#171E5D#171E5D

#171E5D is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.5% C 0.111 H 271.9°. Best body text is #FFFFFF at 15.22:1 contrast (WCAG AA passes).

Color values

HEX	#171E5D
RGB	rgb(23, 30, 93)
HSL	hsl(234, 60%, 23%)
HSV	hsv(234, 75%, 36%)
CMYK	cmyk(75.3%, 67.7%, 0%, 63.5%)
CIE-LAB	lab(14.96, 20.85, -38.55)
CIE-LCH	lch(14.96, 43.83, 298.41°)
OKLab	oklab(27.52% 0.0037 -0.1113)
OKLCH	oklch(27.52% 0.111 271.9)
XYZ	xyz(2.7927, 1.9007, 10.5735)
Luminance	0.0190 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E5D #5D5617

analogous

#17415D #171E5D #33175D

triadic

#171E5D #5D171E #1E5D17

tetradic

#171E5D #5D1741 #5D5617 #175D33

square

#171E5D #5D1741 #5D5617 #175D33

split-complementary

#171E5D #5D3317 #415D17

monochromatic

#060819 #0B0E2C #171E5D #232E8E #2F3EBF

Accessibility & contrast

On white

15.22

#171E5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171E5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E5D

15.22:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E5D	#FFFFFF	#000000	##FFFFFF
##171E5D	1.00	15.22	1.38	15.22
#FFFFFF	15.22	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.22	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00295F

Deuteranopia (green-blind)

#00225C

Tritanopia (blue-blind)

#002E3A

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171e5d;
/* rgb */ color: rgb(23, 30, 93);
/* oklch */ color: oklch(27.5% 0.111 271.9);

Tailwind

colors: {
  custom: {
    50: '#5f598c',
    500: '#171e5d',
    950: '#000000',
  },
}

SCSS

$custom: #171e5d;
$custom-light: #5f598c;
$custom-dark: #000000;

JSON

{
  "hex": "#171e5d",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 93
  },
  "hsl": {
    "h": 234,
    "s": 60.345,
    "l": 22.745
  },
  "oklch": {
    "l": 0.27521,
    "c": 0.11138,
    "h": 271.9
  },
  "luminance": 0.01901
}

Semantic roles & 50–950 ramp

primary

#171E5D

secondary

#948B3C

accent

#D444E3

background

#F5F5F8

surface

#EAE9F0

border

#C6C5CB

text

#05030C

muted

#79787D

Preview Lab

Preview with #171E5D

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

Preview Lab → · Contrast checker → · Palette generator →