#17286B#17286B

#17286B is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.119 H 267.8°. Best body text is #FFFFFF at 13.53:1 contrast (WCAG AA passes).

Color values

HEX	#17286B
RGB	rgb(23, 40, 107)
HSL	hsl(228, 65%, 25%)
HSV	hsv(228, 79%, 42%)
CMYK	cmyk(78.5%, 62.6%, 0%, 58%)
CIE-LAB	lab(19.06, 19.32, -41.07)
CIE-LCH	lch(19.06, 45.39, 295.20°)
OKLab	oklab(30.96% -0.0045 -0.1186)
OKLCH	oklch(30.96% 0.119 267.8)
XYZ	xyz(3.7651, 2.7609, 14.2415)
Luminance	0.0276 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17286B #6B5A17

analogous

#17526B #17286B #30176B

triadic

#17286B #6B1728 #286B17

tetradic

#17286B #6B1752 #6B5A17 #176B30

square

#17286B #6B1752 #6B5A17 #176B30

split-complementary

#17286B #6B3017 #526B17

monochromatic

#050919 #0C1539 #17286B #223B9D #2D4ED0

Accessibility & contrast

On white

13.53

#17286B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#17286B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17286B

13.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17286B	#FFFFFF	#000000	##FFFFFF
##17286B	1.00	13.53	1.55	13.53
#FFFFFF	13.53	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002A6A

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #17286b;
/* rgb */ color: rgb(23, 40, 107);
/* oklch */ color: oklch(31.0% 0.119 267.8);

Tailwind

colors: {
  custom: {
    50: '#626196',
    500: '#17286b',
    950: '#000000',
  },
}

SCSS

$custom: #17286b;
$custom-light: #626196;
$custom-dark: #000000;

JSON

{
  "hex": "#17286b",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 107
  },
  "hsl": {
    "h": 227.857,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.30959,
    "c": 0.11869,
    "h": 267.8
  },
  "luminance": 0.02761
}

Semantic roles & 50–950 ramp

primary

#17286B

secondary

#A18D3D

accent

#C640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #17286B

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

Preview Lab → · Contrast checker → · Palette generator →