#17285B#17285B

#17285B is a dark, moderate blue. Relative luminance 0.025; OKLCH L 29.5% C 0.094 H 266.7°. Best body text is #FFFFFF at 14.08:1 contrast (WCAG AA passes).

Color values

HEX	#17285B
RGB	rgb(23, 40, 91)
HSL	hsl(225, 60%, 22%)
HSV	hsv(225, 75%, 36%)
CMYK	cmyk(74.7%, 56%, 0%, 64.3%)
CIE-LAB	lab(17.71, 12.70, -32.74)
CIE-LCH	lch(17.71, 35.12, 291.20°)
OKLab	oklab(29.52% -0.0055 -0.0941)
OKLCH	oklch(29.52% 0.094 266.7)
XYZ	xyz(2.9998, 2.4548, 10.2112)
Luminance	0.0245 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17285B #5B4A17

analogous

#174A5B #17285B #28175B

triadic

#17285B #5B1728 #285B17

tetradic

#17285B #5B174A #5B4A17 #175B28

square

#17285B #5B174A #5B4A17 #175B28

split-complementary

#17285B #5B2817 #4A5B17

monochromatic

#060B18 #0B132A #17285B #233D8C #3053BD

Accessibility & contrast

On white

14.08

#17285B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#17285B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17285B

14.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17285B	#FFFFFF	#000000	##FFFFFF
##17285B	1.00	14.08	1.49	14.08
#FFFFFF	14.08	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#072F5D

Deuteranopia (green-blind)

#00285A

Tritanopia (blue-blind)

#00343D

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #17285b;
/* rgb */ color: rgb(23, 40, 91);
/* oklch */ color: oklch(29.5% 0.094 266.7);

Tailwind

colors: {
  custom: {
    50: '#5e618a',
    500: '#17285b',
    950: '#000000',
  },
}

SCSS

$custom: #17285b;
$custom-light: #5e618a;
$custom-dark: #000000;

JSON

{
  "hex": "#17285b",
  "rgb": {
    "r": 23,
    "g": 40,
    "b": 91
  },
  "hsl": {
    "h": 225,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.29524,
    "c": 0.09425,
    "h": 266.7
  },
  "luminance": 0.02455
}

Semantic roles & 50–950 ramp

primary

#17285B

secondary

#927C3C

accent

#BB45E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #17285B

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

Preview Lab → · Contrast checker → · Palette generator →