#17428A#17428A

#17428A is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.4% C 0.129 H 260.2°. Best body text is #FFFFFF at 9.62:1 contrast (WCAG AA passes).

Color values

HEX	#17428A
RGB	rgb(23, 66, 138)
HSL	hsl(218, 71%, 32%)
HSV	hsv(218, 83%, 54%)
CMYK	cmyk(83.3%, 52.2%, 0%, 45.9%)
CIE-LAB	lab(29.19, 13.66, -44.25)
CIE-LCH	lch(29.19, 46.32, 287.16°)
OKLab	oklab(39.41% -0.022 -0.1274)
OKLCH	oklch(39.41% 0.129 260.2)
XYZ	xyz(6.8873, 5.9127, 24.8181)
Luminance	0.0591 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17428A #8A5F17

analogous

#177C8A #17428A #25178A

triadic

#17428A #8A1742 #428A17

tetradic

#17428A #8A177C #8A5F17 #178A25

square

#17428A #8A177C #8A5F17 #178A25

split-complementary

#17428A #8A2517 #7C8A17

monochromatic

#061021 #0E2956 #17428A #205BBE #3D79DF

Accessibility & contrast

On white

9.62

#17428A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#17428A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17428A

9.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17428A	#FFFFFF	#000000	##FFFFFF
##17428A	1.00	9.62	2.18	9.62
#FFFFFF	9.62	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#134A8D

Deuteranopia (green-blind)

#004089

Tritanopia (blue-blind)

#00535F

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #17428a;
/* rgb */ color: rgb(23, 66, 138);
/* oklch */ color: oklch(39.4% 0.129 260.2);

Tailwind

colors: {
  custom: {
    50: '#6975ad',
    500: '#17428a',
    950: '#000000',
  },
}

SCSS

$custom: #17428a;
$custom-light: #6975ad;
$custom-dark: #000000;

JSON

{
  "hex": "#17428a",
  "rgb": {
    "r": 23,
    "g": 66,
    "b": 138
  },
  "hsl": {
    "h": 217.565,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.39407,
    "c": 0.12933,
    "h": 260.2
  },
  "luminance": 0.05914
}

Semantic roles & 50–950 ramp

primary

#17428A

secondary

#BE8E3F

accent

#AB3AEE

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #17428A

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

Preview Lab → · Contrast checker → · Palette generator →