17428F

secondary

#C19341

accent

#AE39EF

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080811

muted

#7A7B80

Preview Lab

Preview with #17428F

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

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