#171F76#171F76

#171F76 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.4% C 0.146 H 270.2°. Best body text is #FFFFFF at 14.06:1 contrast (WCAG AA passes).

Color values

HEX	#171F76
RGB	rgb(23, 31, 118)
HSL	hsl(235, 67%, 28%)
HSV	hsv(235, 81%, 46%)
CMYK	cmyk(80.5%, 73.7%, 0%, 53.7%)
CIE-LAB	lab(17.78, 29.92, -50.28)
CIE-LCH	lch(17.78, 58.51, 300.76°)
OKLab	oklab(30.35% 0.0006 -0.1456)
OKLCH	oklch(30.35% 0.146 270.2)
XYZ	xyz(4.1122, 2.4697, 17.3960)
Luminance	0.0247 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F76 #766E17

analogous

#174F76 #171F76 #3E1776

triadic

#171F76 #76171F #1F7617

tetradic

#171F76 #76174F #766E17 #17763E

square

#171F76 #76174F #766E17 #17763E

split-complementary

#171F76 #763E17 #4F7617

monochromatic

#05071A #0D1243 #171F76 #212CA9 #313FD7

Accessibility & contrast

On white

14.06

#171F76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#171F76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F76

14.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F76	#FFFFFF	#000000	##FFFFFF
##171F76	1.00	14.06	1.49	14.06
#FFFFFF	14.06	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003079

Deuteranopia (green-blind)

#002774

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #171f76;
/* rgb */ color: rgb(23, 31, 118);
/* oklch */ color: oklch(30.4% 0.146 270.2);

Tailwind

colors: {
  custom: {
    50: '#665b9e',
    500: '#171f76',
    950: '#000000',
  },
}

SCSS

$custom: #171f76;
$custom-light: #665b9e;
$custom-dark: #000000;

JSON

{
  "hex": "#171f76",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 118
  },
  "hsl": {
    "h": 234.947,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.30354,
    "c": 0.14559,
    "h": 270.2
  },
  "luminance": 0.0247
}

Semantic roles & 50–950 ramp

primary

#171F76

secondary

#ABA23E

accent

#DC3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #171F76

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

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