#17285C#17285C

#17285C is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.6% C 0.096 H 266.8°. Best body text is #FFFFFF at 14.05:1 contrast (WCAG AA passes).

Color values

HEX	#17285C
RGB	rgb(23, 40, 92)
HSL	hsl(225, 60%, 23%)
HSV	hsv(225, 75%, 36%)
CMYK	cmyk(75%, 56.5%, 0%, 63.9%)
CIE-LAB	lab(17.79, 13.11, -33.28)
CIE-LCH	lch(17.79, 35.77, 291.51°)
OKLab	oklab(29.61% -0.0054 -0.0957)
OKLCH	oklch(29.61% 0.096 266.8)
XYZ	xyz(3.0432, 2.4721, 10.4399)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17285C #5C4B17

analogous

#174B5C #17285C #28175C

triadic

#17285C #5C1728 #285C17

tetradic

#17285C #5C174B #5C4B17 #175C28

square

#17285C #5C174B #5C4B17 #175C28

split-complementary

#17285C #5C2817 #4B5C17

monochromatic

#060B18 #0B132B #17285C #233D8D #2F53BE

Accessibility & contrast

On white

14.05

#17285C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#17285C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17285C

14.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17285C	#FFFFFF	#000000	##FFFFFF
##17285C	1.00	14.05	1.49	14.05
#FFFFFF	14.05	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#062F5E

Deuteranopia (green-blind)

#00295B

Tritanopia (blue-blind)

#00343D

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #17285c;
/* rgb */ color: rgb(23, 40, 92);
/* oklch */ color: oklch(29.6% 0.096 266.8);

Tailwind

colors: {
  custom: {
    50: '#5e618b',
    500: '#17285c',
    950: '#000000',
  },
}

SCSS

$custom: #17285c;
$custom-light: #5e618b;
$custom-dark: #000000;

JSON

{
  "hex": "#17285c",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 92
  },
  "hsl": {
    "h": 225.217,
    "s": 60,
    "l": 22.549
  },
  "oklch": {
    "l": 0.29609,
    "c": 0.09582,
    "h": 266.8
  },
  "luminance": 0.02472
}

Semantic roles & 50–950 ramp

primary

#17285C

secondary

#937D3C

accent

#BC45E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #17285C

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

Preview Lab → · Contrast checker → · Palette generator →