#171F50#171F50

#171F50 is a dark, moderate blue. Relative luminance 0.017; OKLCH L 26.5% C 0.090 H 271.8°. Best body text is #FFFFFF at 15.58:1 contrast (WCAG AA passes).

Color values

HEX	#171F50
RGB	rgb(23, 31, 80)
HSL	hsl(232, 55%, 20%)
HSV	hsv(232, 71%, 31%)
CMYK	cmyk(71.2%, 61.2%, 0%, 68.6%)
CIE-LAB	lab(14.07, 14.84, -31.24)
CIE-LCH	lch(14.07, 34.58, 295.41°)
OKLab	oklab(26.49% 0.0029 -0.0898)
OKLCH	oklch(26.49% 0.09 271.8)
XYZ	xyz(2.2908, 1.7411, 7.8032)
Luminance	0.0174 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F50 #504817

analogous

#173B50 #171F50 #2B1750

triadic

#171F50 #50171F #1F5017

tetradic

#171F50 #50173B #504817 #17502B

square

#171F50 #50173B #504817 #17502B

split-complementary

#171F50 #502B17 #3B5017

monochromatic

#070918 #090D20 #171F50 #253180 #3244AF

Accessibility & contrast

On white

15.58

#171F50 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.35

#171F50 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F50

15.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F50	#FFFFFF	#000000	##FFFFFF
##171F50	1.00	15.58	1.35	15.58
#FFFFFF	15.58	1.00	21.00	1.00
#000000	1.35	21.00	1.00	21.00
##FFFFFF	15.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002652

Deuteranopia (green-blind)

#00214F

Tritanopia (blue-blind)

#002B34

Achromatopsia (no color)

#242424

Design tokens & code

CSS

--color: #171f50;
/* rgb */ color: rgb(23, 31, 80);
/* oklch */ color: oklch(26.5% 0.090 271.8);

Tailwind

colors: {
  custom: {
    50: '#5c5a81',
    500: '#171f50',
    950: '#000000',
  },
}

SCSS

$custom: #171f50;
$custom-light: #5c5a81;
$custom-dark: #000000;

JSON

{
  "hex": "#171f50",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 80
  },
  "hsl": {
    "h": 231.579,
    "s": 55.34,
    "l": 20.196
  },
  "oklch": {
    "l": 0.26491,
    "c": 0.08987,
    "h": 271.8
  },
  "luminance": 0.01741
}

Semantic roles & 50–950 ramp

primary

#171F50

secondary

#877D3C

accent

#CA49DF

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04030A

muted

#79787C

Preview Lab

Preview with #171F50

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

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