#171E75#171E75

#171E75 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.1% C 0.145 H 270.5°. Best body text is #FFFFFF at 14.20:1 contrast (WCAG AA passes).

Color values

HEX	#171E75
RGB	rgb(23, 30, 117)
HSL	hsl(236, 67%, 27%)
HSV	hsv(236, 80%, 46%)
CMYK	cmyk(80.3%, 74.4%, 0%, 54.1%)
CIE-LAB	lab(17.44, 30.20, -50.21)
CIE-LCH	lch(17.44, 58.59, 301.02°)
OKLab	oklab(30.07% 0.0012 -0.1454)
OKLCH	oklch(30.07% 0.145 270.5)
XYZ	xyz(4.0274, 2.3946, 17.0761)
Luminance	0.0239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E75 #756E17

analogous

#174D75 #171E75 #3F1775

triadic

#171E75 #75171E #1E7517

tetradic

#171E75 #75174D #756E17 #17753F

square

#171E75 #75174D #756E17 #17753F

split-complementary

#171E75 #753F17 #4D7517

monochromatic

#05071A #0D1142 #171E75 #212BA8 #303CD6

Accessibility & contrast

On white

14.20

#171E75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.48

#171E75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E75

14.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E75	#FFFFFF	#000000	##FFFFFF
##171E75	1.00	14.20	1.48	14.20
#FFFFFF	14.20	1.00	21.00	1.00
#000000	1.48	21.00	1.00	21.00
##FFFFFF	14.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F78

Deuteranopia (green-blind)

#002673

Tritanopia (blue-blind)

#003747

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171e75;
/* rgb */ color: rgb(23, 30, 117);
/* oklch */ color: oklch(30.1% 0.145 270.5);

Tailwind

colors: {
  custom: {
    50: '#665a9e',
    500: '#171e75',
    950: '#000000',
  },
}

SCSS

$custom: #171e75;
$custom-light: #665a9e;
$custom-dark: #000000;

JSON

{
  "hex": "#171e75",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 117
  },
  "hsl": {
    "h": 235.532,
    "s": 67.143,
    "l": 27.451
  },
  "oklch": {
    "l": 0.30073,
    "c": 0.14539,
    "h": 270.5
  },
  "luminance": 0.02395
}

Semantic roles & 50–950 ramp

primary

#171E75

secondary

#AAA23D

accent

#DD3EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040E

muted

#7A797E

Preview Lab

Preview with #171E75

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

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