#171E77#171E77

#171E77 is a dark, vivid blue. Relative luminance 0.024; OKLCH L 30.3% C 0.148 H 270.4°. Best body text is #FFFFFF at 14.11:1 contrast (WCAG AA passes).

Color values

HEX	#171E77
RGB	rgb(23, 30, 119)
HSL	hsl(236, 68%, 28%)
HSV	hsv(236, 81%, 47%)
CMYK	cmyk(80.7%, 74.8%, 0%, 53.3%)
CIE-LAB	lab(17.66, 30.95, -51.13)
CIE-LCH	lch(17.66, 59.77, 301.18°)
OKLab	oklab(30.3% 0.0009 -0.1481)
OKLCH	oklch(30.3% 0.148 270.4)
XYZ	xyz(4.1463, 2.4422, 17.7020)
Luminance	0.0244 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E77 #777017

analogous

#174E77 #171E77 #401777

triadic

#171E77 #77171E #1E7717

tetradic

#171E77 #77174E #777017 #177740

square

#171E77 #77174E #777017 #177740

split-complementary

#171E77 #774017 #4E7717

monochromatic

#05061A #0D1144 #171E77 #212BAA #313DD7

Accessibility & contrast

On white

14.11

#171E77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.49

#171E77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E77

14.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E77	#FFFFFF	#000000	##FFFFFF
##171E77	1.00	14.11	1.49	14.11
#FFFFFF	14.11	1.00	21.00	1.00
#000000	1.49	21.00	1.00	21.00
##FFFFFF	14.11	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00307A

Deuteranopia (green-blind)

#002775

Tritanopia (blue-blind)

#003748

Achromatopsia (no color)

#2B2B2B

Design tokens & code

CSS

--color: #171e77;
/* rgb */ color: rgb(23, 30, 119);
/* oklch */ color: oklch(30.3% 0.148 270.4);

Tailwind

colors: {
  custom: {
    50: '#675a9f',
    500: '#171e77',
    950: '#000000',
  },
}

SCSS

$custom: #171e77;
$custom-light: #675a9f;
$custom-dark: #000000;

JSON

{
  "hex": "#171e77",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 119
  },
  "hsl": {
    "h": 235.625,
    "s": 67.606,
    "l": 27.843
  },
  "oklch": {
    "l": 0.30296,
    "c": 0.14806,
    "h": 270.4
  },
  "luminance": 0.02443
}

Semantic roles & 50–950 ramp

primary

#171E77

secondary

#ACA43E

accent

#DE3DEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07040F

muted

#7A797E

Preview Lab

Preview with #171E77

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

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