#171E8D#171E8D

#171E8D is a dark, vivid blue. Relative luminance 0.030; OKLCH L 32.8% C 0.176 H 269.2°. Best body text is #FFFFFF at 13.07:1 contrast (WCAG AA passes).

Color values

HEX	#171E8D
RGB	rgb(23, 30, 141)
HSL	hsl(236, 72%, 32%)
HSV	hsv(236, 84%, 55%)
CMYK	cmyk(83.7%, 78.7%, 0%, 44.7%)
CIE-LAB	lab(20.18, 38.90, -60.88)
CIE-LCH	lch(20.18, 72.25, 302.58°)
OKLab	oklab(32.83% -0.0026 -0.1764)
OKLCH	oklch(32.83% 0.176 269.2)
XYZ	xyz(5.6237, 3.0331, 25.4832)
Luminance	0.0303 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E8D #8D8617

analogous

#17598D #171E8D #4B178D

triadic

#171E8D #8D171E #1E8D17

tetradic

#171E8D #8D1759 #8D8617 #178D4B

square

#171E8D #8D1759 #8D8617 #178D4B

split-complementary

#171E8D #8D4B17 #598D17

monochromatic

#060824 #0E1358 #171E8D #2029C2 #3F48E0

Accessibility & contrast

On white

13.07

#171E8D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.61

#171E8D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E8D

13.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E8D	#FFFFFF	#000000	##FFFFFF
##171E8D	1.00	13.07	1.61	13.07
#FFFFFF	13.07	1.00	21.00	1.00
#000000	1.61	21.00	1.00	21.00
##FFFFFF	13.07	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003790

Deuteranopia (green-blind)

#002B8B

Tritanopia (blue-blind)

#004055

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #171e8d;
/* rgb */ color: rgb(23, 30, 141);
/* oklch */ color: oklch(32.8% 0.176 269.2);

Tailwind

colors: {
  custom: {
    50: '#6d5bb0',
    500: '#171e8d',
    950: '#000000',
  },
}

SCSS

$custom: #171e8d;
$custom-light: #6d5bb0;
$custom-dark: #000000;

JSON

{
  "hex": "#171e8d",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 141
  },
  "hsl": {
    "h": 236.441,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.32833,
    "c": 0.1764,
    "h": 269.2
  },
  "luminance": 0.03034
}

Semantic roles & 50–950 ramp

primary

#171E8D

secondary

#C0B840

accent

#E439EF

background

#F7F5FB

surface

#EDE9F6

border

#C8C5D0

text

#080411

muted

#7B7980

Preview Lab

Preview with #171E8D

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

Preview Lab → · Contrast checker → · Palette generator →