#171F67#171F67

#171F67 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.7% C 0.125 H 271.0°. Best body text is #FFFFFF at 14.70:1 contrast (WCAG AA passes).

Color values

HEX	#171F67
RGB	rgb(23, 31, 103)
HSL	hsl(234, 63%, 25%)
HSV	hsv(234, 78%, 40%)
CMYK	cmyk(77.7%, 69.9%, 0%, 59.6%)
CIE-LAB	lab(16.21, 24.12, -43.12)
CIE-LCH	lch(16.21, 49.41, 299.22°)
OKLab	oklab(28.74% 0.0022 -0.1247)
OKLCH	oklch(28.74% 0.125 271)
XYZ	xyz(3.2907, 2.1411, 13.0692)
Luminance	0.0214 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F67 #675F17

analogous

#174767 #171F67 #371767

triadic

#171F67 #67171F #1F6717

tetradic

#171F67 #671747 #675F17 #176737

square

#171F67 #671747 #675F17 #176737

split-complementary

#171F67 #673717 #476717

monochromatic

#060819 #0C1035 #171F67 #222E99 #2D3DCB

Accessibility & contrast

On white

14.70

#171F67 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171F67 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F67

14.70:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F67	#FFFFFF	#000000	##FFFFFF
##171F67	1.00	14.70	1.43	14.70
#FFFFFF	14.70	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.70	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C69

Deuteranopia (green-blind)

#002466

Tritanopia (blue-blind)

#003240

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171f67;
/* rgb */ color: rgb(23, 31, 103);
/* oklch */ color: oklch(28.7% 0.125 271.0);

Tailwind

colors: {
  custom: {
    50: '#625a93',
    500: '#171f67',
    950: '#000000',
  },
}

SCSS

$custom: #171f67;
$custom-light: #625a93;
$custom-dark: #000000;

JSON

{
  "hex": "#171f67",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 103
  },
  "hsl": {
    "h": 234,
    "s": 63.492,
    "l": 24.706
  },
  "oklch": {
    "l": 0.28741,
    "c": 0.12471,
    "h": 271
  },
  "luminance": 0.02141
}

Semantic roles & 50–950 ramp

primary

#171F67

secondary

#9D943D

accent

#D641E7

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06040D

muted

#7A797E

Preview Lab

Preview with #171F67

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

Preview Lab → · Contrast checker → · Palette generator →