#170D5F#170D5F

#170D5F is a very dark, vivid blue. Relative luminance 0.013; OKLCH L 24.9% C 0.134 H 276.0°. Best body text is #FFFFFF at 16.68:1 contrast (WCAG AA passes).

Color values

HEX	#170D5F
RGB	rgb(23, 13, 95)
HSL	hsl(247, 76%, 21%)
HSV	hsv(247, 86%, 37%)
CMYK	cmyk(75.8%, 86.3%, 0%, 62.7%)
CIE-LAB	lab(11.25, 32.47, -46.00)
CIE-LCH	lch(11.25, 56.31, 305.22°)
OKLab	oklab(24.93% 0.0141 -0.133)
OKLCH	oklch(24.93% 0.134 276)
XYZ	xyz(2.5622, 1.2960, 10.9394)
Luminance	0.0130 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170D5F #555F0D

analogous

#0D2C5F #170D5F #400D5F

triadic

#170D5F #5F170D #0D5F17

tetradic

#170D5F #5F0D2C #555F0D #0D5F40

square

#170D5F #5F0D2C #555F0D #0D5F40

split-complementary

#170D5F #5F400D #2C5F0D

monochromatic

#07041B #0A0629 #170D5F #241495 #311CCB

Accessibility & contrast

On white

16.68

#170D5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.26

#170D5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170D5F

16.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170D5F	#FFFFFF	#000000	##FFFFFF
##170D5F	1.00	16.68	1.26	16.68
#FFFFFF	16.68	1.00	21.00	1.00
#000000	1.26	21.00	1.00	21.00
##FFFFFF	16.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002161

Deuteranopia (green-blind)

#001A5E

Tritanopia (blue-blind)

#002737

Achromatopsia (no color)

#1E1E1E

Design tokens & code

CSS

--color: #170d5f;
/* rgb */ color: rgb(23, 13, 95);
/* oklch */ color: oklch(24.9% 0.134 276.0);

Tailwind

colors: {
  custom: {
    50: '#624e8d',
    500: '#170d5f',
    950: '#000000',
  },
}

SCSS

$custom: #170d5f;
$custom-light: #624e8d;
$custom-dark: #000000;

JSON

{
  "hex": "#170d5f",
  "rgb": {
    "r": 23,
    "g": 13,
    "b": 95
  },
  "hsl": {
    "h": 247.317,
    "s": 75.926,
    "l": 21.176
  },
  "oklch": {
    "l": 0.24934,
    "c": 0.1337,
    "h": 276
  },
  "luminance": 0.01296
}

Semantic roles & 50–950 ramp

primary

#170D5F

secondary

#8C992F

accent

#F335DB

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #170D5F

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

Preview Lab → · Contrast checker → · Palette generator →