#17286E#17286E

#17286E is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.2% C 0.123 H 267.9°. Best body text is #FFFFFF at 13.42:1 contrast (WCAG AA passes).

Color values

HEX	#17286E
RGB	rgb(23, 40, 110)
HSL	hsl(228, 65%, 26%)
HSV	hsv(228, 79%, 43%)
CMYK	cmyk(79.1%, 63.6%, 0%, 56.9%)
CIE-LAB	lab(19.33, 20.55, -42.58)
CIE-LCH	lch(19.33, 47.28, 295.76°)
OKLab	oklab(31.24% -0.0045 -0.123)
OKLCH	oklch(31.24% 0.123 267.9)
XYZ	xyz(3.9256, 2.8251, 15.0872)
Luminance	0.0283 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17286E #6E5D17

analogous

#17536E #17286E #31176E

triadic

#17286E #6E1728 #286E17

tetradic

#17286E #6E1753 #6E5D17 #176E31

square

#17286E #6E1753 #6E5D17 #176E31

split-complementary

#17286E #6E3117 #536E17

monochromatic

#050919 #0C163B #17286E #223AA1 #2C4DD3

Accessibility & contrast

On white

13.42

#17286E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17286E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17286E

13.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17286E	#FFFFFF	#000000	##FFFFFF
##17286E	1.00	13.42	1.57	13.42
#FFFFFF	13.42	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003370

Deuteranopia (green-blind)

#002B6D

Tritanopia (blue-blind)

#003A46

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17286e;
/* rgb */ color: rgb(23, 40, 110);
/* oklch */ color: oklch(31.2% 0.123 267.9);

Tailwind

colors: {
  custom: {
    50: '#636198',
    500: '#17286e',
    950: '#000000',
  },
}

SCSS

$custom: #17286e;
$custom-light: #636198;
$custom-dark: #000000;

JSON

{
  "hex": "#17286e",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 110
  },
  "hsl": {
    "h": 228.276,
    "s": 65.414,
    "l": 26.078
  },
  "oklch": {
    "l": 0.31244,
    "c": 0.1231,
    "h": 267.9
  },
  "luminance": 0.02826
}

Semantic roles & 50–950 ramp

primary

#17286E

secondary

#A4903D

accent

#C73FE8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #17286E

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

Preview Lab → · Contrast checker → · Palette generator →