#171E61#171E61

#171E61 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 27.9% C 0.117 H 271.7°. Best body text is #FFFFFF at 15.06:1 contrast (WCAG AA passes).

Color values

HEX	#171E61
RGB	rgb(23, 30, 97)
HSL	hsl(234, 62%, 24%)
HSV	hsv(234, 76%, 38%)
CMYK	cmyk(76.3%, 69.1%, 0%, 62%)
CIE-LAB	lab(15.35, 22.45, -40.58)
CIE-LCH	lch(15.35, 46.37, 298.95°)
OKLab	oklab(27.93% 0.0034 -0.1172)
OKLCH	oklch(27.93% 0.117 271.7)
XYZ	xyz(2.9746, 1.9735, 11.5311)
Luminance	0.0197 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171E61 #615A17

analogous

#174361 #171E61 #351761

triadic

#171E61 #61171E #1E6117

tetradic

#171E61 #611743 #615A17 #176135

square

#171E61 #611743 #615A17 #176135

split-complementary

#171E61 #613517 #436117

monochromatic

#060819 #0B0F30 #171E61 #232D92 #2E3DC4

Accessibility & contrast

On white

15.06

#171E61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.39

#171E61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171E61

15.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171E61	#FFFFFF	#000000	##FFFFFF
##171E61	1.00	15.06	1.39	15.06
#FFFFFF	15.06	1.00	21.00	1.00
#000000	1.39	21.00	1.00	21.00
##FFFFFF	15.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A63

Deuteranopia (green-blind)

#002360

Tritanopia (blue-blind)

#00303C

Achromatopsia (no color)

#262626

Design tokens & code

CSS

--color: #171e61;
/* rgb */ color: rgb(23, 30, 97);
/* oklch */ color: oklch(27.9% 0.117 271.7);

Tailwind

colors: {
  custom: {
    50: '#60598f',
    500: '#171e61',
    950: '#000000',
  },
}

SCSS

$custom: #171e61;
$custom-light: #60598f;
$custom-dark: #000000;

JSON

{
  "hex": "#171e61",
  "rgb": {
    "r": 23,
    "g": 30,
    "b": 97
  },
  "hsl": {
    "h": 234.324,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.27927,
    "c": 0.11729,
    "h": 271.7
  },
  "luminance": 0.01974
}

Semantic roles & 50–950 ramp

primary

#171E61

secondary

#988F3C

accent

#D543E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05030C

muted

#7A787D

Preview Lab

Preview with #171E61

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

Preview Lab → · Contrast checker → · Palette generator →