#171870#171870

#171870 is a dark, vivid blue. Relative luminance 0.020; OKLCH L 28.5% C 0.145 H 271.9°. Best body text is #FFFFFF at 14.99:1 contrast (WCAG AA passes).

Color values

HEX	#171870
RGB	rgb(23, 24, 112)
HSL	hsl(239, 66%, 26%)
HSV	hsv(239, 79%, 44%)
CMYK	cmyk(79.5%, 78.6%, 0%, 56.1%)
CIE-LAB	lab(15.51, 32.14, -50.15)
CIE-LCH	lch(15.51, 59.56, 302.66°)
OKLab	oklab(28.53% 0.0049 -0.1452)
OKLCH	oklch(28.53% 0.145 271.9)
XYZ	xyz(3.6036, 2.0049, 15.5232)
Luminance	0.0200 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171870 #706F17

analogous

#174570 #171870 #431770

triadic

#171870 #701718 #187017

tetradic

#171870 #701745 #706F17 #177043

square

#171870 #701745 #706F17 #177043

split-complementary

#171870 #704317 #457017

monochromatic

#050519 #0D0D3D #171870 #2123A3 #2D2FD4

Accessibility & contrast

On white

14.99

#171870 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.40

#171870 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171870

14.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171870	#FFFFFF	#000000	##FFFFFF
##171870	1.00	14.99	1.40	14.99
#FFFFFF	14.99	1.00	21.00	1.00
#000000	1.40	21.00	1.00	21.00
##FFFFFF	14.99	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002B73

Deuteranopia (green-blind)

#00226E

Tritanopia (blue-blind)

#003243

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171870;
/* rgb */ color: rgb(23, 24, 112);
/* oklch */ color: oklch(28.5% 0.145 271.9);

Tailwind

colors: {
  custom: {
    50: '#65569a',
    500: '#171870',
    950: '#000000',
  },
}

SCSS

$custom: #171870;
$custom-light: #65569a;
$custom-dark: #000000;

JSON

{
  "hex": "#171870",
  "rgb": {
    "r": 23,
    "g": 24,
    "b": 112
  },
  "hsl": {
    "h": 239.326,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.28533,
    "c": 0.14525,
    "h": 271.9
  },
  "luminance": 0.02005
}

Semantic roles & 50–950 ramp

primary

#171870

secondary

#A6A53D

accent

#E73FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171870

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

Preview Lab → · Contrast checker → · Palette generator →