#17428D#17428D

#17428D is a dark, vivid blue. Relative luminance 0.060; OKLCH L 39.6% C 0.134 H 260.7°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#17428D
RGB	rgb(23, 66, 141)
HSL	hsl(218, 72%, 32%)
HSV	hsv(218, 84%, 55%)
CMYK	cmyk(83.7%, 53.2%, 0%, 44.7%)
CIE-LAB	lab(29.41, 14.90, -45.74)
CIE-LCH	lch(29.41, 48.11, 288.04°)
OKLab	oklab(39.65% -0.0216 -0.1318)
OKLCH	oklch(39.65% 0.134 260.7)
XYZ	xyz(7.1075, 6.0008, 25.9778)
Luminance	0.0600 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17428D #8D6217

analogous

#177D8D #17428D #27178D

triadic

#17428D #8D1742 #428D17

tetradic

#17428D #8D177D #8D6217 #178D27

square

#17428D #8D177D #8D6217 #178D27

split-complementary

#17428D #8D2717 #7D8D17

monochromatic

#061124 #0E2958 #17428D #205BC2 #3F79E0

Accessibility & contrast

On white

9.54

#17428D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#17428D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17428D

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17428D	#FFFFFF	#000000	##FFFFFF
##17428D	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4B90

Deuteranopia (green-blind)

#00408C

Tritanopia (blue-blind)

#005461

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #17428d;
/* rgb */ color: rgb(23, 66, 141);
/* oklch */ color: oklch(39.6% 0.134 260.7);

Tailwind

colors: {
  custom: {
    50: '#6a75af',
    500: '#17428d',
    950: '#000000',
  },
}

SCSS

$custom: #17428d;
$custom-light: #6a75af;
$custom-dark: #000000;

JSON

{
  "hex": "#17428d",
  "rgb": {
    "r": 23,
    "g": 66,
    "b": 141
  },
  "hsl": {
    "h": 218.136,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.39648,
    "c": 0.13359,
    "h": 260.7
  },
  "luminance": 0.06002
}

Semantic roles & 50–950 ramp

primary

#17428D

secondary

#C09140

accent

#AD39EF

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #17428D

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

Preview Lab → · Contrast checker → · Palette generator →