#171570#171570

#171570 is a dark, vivid blue. Relative luminance 0.019; OKLCH L 28.1% C 0.148 H 272.4°. Best body text is #FFFFFF at 15.24:1 contrast (WCAG AA passes).

Color values

HEX	#171570
RGB	rgb(23, 21, 112)
HSL	hsl(241, 68%, 26%)
HSV	hsv(241, 81%, 44%)
CMYK	cmyk(79.5%, 81.2%, 0%, 56.1%)
CIE-LAB	lab(14.89, 33.92, -51.18)
CIE-LCH	lch(14.89, 61.40, 303.53°)
OKLab	oklab(28.09% 0.0062 -0.1481)
OKLCH	oklch(28.09% 0.148 272.4)
XYZ	xyz(3.5452, 1.8880, 15.5037)
Luminance	0.0189 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171570 #6E7015

analogous

#154070 #171570 #441570

triadic

#171570 #701715 #157017

tetradic

#171570 #701540 #6E7015 #157044

square

#171570 #701540 #6E7015 #157044

split-complementary

#171570 #704415 #407015

monochromatic

#05051A #0C0B3C #171570 #221FA4 #2C29D7

Accessibility & contrast

On white

15.24

#171570 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.38

#171570 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171570

15.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171570	#FFFFFF	#000000	##FFFFFF
##171570	1.00	15.24	1.38	15.24
#FFFFFF	15.24	1.00	21.00	1.00
#000000	1.38	21.00	1.00	21.00
##FFFFFF	15.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A73

Deuteranopia (green-blind)

#00216E

Tritanopia (blue-blind)

#003142

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171570;
/* rgb */ color: rgb(23, 21, 112);
/* oklch */ color: oklch(28.1% 0.148 272.4);

Tailwind

colors: {
  custom: {
    50: '#66549a',
    500: '#171570',
    950: '#000000',
  },
}

SCSS

$custom: #171570;
$custom-light: #66549a;
$custom-dark: #000000;

JSON

{
  "hex": "#171570",
  "rgb": {
    "r": 23,
    "g": 21,
    "b": 112
  },
  "hsl": {
    "h": 241.319,
    "s": 68.421,
    "l": 26.078
  },
  "oklch": {
    "l": 0.28093,
    "c": 0.14826,
    "h": 272.4
  },
  "luminance": 0.01888
}

Semantic roles & 50–950 ramp

primary

#171570

secondary

#A4A63B

accent

#EB3DE7

background

#F6F4F9

surface

#EBE8F2

border

#C6C4CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171570

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

Preview Lab → · Contrast checker → · Palette generator →