#171955#171955

#171955 is a dark, moderate blue. Relative luminance 0.015; OKLCH L 25.7% C 0.106 H 274.6°. Best body text is #FFFFFF at 16.07:1 contrast (WCAG AA passes).

Color values

HEX	#171955
RGB	rgb(23, 25, 85)
HSL	hsl(238, 57%, 21%)
HSV	hsv(238, 73%, 33%)
CMYK	cmyk(72.9%, 70.6%, 0%, 66.7%)
CIE-LAB	lab(12.82, 21.25, -36.67)
CIE-LCH	lch(12.82, 42.38, 300.09°)
OKLab	oklab(25.71% 0.0085 -0.1058)
OKLCH	oklch(25.71% 0.106 274.6)
XYZ	xyz(2.3401, 1.5331, 8.7652)
Luminance	0.0153 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171955 #555317

analogous

#173855 #171955 #341755

triadic

#171955 #551719 #195517

tetradic

#171955 #551738 #555317 #175534

square

#171955 #551738 #555317 #175534

split-complementary

#171955 #553417 #385517

monochromatic

#070718 #0A0B25 #171955 #242785 #3135B5

Accessibility & contrast

On white

16.07

#171955 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.31

#171955 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171955

16.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171955	#FFFFFF	#000000	##FFFFFF
##171955	1.00	16.07	1.31	16.07
#FFFFFF	16.07	1.00	21.00	1.00
#000000	1.31	21.00	1.00	21.00
##FFFFFF	16.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002457

Deuteranopia (green-blind)

#001E54

Tritanopia (blue-blind)

#002934

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171955;
/* rgb */ color: rgb(23, 25, 85);
/* oklch */ color: oklch(25.7% 0.106 274.6);

Tailwind

colors: {
  custom: {
    50: '#5e5586',
    500: '#171955',
    950: '#000000',
  },
}

SCSS

$custom: #171955;
$custom-light: #5e5586;
$custom-dark: #000000;

JSON

{
  "hex": "#171955",
  "rgb": {
    "r": 23,
    "g": 25,
    "b": 85
  },
  "hsl": {
    "h": 238.065,
    "s": 57.407,
    "l": 21.176
  },
  "oklch": {
    "l": 0.25712,
    "c": 0.10618,
    "h": 274.6
  },
  "luminance": 0.01533
}

Semantic roles & 50–950 ramp

primary

#171955

secondary

#8C893C

accent

#DC47E1

background

#F5F5F8

surface

#EAE9EF

border

#C6C5CA

text

#05030B

muted

#79787C

Preview Lab

Preview with #171955

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

Preview Lab → · Contrast checker → · Palette generator →