#171A74#171A74

#171A74 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.3% C 0.148 H 271.3°. Best body text is #FFFFFF at 14.62:1 contrast (WCAG AA passes).

Color values

HEX	#171A74
RGB	rgb(23, 26, 116)
HSL	hsl(238, 67%, 27%)
HSV	hsv(238, 80%, 45%)
CMYK	cmyk(80.2%, 77.6%, 0%, 54.5%)
CIE-LAB	lab(16.41, 32.37, -51.25)
CIE-LCH	lch(16.41, 60.62, 302.27°)
OKLab	oklab(29.31% 0.0033 -0.1484)
OKLCH	oklch(29.31% 0.148 271.3)
XYZ	xyz(3.8741, 2.1815, 16.7365)
Luminance	0.0218 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A74 #747117

analogous

#174874 #171A74 #431774

triadic

#171A74 #74171A #1A7417

tetradic

#171A74 #741748 #747117 #177443

square

#171A74 #741748 #747117 #177443

split-complementary

#171A74 #744317 #487417

monochromatic

#05061A #0D0F41 #171A74 #2125A7 #3035D6

Accessibility & contrast

On white

14.62

#171A74 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.44

#171A74 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A74

14.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A74	#FFFFFF	#000000	##FFFFFF
##171A74	1.00	14.62	1.44	14.62
#FFFFFF	14.62	1.00	21.00	1.00
#000000	1.44	21.00	1.00	21.00
##FFFFFF	14.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D77

Deuteranopia (green-blind)

#002472

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#292929

Design tokens & code

CSS

--color: #171a74;
/* rgb */ color: rgb(23, 26, 116);
/* oklch */ color: oklch(29.3% 0.148 271.3);

Tailwind

colors: {
  custom: {
    50: '#66589d',
    500: '#171a74',
    950: '#000000',
  },
}

SCSS

$custom: #171a74;
$custom-light: #66589d;
$custom-dark: #000000;

JSON

{
  "hex": "#171a74",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 116
  },
  "hsl": {
    "h": 238.065,
    "s": 66.906,
    "l": 27.255
  },
  "oklch": {
    "l": 0.29309,
    "c": 0.14843,
    "h": 271.3
  },
  "luminance": 0.02182
}

Semantic roles & 50–950 ramp

primary

#171A74

secondary

#A9A63D

accent

#E43EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171A74

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

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