#17255D#17255D

#17255D is a dark, moderate blue. Relative luminance 0.023; OKLCH L 29.0% C 0.102 H 268.6°. Best body text is #FFFFFF at 14.39:1 contrast (WCAG AA passes).

Color values

HEX	#17255D
RGB	rgb(23, 37, 93)
HSL	hsl(228, 60%, 23%)
HSV	hsv(228, 75%, 36%)
CMYK	cmyk(75.3%, 60.2%, 0%, 63.5%)
CIE-LAB	lab(16.97, 15.74, -35.28)
CIE-LCH	lch(16.97, 38.63, 294.05°)
OKLab	oklab(29.01% -0.0024 -0.1016)
OKLCH	oklch(29.01% 0.102 268.6)
XYZ	xyz(2.9900, 2.2953, 10.6393)
Luminance	0.0230 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17255D #5D4F17

analogous

#17485D #17255D #2C175D

triadic

#17255D #5D1725 #255D17

tetradic

#17255D #5D1748 #5D4F17 #175D2C

square

#17255D #5D1748 #5D4F17 #175D2C

split-complementary

#17255D #5D2C17 #485D17

monochromatic

#060A19 #0B112C #17255D #23398E #2F4CBF

Accessibility & contrast

On white

14.39

#17255D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#17255D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17255D

14.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17255D	#FFFFFF	#000000	##FFFFFF
##17255D	1.00	14.39	1.46	14.39
#FFFFFF	14.39	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D5F

Deuteranopia (green-blind)

#00275C

Tritanopia (blue-blind)

#00333D

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #17255d;
/* rgb */ color: rgb(23, 37, 93);
/* oklch */ color: oklch(29.0% 0.102 268.6);

Tailwind

colors: {
  custom: {
    50: '#5f5f8b',
    500: '#17255d',
    950: '#000000',
  },
}

SCSS

$custom: #17255d;
$custom-light: #5f5f8b;
$custom-dark: #000000;

JSON

{
  "hex": "#17255d",
  "rgb": {
    "r": 23,
    "g": 37,
    "b": 93
  },
  "hsl": {
    "h": 228,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.29013,
    "c": 0.10164,
    "h": 268.6
  },
  "luminance": 0.02296
}

Semantic roles & 50–950 ramp

primary

#17255D

secondary

#94823C

accent

#C444E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05040C

muted

#79797D

Preview Lab

Preview with #17255D

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

Preview Lab → · Contrast checker → · Palette generator →