#17286F#17286F

#17286F is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.3% C 0.125 H 267.9°. Best body text is #FFFFFF at 13.38:1 contrast (WCAG AA passes).

Color values

HEX	#17286F
RGB	rgb(23, 40, 111)
HSL	hsl(228, 66%, 26%)
HSV	hsv(228, 79%, 44%)
CMYK	cmyk(79.3%, 64%, 0%, 56.5%)
CIE-LAB	lab(19.42, 20.96, -43.08)
CIE-LCH	lch(19.42, 47.91, 295.94°)
OKLab	oklab(31.34% -0.0045 -0.1245)
OKLCH	oklch(31.34% 0.125 267.9)
XYZ	xyz(3.9804, 2.8470, 15.3756)
Luminance	0.0285 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17286F #6F5E17

analogous

#17546F #17286F #32176F

triadic

#17286F #6F1728 #286F17

tetradic

#17286F #6F1754 #6F5E17 #176F32

square

#17286F #6F1754 #6F5E17 #176F32

split-complementary

#17286F #6F3217 #546F17

monochromatic

#050919 #0C163C #17286F #223AA2 #2D4DD3

Accessibility & contrast

On white

13.38

#17286F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#17286F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17286F

13.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17286F	#FFFFFF	#000000	##FFFFFF
##17286F	1.00	13.38	1.57	13.38
#FFFFFF	13.38	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003371

Deuteranopia (green-blind)

#002B6E

Tritanopia (blue-blind)

#003A47

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #17286f;
/* rgb */ color: rgb(23, 40, 111);
/* oklch */ color: oklch(31.3% 0.125 267.9);

Tailwind

colors: {
  custom: {
    50: '#636199',
    500: '#17286f',
    950: '#000000',
  },
}

SCSS

$custom: #17286f;
$custom-light: #636199;
$custom-dark: #000000;

JSON

{
  "hex": "#17286f",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 111
  },
  "hsl": {
    "h": 228.409,
    "s": 65.672,
    "l": 26.275
  },
  "oklch": {
    "l": 0.3134,
    "c": 0.12456,
    "h": 267.9
  },
  "luminance": 0.02847
}

Semantic roles & 50–950 ramp

primary

#17286F

secondary

#A5913D

accent

#C83FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050E

muted

#7A797E

Preview Lab

Preview with #17286F

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

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