#171A73#171A73

#171A73 is a dark, vivid blue. Relative luminance 0.022; OKLCH L 29.2% C 0.147 H 271.3°. Best body text is #FFFFFF at 14.67:1 contrast (WCAG AA passes).

Color values

HEX	#171A73
RGB	rgb(23, 26, 115)
HSL	hsl(238, 67%, 27%)
HSV	hsv(238, 80%, 45%)
CMYK	cmyk(80%, 77.4%, 0%, 54.9%)
CIE-LAB	lab(16.30, 32.00, -50.80)
CIE-LCH	lch(16.30, 60.04, 302.21°)
OKLab	oklab(29.19% 0.0034 -0.1471)
OKLCH	oklch(29.19% 0.147 271.3)
XYZ	xyz(3.8162, 2.1583, 16.4318)
Luminance	0.0216 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A73 #737017

analogous

#174873 #171A73 #421773

triadic

#171A73 #73171A #1A7317

tetradic

#171A73 #731748 #737017 #177342

square

#171A73 #731748 #737017 #177342

split-complementary

#171A73 #734217 #487317

monochromatic

#05061A #0D0E40 #171A73 #2126A6 #2F34D5

Accessibility & contrast

On white

14.67

#171A73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.43

#171A73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A73

14.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A73	#FFFFFF	#000000	##FFFFFF
##171A73	1.00	14.67	1.43	14.67
#FFFFFF	14.67	1.00	21.00	1.00
#000000	1.43	21.00	1.00	21.00
##FFFFFF	14.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002D76

Deuteranopia (green-blind)

#002471

Tritanopia (blue-blind)

#003445

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171a73;
/* rgb */ color: rgb(23, 26, 115);
/* oklch */ color: oklch(29.2% 0.147 271.3);

Tailwind

colors: {
  custom: {
    50: '#66579c',
    500: '#171a73',
    950: '#000000',
  },
}

SCSS

$custom: #171a73;
$custom-light: #66579c;
$custom-dark: #000000;

JSON

{
  "hex": "#171a73",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 115
  },
  "hsl": {
    "h": 238.043,
    "s": 66.667,
    "l": 27.059
  },
  "oklch": {
    "l": 0.29193,
    "c": 0.14711,
    "h": 271.3
  },
  "luminance": 0.02159
}

Semantic roles & 50–950 ramp

primary

#171A73

secondary

#A9A53D

accent

#E43EEA

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171A73

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

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