#171E66#171E66

#171E66 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.4% C 0.125 H 271.4°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#171E66
RGB	rgb(23, 30, 102)
HSL	hsl(235, 63%, 25%)
HSV	hsv(235, 77%, 40%)
CMYK	cmyk(77.5%, 70.6%, 0%, 60%)
CIE-LAB	lab(15.85, 24.42, -43.06)
CIE-LCH	lch(15.85, 49.50, 299.56°)
OKLab	oklab(28.45% 0.003 -0.1245)
OKLCH	oklch(28.45% 0.125 271.4)
XYZ	xyz(3.2151, 2.0697, 12.7978)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E66 #665F17

analogous

#174566 #171E66 #381766

triadic

#171E66 #66171E #1E6617

tetradic

#171E66 #661745 #665F17 #176638

square

#171E66 #661745 #665F17 #176638

split-complementary

#171E66 #663817 #456617

monochromatic

#060719 #0C0F34 #171E66 #222D98 #2E3BCA

Accessibility & contrast

On white

14.85

#171E66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171E66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E66

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E66	#FFFFFF	#000000	##FFFFFF
##171E66	1.00	14.85	1.41	14.85
#FFFFFF	14.85	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B68

Deuteranopia (green-blind)

#002465

Tritanopia (blue-blind)

#00313F

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171e66;
/* rgb */ color: rgb(23, 30, 102);
/* oklch */ color: oklch(28.4% 0.125 271.4);

Tailwind

colors: {
  custom: {
    50: '#625a92',
    500: '#171e66',
    950: '#000000',
  },
}

SCSS

$custom: #171e66;
$custom-light: #625a92;
$custom-dark: #000000;

JSON

{
  "hex": "#171e66",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 102
  },
  "hsl": {
    "h": 234.684,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.28447,
    "c": 0.12455,
    "h": 271.4
  },
  "luminance": 0.0207
}

Semantic roles & 50–950 ramp

primary

#171E66

secondary

#9C943C

accent

#D842E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171E66

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

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