#171D76#171D76

#171D76 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.0% C 0.148 H 270.6°. Best body text is #FFFFFF at 14.25:1 contrast (WCAG AA passes).

Color values

HEX	#171D76
RGB	rgb(23, 29, 118)
HSL	hsl(236, 67%, 28%)
HSV	hsv(236, 81%, 46%)
CMYK	cmyk(80.5%, 75.4%, 0%, 53.7%)
CIE-LAB	lab(17.31, 31.22, -51.05)
CIE-LCH	lch(17.31, 59.84, 301.44°)
OKLab	oklab(30.02% 0.0015 -0.1478)
OKLCH	oklch(30.02% 0.148 270.6)
XYZ	xyz(4.0616, 2.3684, 17.3791)
Luminance	0.0237 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171D76 #767017

analogous

#174C76 #171D76 #411776

triadic

#171D76 #76171D #1D7617

tetradic

#171D76 #76174C #767017 #177641

square

#171D76 #76174C #767017 #177641

split-complementary

#171D76 #764117 #4C7617

monochromatic

#05061A #0D1043 #171D76 #212AA9 #313BD7

Accessibility & contrast

On white

14.25

#171D76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.47

#171D76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171D76

14.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171D76	#FFFFFF	#000000	##FFFFFF
##171D76	1.00	14.25	1.47	14.25
#FFFFFF	14.25	1.00	21.00	1.00
#000000	1.47	21.00	1.00	21.00
##FFFFFF	14.25	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F79

Deuteranopia (green-blind)

#002674

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171d76;
/* rgb */ color: rgb(23, 29, 118);
/* oklch */ color: oklch(30.0% 0.148 270.6);

Tailwind

colors: {
  custom: {
    50: '#665a9f',
    500: '#171d76',
    950: '#000000',
  },
}

SCSS

$custom: #171d76;
$custom-light: #665a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#171d76",
  "rgb": {
    "r": 23,
    "g": 29,
    "b": 118
  },
  "hsl": {
    "h": 236.211,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.30018,
    "c": 0.14784,
    "h": 270.6
  },
  "luminance": 0.02369
}

Semantic roles & 50–950 ramp

primary

#171D76

secondary

#ABA43E

accent

#DF3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #171D76

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

Preview Lab → · Contrast checker → · Palette generator →