#171E41#171E41

#171E41 is a very dark, moderate blue. Relative luminance 0.015; OKLCH L 25.0% C 0.067 H 272.2°. Best body text is #FFFFFF at 16.17:1 contrast (WCAG AA passes).

Color values

HEX	#171E41
RGB	rgb(23, 30, 65)
HSL	hsl(230, 48%, 17%)
HSV	hsv(230, 65%, 25%)
CMYK	cmyk(64.6%, 53.8%, 0%, 74.5%)
CIE-LAB	lab(12.56, 9.47, -23.30)
CIE-LCH	lch(12.56, 25.15, 292.12°)
OKLab	oklab(24.97% 0.0026 -0.0665)
OKLCH	oklch(24.97% 0.067 272.2)
XYZ	xyz(1.7714, 1.4922, 5.1947)
Luminance	0.0149 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E41 #413A17

analogous

#173341 #171E41 #251741

triadic

#171E41 #41171E #1E4117

tetradic

#171E41 #411733 #413A17 #174125

square

#171E41 #411733 #413A17 #174125

split-complementary

#171E41 #412517 #334117

monochromatic

#080A17 #080A17 #171E41 #27336E #37489B

Accessibility & contrast

On white

16.17

#171E41 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#171E41 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E41

16.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E41	#FFFFFF	#000000	##FFFFFF
##171E41	1.00	16.17	1.30	16.17
#FFFFFF	16.17	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D2342

Deuteranopia (green-blind)

#071F40

Tritanopia (blue-blind)

#01262C

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #171e41;
/* rgb */ color: rgb(23, 30, 65);
/* oklch */ color: oklch(25.0% 0.067 272.2);

Tailwind

colors: {
  custom: {
    50: '#585976',
    500: '#171e41',
    950: '#000000',
  },
}

SCSS

$custom: #171e41;
$custom-light: #585976;
$custom-dark: #000000;

JSON

{
  "hex": "#171e41",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 65
  },
  "hsl": {
    "h": 230,
    "s": 47.727,
    "l": 17.255
  },
  "oklch": {
    "l": 0.24974,
    "c": 0.06653,
    "h": 272.2
  },
  "luminance": 0.01492
}

Semantic roles & 50–950 ramp

primary

#171E41

secondary

#786E3C

accent

#C150D7

background

#F5F5F7

surface

#E9E9ED

border

#C5C5C8

text

#030308

muted

#78787B

Preview Lab

Preview with #171E41

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

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