#171A8D#171A8D

#171A8D is a dark, vivid blue. Relative luminance 0.028; OKLCH L 32.3% C 0.180 H 269.5°. Best body text is #FFFFFF at 13.39:1 contrast (WCAG AA passes).

Color values

HEX	#171A8D
RGB	rgb(23, 26, 141)
HSL	hsl(238, 72%, 32%)
HSV	hsv(238, 84%, 55%)
CMYK	cmyk(83.7%, 81.6%, 0%, 44.7%)
CIE-LAB	lab(19.41, 41.12, -62.16)
CIE-LCH	lch(19.41, 74.53, 303.49°)
OKLab	oklab(32.29% -0.0015 -0.18)
OKLCH	oklch(32.29% 0.18 269.5)
XYZ	xyz(5.5288, 2.8434, 25.4516)
Luminance	0.0284 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A8D #8D8A17

analogous

#17558D #171A8D #4F178D

triadic

#171A8D #8D171A #1A8D17

tetradic

#171A8D #8D1755 #8D8A17 #178D4F

square

#171A8D #8D1755 #8D8A17 #178D4F

split-complementary

#171A8D #8D4F17 #558D17

monochromatic

#060724 #0E1058 #171A8D #2024C2 #3F43E0

Accessibility & contrast

On white

13.39

#171A8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#171A8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A8D

13.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A8D	#FFFFFF	#000000	##FFFFFF
##171A8D	1.00	13.39	1.57	13.39
#FFFFFF	13.39	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003590

Deuteranopia (green-blind)

#00298B

Tritanopia (blue-blind)

#003E54

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #171a8d;
/* rgb */ color: rgb(23, 26, 141);
/* oklch */ color: oklch(32.3% 0.180 269.5);

Tailwind

colors: {
  custom: {
    50: '#6d59b0',
    500: '#171a8d',
    950: '#000000',
  },
}

SCSS

$custom: #171a8d;
$custom-light: #6d59b0;
$custom-dark: #000000;

JSON

{
  "hex": "#171a8d",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 141
  },
  "hsl": {
    "h": 238.475,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32292,
    "c": 0.18003,
    "h": 269.5
  },
  "luminance": 0.02844
}

Semantic roles & 50–950 ramp

primary

#171A8D

secondary

#C0BD40

accent

#EA39EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#090411

muted

#7B7980

Preview Lab

Preview with #171A8D

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

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