#171D61#171D61

#171D61 is a dark, moderate blue. Relative luminance 0.019; OKLCH L 27.7% C 0.119 H 272.0°. Best body text is #FFFFFF at 15.16:1 contrast (WCAG AA passes).

Color values

HEX	#171D61
RGB	rgb(23, 29, 97)
HSL	hsl(235, 62%, 24%)
HSV	hsv(235, 76%, 38%)
CMYK	cmyk(76.3%, 70.1%, 0%, 62%)
CIE-LAB	lab(15.08, 23.15, -41.01)
CIE-LCH	lch(15.08, 47.10, 299.45°)
OKLab	oklab(27.73% 0.0042 -0.1185)
OKLCH	oklch(27.73% 0.119 272)
XYZ	xyz(2.9497, 1.9237, 11.5228)
Luminance	0.0192 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D61 #615B17

analogous

#174261 #171D61 #361761

triadic

#171D61 #61171D #1D6117

tetradic

#171D61 #611742 #615B17 #176136

square

#171D61 #611742 #615B17 #176136

split-complementary

#171D61 #613617 #426117

monochromatic

#060719 #0B0E30 #171D61 #232C92 #2E3BC4

Accessibility & contrast

On white

15.16

#171D61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171D61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D61

15.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D61	#FFFFFF	#000000	##FFFFFF
##171D61	1.00	15.16	1.38	15.16
#FFFFFF	15.16	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002963

Deuteranopia (green-blind)

#002260

Tritanopia (blue-blind)

#002F3C

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171d61;
/* rgb */ color: rgb(23, 29, 97);
/* oklch */ color: oklch(27.7% 0.119 272.0);

Tailwind

colors: {
  custom: {
    50: '#61598f',
    500: '#171d61',
    950: '#000000',
  },
}

SCSS

$custom: #171d61;
$custom-light: #61598f;
$custom-dark: #000000;

JSON

{
  "hex": "#171d61",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 97
  },
  "hsl": {
    "h": 235.135,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27733,
    "c": 0.1186,
    "h": 272
  },
  "luminance": 0.01924
}

Semantic roles & 50–950 ramp

primary

#171D61

secondary

#98903C

accent

#D843E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171D61

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

Preview Lab → · Contrast checker → · Palette generator →