#171A8E#171A8E

#171A8E is a dark, vivid blue. Relative luminance 0.029; OKLCH L 32.4% C 0.181 H 269.4°. Best body text is #FFFFFF at 13.34:1 contrast (WCAG AA passes).

Color values

HEX	#171A8E
RGB	rgb(23, 26, 142)
HSL	hsl(238, 72%, 32%)
HSV	hsv(238, 84%, 56%)
CMYK	cmyk(83.8%, 81.7%, 0%, 44.3%)
CIE-LAB	lab(19.53, 41.46, -62.58)
CIE-LCH	lch(19.53, 75.06, 303.53°)
OKLab	oklab(32.41% -0.0017 -0.1812)
OKLCH	oklch(32.41% 0.181 269.4)
XYZ	xyz(5.6036, 2.8733, 25.8452)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A8E #8E8B17

analogous

#17568E #171A8E #4F178E

triadic

#171A8E #8E171A #1A8E17

tetradic

#171A8E #8E1756 #8E8B17 #178E4F

square

#171A8E #8E1756 #8E8B17 #178E4F

split-complementary

#171A8E #8E4F17 #568E17

monochromatic

#060725 #0E1059 #171A8E #2024C3 #3F43E0

Accessibility & contrast

On white

13.34

#171A8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#171A8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A8E

13.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A8E	#FFFFFF	#000000	##FFFFFF
##171A8E	1.00	13.34	1.57	13.34
#FFFFFF	13.34	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003591

Deuteranopia (green-blind)

#00298C

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #171a8e;
/* rgb */ color: rgb(23, 26, 142);
/* oklch */ color: oklch(32.4% 0.181 269.4);

Tailwind

colors: {
  custom: {
    50: '#6d59b0',
    500: '#171a8e',
    950: '#000000',
  },
}

SCSS

$custom: #171a8e;
$custom-light: #6d59b0;
$custom-dark: #000000;

JSON

{
  "hex": "#171a8e",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 142
  },
  "hsl": {
    "h": 238.487,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.32414,
    "c": 0.18124,
    "h": 269.4
  },
  "luminance": 0.02874
}

Semantic roles & 50–950 ramp

primary

#171A8E

secondary

#C0BD40

accent

#EA39EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #171A8E

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

Preview Lab → · Contrast checker → · Palette generator →