#171E7E#171E7E

#171E7E is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.1% C 0.157 H 270.0°. Best body text is #FFFFFF at 13.78:1 contrast (WCAG AA passes).

Color values

HEX	#171E7E
RGB	rgb(23, 30, 126)
HSL	hsl(236, 69%, 29%)
HSV	hsv(236, 82%, 49%)
CMYK	cmyk(81.7%, 76.2%, 0%, 50.6%)
CIE-LAB	lab(18.44, 33.54, -54.31)
CIE-LCH	lch(18.44, 63.83, 301.70°)
OKLab	oklab(31.09% -0.0001 -0.1573)
OKLCH	oklch(31.09% 0.157 270)
XYZ	xyz(4.5822, 2.6165, 19.9982)
Luminance	0.0262 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E7E #7E7717

analogous

#17527E #171E7E #44177E

triadic

#171E7E #7E171E #1E7E17

tetradic

#171E7E #7E1752 #7E7717 #177E44

square

#171E7E #7E1752 #7E7717 #177E44

split-complementary

#171E7E #7E4417 #527E17

monochromatic

#05061A #0E124A #171E7E #202AB2 #3540DA

Accessibility & contrast

On white

13.78

#171E7E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#171E7E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E7E

13.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E7E	#FFFFFF	#000000	##FFFFFF
##171E7E	1.00	13.78	1.52	13.78
#FFFFFF	13.78	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003281

Deuteranopia (green-blind)

#00287C

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #171e7e;
/* rgb */ color: rgb(23, 30, 126);
/* oklch */ color: oklch(31.1% 0.157 270.0);

Tailwind

colors: {
  custom: {
    50: '#695ba4',
    500: '#171e7e',
    950: '#000000',
  },
}

SCSS

$custom: #171e7e;
$custom-light: #695ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#171e7e",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 126
  },
  "hsl": {
    "h": 235.922,
    "s": 69.128,
    "l": 29.216
  },
  "oklch": {
    "l": 0.31089,
    "c": 0.15731,
    "h": 270
  },
  "luminance": 0.02617
}

Semantic roles & 50–950 ramp

primary

#171E7E

secondary

#B3AB3E

accent

#E03CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #171E7E

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

Preview Lab → · Contrast checker → · Palette generator →