#17255C#17255C

#17255C is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.9% C 0.100 H 268.6°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#17255C
RGB	rgb(23, 37, 92)
HSL	hsl(228, 60%, 23%)
HSV	hsv(228, 75%, 36%)
CMYK	cmyk(75%, 59.8%, 0%, 63.9%)
CIE-LAB	lab(16.88, 15.33, -34.75)
CIE-LCH	lch(16.88, 37.98, 293.80°)
OKLab	oklab(28.92% -0.0025 -0.1001)
OKLCH	oklch(28.92% 0.1 268.6)
XYZ	xyz(2.9460, 2.2777, 10.4075)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17255C #5C4E17

analogous

#17485C #17255C #2B175C

triadic

#17255C #5C1725 #255C17

tetradic

#17255C #5C1748 #5C4E17 #175C2B

square

#17255C #5C1748 #5C4E17 #175C2B

split-complementary

#17255C #5C2B17 #485C17

monochromatic

#060A18 #0B112B #17255C #23398D #2F4CBE

Accessibility & contrast

On white

14.43

#17255C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#17255C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17255C

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17255C	#FFFFFF	#000000	##FFFFFF
##17255C	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5E

Deuteranopia (green-blind)

#00275B

Tritanopia (blue-blind)

#00323C

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17255c;
/* rgb */ color: rgb(23, 37, 92);
/* oklch */ color: oklch(28.9% 0.100 268.6);

Tailwind

colors: {
  custom: {
    50: '#5e5f8b',
    500: '#17255c',
    950: '#000000',
  },
}

SCSS

$custom: #17255c;
$custom-light: #5e5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#17255c",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 92
  },
  "hsl": {
    "h": 227.826,
    "s": 60,
    "l": 22.549
  },
  "oklch": {
    "l": 0.28923,
    "c": 0.10009,
    "h": 268.6
  },
  "luminance": 0.02278
}

Semantic roles & 50–950 ramp

primary

#17255C

secondary

#93813C

accent

#C345E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #17255C

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

Preview Lab → · Contrast checker → · Palette generator →