#171971#171971

#171971 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.146 H 271.7°. Best body text is #FFFFFF at 14.85:1 contrast (WCAG AA passes).

Color values

HEX	#171971
RGB	rgb(23, 25, 113)
HSL	hsl(239, 66%, 27%)
HSV	hsv(239, 80%, 44%)
CMYK	cmyk(79.6%, 77.9%, 0%, 55.7%)
CIE-LAB	lab(15.85, 31.89, -50.25)
CIE-LCH	lch(15.85, 59.51, 302.40°)
OKLab	oklab(28.8% 0.0043 -0.1455)
OKLCH	oklch(28.8% 0.146 271.7)
XYZ	xyz(3.6806, 2.0693, 15.8250)
Luminance	0.0207 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171971 #716F17

analogous

#174671 #171971 #421771

triadic

#171971 #711719 #197117

tetradic

#171971 #711746 #716F17 #177142

square

#171971 #711746 #716F17 #177142

split-complementary

#171971 #714217 #467117

monochromatic

#050619 #0D0E3E #171971 #2124A4 #2E32D4

Accessibility & contrast

On white

14.85

#171971 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171971 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171971

14.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171971	#FFFFFF	#000000	##FFFFFF
##171971	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)

#002C74

Deuteranopia (green-blind)

#00236F

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171971;
/* rgb */ color: rgb(23, 25, 113);
/* oklch */ color: oklch(28.8% 0.146 271.7);

Tailwind

colors: {
  custom: {
    50: '#65579b',
    500: '#171971',
    950: '#000000',
  },
}

SCSS

$custom: #171971;
$custom-light: #65579b;
$custom-dark: #000000;

JSON

{
  "hex": "#171971",
  "rgb": {
    "r": 23,
    "g": 25,
    "b": 113
  },
  "hsl": {
    "h": 238.667,
    "s": 66.176,
    "l": 26.667
  },
  "oklch": {
    "l": 0.28804,
    "c": 0.14552,
    "h": 271.7
  },
  "luminance": 0.0207
}

Semantic roles & 50–950 ramp

primary

#171971

secondary

#A7A43D

accent

#E53FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171971

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

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