#171E7D#171E7D

#171E7D is a dark, vivid blue. Relative luminance 0.026; OKLCH L 31.0% C 0.156 H 270.0°. Best body text is #FFFFFF at 13.83:1 contrast (WCAG AA passes).

Color values

HEX	#171E7D
RGB	rgb(23, 30, 125)
HSL	hsl(236, 69%, 29%)
HSV	hsv(236, 82%, 49%)
CMYK	cmyk(81.6%, 76%, 0%, 51%)
CIE-LAB	lab(18.32, 33.17, -53.86)
CIE-LCH	lch(18.32, 63.26, 301.63°)
OKLab	oklab(30.98% 0 -0.156)
OKLCH	oklch(30.98% 0.156 270)
XYZ	xyz(4.5180, 2.5909, 19.6600)
Luminance	0.0259 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E7D #7D7617

analogous

#17517D #171E7D #43177D

triadic

#171E7D #7D171E #1E7D17

tetradic

#171E7D #7D1751 #7D7617 #177D43

square

#171E7D #7D1751 #7D7617 #177D43

split-complementary

#171E7D #7D4317 #517D17

monochromatic

#05061A #0D1249 #171E7D #212AB1 #3540DA

Accessibility & contrast

On white

13.83

#171E7D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.52

#171E7D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E7D

13.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E7D	#FFFFFF	#000000	##FFFFFF
##171E7D	1.00	13.83	1.52	13.83
#FFFFFF	13.83	1.00	21.00	1.00
#000000	1.52	21.00	1.00	21.00
##FFFFFF	13.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003280

Deuteranopia (green-blind)

#00287B

Tritanopia (blue-blind)

#003A4C

Achromatopsia (no color)

#2D2D2D

Design tokens & code

CSS

--color: #171e7d;
/* rgb */ color: rgb(23, 30, 125);
/* oklch */ color: oklch(31.0% 0.156 270.0);

Tailwind

colors: {
  custom: {
    50: '#685ba4',
    500: '#171e7d',
    950: '#000000',
  },
}

SCSS

$custom: #171e7d;
$custom-light: #685ba4;
$custom-dark: #000000;

JSON

{
  "hex": "#171e7d",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 125
  },
  "hsl": {
    "h": 235.882,
    "s": 68.919,
    "l": 29.02
  },
  "oklch": {
    "l": 0.30975,
    "c": 0.15601,
    "h": 270
  },
  "luminance": 0.02591
}

Semantic roles & 50–950 ramp

primary

#171E7D

secondary

#B2AA3E

accent

#E03CEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#07040F

muted

#7A797F

Preview Lab

Preview with #171E7D

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

Preview Lab → · Contrast checker → · Palette generator →