#171561#171561

#171561 is a dark, vivid blue. Relative luminance 0.016; OKLCH L 26.3% C 0.128 H 274.2°. Best body text is #FFFFFF at 15.95:1 contrast (WCAG AA passes).

Color values

HEX	#171561
RGB	rgb(23, 21, 97)
HSL	hsl(242, 64%, 23%)
HSV	hsv(242, 78%, 38%)
CMYK	cmyk(76.3%, 78.4%, 0%, 62%)
CIE-LAB	lab(13.12, 28.53, -44.24)
CIE-LCH	lch(13.12, 52.64, 302.81°)
OKLab	oklab(26.32% 0.0095 -0.128)
OKLCH	oklch(26.32% 0.128 274.2)
XYZ	xyz(2.7785, 1.5813, 11.4657)
Luminance	0.0158 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171561 #5F6115

analogous

#153961 #171561 #3D1561

triadic

#171561 #611715 #156117

tetradic

#171561 #611539 #5F6115 #15613D

square

#171561 #611539 #5F6115 #15613D

split-complementary

#171561 #613D15 #396115

monochromatic

#060519 #0B0A2F #171561 #232093 #2F2BC6

Accessibility & contrast

On white

15.95

#171561 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.32

#171561 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171561

15.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171561	#FFFFFF	#000000	##FFFFFF
##171561	1.00	15.95	1.32	15.95
#FFFFFF	15.95	1.00	21.00	1.00
#000000	1.32	21.00	1.00	21.00
##FFFFFF	15.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002563

Deuteranopia (green-blind)

#001E60

Tritanopia (blue-blind)

#002B39

Achromatopsia (no color)

#222222

Design tokens & code

CSS

--color: #171561;
/* rgb */ color: rgb(23, 21, 97);
/* oklch */ color: oklch(26.3% 0.128 274.2);

Tailwind

colors: {
  custom: {
    50: '#61538f',
    500: '#171561',
    950: '#000000',
  },
}

SCSS

$custom: #171561;
$custom-light: #61538f;
$custom-dark: #000000;

JSON

{
  "hex": "#171561",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 97
  },
  "hsl": {
    "h": 241.579,
    "s": 64.407,
    "l": 23.137
  },
  "oklch": {
    "l": 0.26317,
    "c": 0.12831,
    "h": 274.2
  },
  "luminance": 0.01582
}

Semantic roles & 50–950 ramp

primary

#171561

secondary

#96983A

accent

#E740E3

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#06020C

muted

#7A787D

Preview Lab

Preview with #171561

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

Preview Lab → · Contrast checker → · Palette generator →