#17286C#17286C

#17286C is a dark, vivid blue. Relative luminance 0.028; OKLCH L 31.1% C 0.120 H 267.9°. Best body text is #FFFFFF at 13.49:1 contrast (WCAG AA passes).

Color values

HEX	#17286C
RGB	rgb(23, 40, 108)
HSL	hsl(228, 65%, 26%)
HSV	hsv(228, 79%, 42%)
CMYK	cmyk(78.7%, 63%, 0%, 57.6%)
CIE-LAB	lab(19.15, 19.74, -41.58)
CIE-LCH	lch(19.15, 46.02, 295.39°)
OKLab	oklab(31.05% -0.0045 -0.1201)
OKLCH	oklch(31.05% 0.12 267.9)
XYZ	xyz(3.8180, 2.7820, 14.5202)
Luminance	0.0278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17286C #6C5B17

analogous

#17526C #17286C #30176C

triadic

#17286C #6C1728 #286C17

tetradic

#17286C #6C1752 #6C5B17 #176C30

square

#17286C #6C1752 #6C5B17 #176C30

split-complementary

#17286C #6C3017 #526C17

monochromatic

#050919 #0C153A #17286C #223B9E #2C4DD1

Accessibility & contrast

On white

13.49

#17286C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.56

#17286C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17286C

13.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17286C	#FFFFFF	#000000	##FFFFFF
##17286C	1.00	13.49	1.56	13.49
#FFFFFF	13.49	1.00	21.00	1.00
#000000	1.56	21.00	1.00	21.00
##FFFFFF	13.49	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00336E

Deuteranopia (green-blind)

#002B6B

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #17286c;
/* rgb */ color: rgb(23, 40, 108);
/* oklch */ color: oklch(31.1% 0.120 267.9);

Tailwind

colors: {
  custom: {
    50: '#626197',
    500: '#17286c',
    950: '#000000',
  },
}

SCSS

$custom: #17286c;
$custom-light: #626197;
$custom-dark: #000000;

JSON

{
  "hex": "#17286c",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 108
  },
  "hsl": {
    "h": 228,
    "s": 64.885,
    "l": 25.686
  },
  "oklch": {
    "l": 0.31054,
    "c": 0.12016,
    "h": 267.9
  },
  "luminance": 0.02782
}

Semantic roles & 50–950 ramp

primary

#17286C

secondary

#A28E3D

accent

#C640E8

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #17286C

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

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