#17255A#17255A

#17255A is a dark, moderate blue. Relative luminance 0.022; OKLCH L 28.7% C 0.097 H 268.5°. Best body text is #FFFFFF at 14.50:1 contrast (WCAG AA passes).

Color values

HEX	#17255A
RGB	rgb(23, 37, 90)
HSL	hsl(227, 59%, 22%)
HSV	hsv(227, 74%, 35%)
CMYK	cmyk(74.4%, 58.9%, 0%, 64.7%)
CIE-LAB	lab(16.71, 14.50, -33.69)
CIE-LCH	lch(16.71, 36.68, 293.29°)
OKLab	oklab(28.74% -0.0026 -0.0969)
OKLCH	oklch(28.74% 0.097 268.5)
XYZ	xyz(2.8597, 2.2432, 9.9531)
Luminance	0.0224 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17255A #5A4C17

analogous

#17475A #17255A #2B175A

triadic

#17255A #5A1725 #255A17

tetradic

#17255A #5A1747 #5A4C17 #175A2B

square

#17255A #5A1747 #5A4C17 #175A2B

split-complementary

#17255A #5A2B17 #475A17

monochromatic

#060A18 #0B1129 #17255A #23398B #304DBB

Accessibility & contrast

On white

14.50

#17255A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.45

#17255A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17255A

14.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17255A	#FFFFFF	#000000	##FFFFFF
##17255A	1.00	14.50	1.45	14.50
#FFFFFF	14.50	1.00	21.00	1.00
#000000	1.45	21.00	1.00	21.00
##FFFFFF	14.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C5C

Deuteranopia (green-blind)

#002659

Tritanopia (blue-blind)

#00323B

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #17255a;
/* rgb */ color: rgb(23, 37, 90);
/* oklch */ color: oklch(28.7% 0.097 268.5);

Tailwind

colors: {
  custom: {
    50: '#5e5f89',
    500: '#17255a',
    950: '#000000',
  },
}

SCSS

$custom: #17255a;
$custom-light: #5e5f89;
$custom-dark: #000000;

JSON

{
  "hex": "#17255a",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 90
  },
  "hsl": {
    "h": 227.463,
    "s": 59.292,
    "l": 22.157
  },
  "oklch": {
    "l": 0.28745,
    "c": 0.09697,
    "h": 268.5
  },
  "luminance": 0.02243
}

Semantic roles & 50–950 ramp

primary

#17255A

secondary

#917F3C

accent

#C245E2

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040B

muted

#79797C

Preview Lab

Preview with #17255A

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

Preview Lab → · Contrast checker → · Palette generator →