#171A75#171A75

#171A75 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.4% C 0.150 H 271.2°. Best body text is #FFFFFF at 14.57:1 contrast (WCAG AA passes).

Color values

HEX	#171A75
RGB	rgb(23, 26, 117)
HSL	hsl(238, 67%, 27%)
HSV	hsv(238, 80%, 46%)
CMYK	cmyk(80.3%, 77.8%, 0%, 54.1%)
CIE-LAB	lab(16.53, 32.73, -51.71)
CIE-LCH	lch(16.53, 61.19, 302.33°)
OKLab	oklab(29.43% 0.0031 -0.1497)
OKLCH	oklch(29.43% 0.15 271.2)
XYZ	xyz(3.9325, 2.2049, 17.0445)
Luminance	0.0221 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A75 #757217

analogous

#174975 #171A75 #431775

triadic

#171A75 #75171A #1A7517

tetradic

#171A75 #751749 #757217 #177543

square

#171A75 #751749 #757217 #177543

split-complementary

#171A75 #754317 #497517

monochromatic

#05061A #0D0F42 #171A75 #2125A8 #3035D6

Accessibility & contrast

On white

14.57

#171A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A75

14.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A75	#FFFFFF	#000000	##FFFFFF
##171A75	1.00	14.57	1.44	14.57
#FFFFFF	14.57	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D78

Deuteranopia (green-blind)

#002473

Tritanopia (blue-blind)

#003546

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171a75;
/* rgb */ color: rgb(23, 26, 117);
/* oklch */ color: oklch(29.4% 0.150 271.2);

Tailwind

colors: {
  custom: {
    50: '#66589e',
    500: '#171a75',
    950: '#000000',
  },
}

SCSS

$custom: #171a75;
$custom-light: #66589e;
$custom-dark: #000000;

JSON

{
  "hex": "#171a75",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 117
  },
  "hsl": {
    "h": 238.085,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.29425,
    "c": 0.14974,
    "h": 271.2
  },
  "luminance": 0.02205
}

Semantic roles & 50–950 ramp

primary

#171A75

secondary

#AAA73D

accent

#E53EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171A75

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

Preview Lab → · Contrast checker → · Palette generator →