#171C76#171C76

#171C76 is a dark, vivid blue. Relative luminance 0.023; OKLCH L 29.9% C 0.149 H 270.8°. Best body text is #FFFFFF at 14.34:1 contrast (WCAG AA passes).

Color values

HEX	#171C76
RGB	rgb(23, 28, 118)
HSL	hsl(237, 67%, 28%)
HSV	hsv(237, 81%, 46%)
CMYK	cmyk(80.5%, 76.3%, 0%, 53.7%)
CIE-LAB	lab(17.09, 31.85, -51.43)
CIE-LCH	lch(17.09, 60.49, 301.77°)
OKLab	oklab(29.86% 0.002 -0.1489)
OKLCH	oklch(29.86% 0.149 270.8)
XYZ	xyz(4.0375, 2.3202, 17.3711)
Luminance	0.0232 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171C76 #767117

analogous

#174C76 #171C76 #411776

triadic

#171C76 #76171C #1C7617

tetradic

#171C76 #76174C #767117 #177641

square

#171C76 #76174C #767117 #177641

split-complementary

#171C76 #764117 #4C7617

monochromatic

#05061A #0D1043 #171C76 #2128A9 #3139D7

Accessibility & contrast

On white

14.34

#171C76 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#171C76 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171C76

14.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171C76	#FFFFFF	#000000	##FFFFFF
##171C76	1.00	14.34	1.46	14.34
#FFFFFF	14.34	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002F79

Deuteranopia (green-blind)

#002574

Tritanopia (blue-blind)

#003647

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #171c76;
/* rgb */ color: rgb(23, 28, 118);
/* oklch */ color: oklch(29.9% 0.149 270.8);

Tailwind

colors: {
  custom: {
    50: '#67599f',
    500: '#171c76',
    950: '#000000',
  },
}

SCSS

$custom: #171c76;
$custom-light: #67599f;
$custom-dark: #000000;

JSON

{
  "hex": "#171c76",
  "rgb": {
    "r": 23,
    "g": 28,
    "b": 118
  },
  "hsl": {
    "h": 236.842,
    "s": 67.376,
    "l": 27.647
  },
  "oklch": {
    "l": 0.29856,
    "c": 0.14893,
    "h": 270.8
  },
  "luminance": 0.02321
}

Semantic roles & 50–950 ramp

primary

#171C76

secondary

#ABA63E

accent

#E13EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030F

muted

#7A787E

Preview Lab

Preview with #171C76

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

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