#171A64#171A64

#171A64 is a dark, vivid blue. Relative luminance 0.018; OKLCH L 27.5% C 0.127 H 272.7°. Best body text is #FFFFFF at 15.35:1 contrast (WCAG AA passes).

Color values

HEX	#171A64
RGB	rgb(23, 26, 100)
HSL	hsl(238, 63%, 24%)
HSV	hsv(238, 77%, 39%)
CMYK	cmyk(77%, 74%, 0%, 60.8%)
CIE-LAB	lab(14.63, 26.39, -43.74)
CIE-LCH	lch(14.63, 51.09, 301.10°)
OKLab	oklab(27.5% 0.0059 -0.1265)
OKLCH	oklch(27.5% 0.127 272.7)
XYZ	xyz(3.0222, 1.8407, 12.2501)
Luminance	0.0184 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A64 #646117

analogous

#174164 #171A64 #3B1764

triadic

#171A64 #64171A #1A6417

tetradic

#171A64 #641741 #646117 #17643B

square

#171A64 #641741 #646117 #17643B

split-complementary

#171A64 #643B17 #416417

monochromatic

#060619 #0C0D32 #171A64 #222796 #2E34C8

Accessibility & contrast

On white

15.35

#171A64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.37

#171A64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A64

15.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A64	#FFFFFF	#000000	##FFFFFF
##171A64	1.00	15.35	1.37	15.35
#FFFFFF	15.35	1.00	21.00	1.00
#000000	1.37	21.00	1.00	21.00
##FFFFFF	15.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002966

Deuteranopia (green-blind)

#002163

Tritanopia (blue-blind)

#002E3C

Achromatopsia (no color)

#252525

Design tokens & code

CSS

--color: #171a64;
/* rgb */ color: rgb(23, 26, 100);
/* oklch */ color: oklch(27.5% 0.127 272.7);

Tailwind

colors: {
  custom: {
    50: '#625791',
    500: '#171a64',
    950: '#000000',
  },
}

SCSS

$custom: #171a64;
$custom-light: #625791;
$custom-dark: #000000;

JSON

{
  "hex": "#171a64",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 100
  },
  "hsl": {
    "h": 237.662,
    "s": 62.602,
    "l": 24.118
  },
  "oklch": {
    "l": 0.27499,
    "c": 0.12666,
    "h": 272.7
  },
  "luminance": 0.01841
}

Semantic roles & 50–950 ramp

primary

#171A64

secondary

#9A973C

accent

#DF42E6

background

#F6F5F9

surface

#EBE9F1

border

#C6C5CB

text

#06030D

muted

#7A787E

Preview Lab

Preview with #171A64

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

Preview Lab → · Contrast checker → · Palette generator →