#17205B#17205B

#17205B is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.7% C 0.106 H 271.1°. Best body text is #FFFFFF at 15.06:1 contrast (WCAG AA passes).

Color values

HEX	#17205B
RGB	rgb(23, 32, 91)
HSL	hsl(232, 60%, 22%)
HSV	hsv(232, 75%, 36%)
CMYK	cmyk(74.7%, 64.8%, 0%, 64.3%)
CIE-LAB	lab(15.33, 18.59, -36.61)
CIE-LCH	lch(15.33, 41.06, 296.93°)
OKLab	oklab(27.74% 0.0021 -0.1056)
OKLCH	oklch(27.74% 0.106 271.1)
XYZ	xyz(2.7575, 1.9702, 10.1305)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17205B #5B5217

analogous

#17425B #17205B #30175B

triadic

#17205B #5B1720 #205B17

tetradic

#17205B #5B1742 #5B5217 #175B30

square

#17205B #5B1742 #5B5217 #175B30

split-complementary

#17205B #5B3017 #425B17

monochromatic

#060918 #0B0F2A #17205B #23318C #3042BD

Accessibility & contrast

On white

15.06

#17205B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#17205B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17205B

15.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17205B	#FFFFFF	#000000	##FFFFFF
##17205B	1.00	15.06	1.39	15.06
#FFFFFF	15.06	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A5D

Deuteranopia (green-blind)

#00235A

Tritanopia (blue-blind)

#002F3A

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #17205b;
/* rgb */ color: rgb(23, 32, 91);
/* oklch */ color: oklch(27.7% 0.106 271.1);

Tailwind

colors: {
  custom: {
    50: '#5f5b8a',
    500: '#17205b',
    950: '#000000',
  },
}

SCSS

$custom: #17205b;
$custom-light: #5f5b8a;
$custom-dark: #000000;

JSON

{
  "hex": "#17205b",
  "rgb": {
    "r": 23,
    "g": 32,
    "b": 91
  },
  "hsl": {
    "h": 232.059,
    "s": 59.649,
    "l": 22.353
  },
  "oklch": {
    "l": 0.27738,
    "c": 0.10561,
    "h": 271.1
  },
  "luminance": 0.01971
}

Semantic roles & 50–950 ramp

primary

#17205B

secondary

#92863C

accent

#CE45E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #17205B

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

Preview Lab → · Contrast checker → · Palette generator →