#171D67#171D67

#171D67 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.4% C 0.127 H 271.6°. Best body text is #FFFFFF at 14.91:1 contrast (WCAG AA passes).

Color values

HEX	#171D67
RGB	rgb(23, 29, 103)
HSL	hsl(236, 63%, 25%)
HSV	hsv(236, 78%, 40%)
CMYK	cmyk(77.7%, 71.8%, 0%, 59.6%)
CIE-LAB	lab(15.69, 25.51, -43.97)
CIE-LCH	lch(15.69, 50.83, 300.12°)
OKLab	oklab(28.37% 0.0036 -0.1272)
OKLCH	oklch(28.37% 0.127 271.6)
XYZ	xyz(3.2401, 2.0398, 13.0523)
Luminance	0.0204 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D67 #676117

analogous

#174567 #171D67 #391767

triadic

#171D67 #67171D #1D6717

tetradic

#171D67 #671745 #676117 #176739

square

#171D67 #671745 #676117 #176739

split-complementary

#171D67 #673917 #456717

monochromatic

#060719 #0C0F35 #171D67 #222B99 #2D39CB

Accessibility & contrast

On white

14.91

#171D67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171D67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D67

14.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D67	#FFFFFF	#000000	##FFFFFF
##171D67	1.00	14.91	1.41	14.91
#FFFFFF	14.91	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B69

Deuteranopia (green-blind)

#002366

Tritanopia (blue-blind)

#00313F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171d67;
/* rgb */ color: rgb(23, 29, 103);
/* oklch */ color: oklch(28.4% 0.127 271.6);

Tailwind

colors: {
  custom: {
    50: '#625993',
    500: '#171d67',
    950: '#000000',
  },
}

SCSS

$custom: #171d67;
$custom-light: #625993;
$custom-dark: #000000;

JSON

{
  "hex": "#171d67",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 103
  },
  "hsl": {
    "h": 235.5,
    "s": 63.492,
    "l": 24.706
  },
  "oklch": {
    "l": 0.28366,
    "c": 0.12722,
    "h": 271.6
  },
  "luminance": 0.0204
}

Semantic roles & 50–950 ramp

primary

#171D67

secondary

#9D963D

accent

#DA41E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171D67

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

Preview Lab → · Contrast checker → · Palette generator →