#17185A#17185A

#17185A is a dark, moderate blue. Relative luminance 0.016; OKLCH L 26.1% C 0.115 H 274.3°. Best body text is #FFFFFF at 15.97:1 contrast (WCAG AA passes).

Color values

HEX	#17185A
RGB	rgb(23, 24, 90)
HSL	hsl(239, 59%, 22%)
HSV	hsv(239, 74%, 35%)
CMYK	cmyk(74.4%, 73.3%, 0%, 64.7%)
CIE-LAB	lab(13.07, 23.90, -39.64)
CIE-LCH	lch(13.07, 46.29, 301.08°)
OKLab	oklab(26.05% 0.0087 -0.1145)
OKLCH	oklch(26.05% 0.115 274.3)
XYZ	xyz(2.5248, 1.5734, 9.8415)
Luminance	0.0157 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17185A #5A5917

analogous

#173A5A #17185A #37175A

triadic

#17185A #5A1718 #185A17

tetradic

#17185A #5A173A #5A5917 #175A37

square

#17185A #5A173A #5A5917 #175A37

split-complementary

#17185A #5A3717 #3A5A17

monochromatic

#060618 #0B0B29 #17185A #23258B #3032BB

Accessibility & contrast

On white

15.97

#17185A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#17185A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17185A

15.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17185A	#FFFFFF	#000000	##FFFFFF
##17185A	1.00	15.97	1.31	15.97
#FFFFFF	15.97	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	15.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00255C

Deuteranopia (green-blind)

#001F59

Tritanopia (blue-blind)

#002A36

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #17185a;
/* rgb */ color: rgb(23, 24, 90);
/* oklch */ color: oklch(26.1% 0.115 274.3);

Tailwind

colors: {
  custom: {
    50: '#5f5589',
    500: '#17185a',
    950: '#000000',
  },
}

SCSS

$custom: #17185a;
$custom-light: #5f5589;
$custom-dark: #000000;

JSON

{
  "hex": "#17185a",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 90
  },
  "hsl": {
    "h": 239.104,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.26051,
    "c": 0.11486,
    "h": 274.3
  },
  "luminance": 0.01574
}

Semantic roles & 50–950 ramp

primary

#17185A

secondary

#91903C

accent

#E045E2

background

#F5F4F8

surface

#EAE8F0

border

#C6C4CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #17185A

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

Preview Lab → · Contrast checker → · Palette generator →