#170F5D#170F5D

#170F5D is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.9% C 0.129 H 276.1°. Best body text is #FFFFFF at 16.63:1 contrast (WCAG AA passes).

Color values

HEX	#170F5D
RGB	rgb(23, 15, 93)
HSL	hsl(246, 72%, 21%)
HSV	hsv(246, 84%, 36%)
CMYK	cmyk(75.3%, 83.9%, 0%, 63.5%)
CIE-LAB	lab(11.37, 30.70, -44.45)
CIE-LCH	lch(11.37, 54.02, 304.63°)
OKLab	oklab(24.95% 0.0137 -0.1285)
OKLCH	oklch(24.95% 0.129 276.1)
XYZ	xyz(2.4993, 1.3139, 10.4757)
Luminance	0.0131 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F5D #555D0F

analogous

#0F2E5D #170F5D #3E0F5D

triadic

#170F5D #5D170F #0F5D17

tetradic

#170F5D #5D0F2E #555D0F #0F5D3E

square

#170F5D #5D0F2E #555D0F #0F5D3E

split-complementary

#170F5D #5D3E0F #2E5D0F

monochromatic

#07041A #0A0628 #170F5D #241792 #3120C6

Accessibility & contrast

On white

16.63

#170F5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#170F5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F5D

16.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F5D	#FFFFFF	#000000	##FFFFFF
##170F5D	1.00	16.63	1.26	16.63
#FFFFFF	16.63	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.63	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00215F

Deuteranopia (green-blind)

#001B5C

Tritanopia (blue-blind)

#002736

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #170f5d;
/* rgb */ color: rgb(23, 15, 93);
/* oklch */ color: oklch(24.9% 0.129 276.1);

Tailwind

colors: {
  custom: {
    50: '#614f8c',
    500: '#170f5d',
    950: '#000000',
  },
}

SCSS

$custom: #170f5d;
$custom-light: #614f8c;
$custom-dark: #000000;

JSON

{
  "hex": "#170f5d",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 93
  },
  "hsl": {
    "h": 246.154,
    "s": 72.222,
    "l": 21.176
  },
  "oklch": {
    "l": 0.24948,
    "c": 0.12923,
    "h": 276.1
  },
  "luminance": 0.01314
}

Semantic roles & 50–950 ramp

primary

#170F5D

secondary

#8C9631

accent

#EF39DC

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #170F5D

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

Preview Lab → · Contrast checker → · Palette generator →