#171F61#171F61

#171F61 is a dark, moderate blue. Relative luminance 0.020; OKLCH L 28.1% C 0.116 H 271.3°. Best body text is #FFFFFF at 14.95:1 contrast (WCAG AA passes).

Color values

HEX	#171F61
RGB	rgb(23, 31, 97)
HSL	hsl(234, 62%, 24%)
HSV	hsv(234, 76%, 38%)
CMYK	cmyk(76.3%, 68%, 0%, 62%)
CIE-LAB	lab(15.62, 21.74, -40.13)
CIE-LCH	lch(15.62, 45.64, 298.44°)
OKLab	oklab(28.13% 0.0027 -0.1159)
OKLCH	oklch(28.13% 0.116 271.3)
XYZ	xyz(3.0003, 2.0249, 11.5397)
Luminance	0.0203 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171F61 #615917

analogous

#174461 #171F61 #341761

triadic

#171F61 #61171F #1F6117

tetradic

#171F61 #611744 #615917 #176134

square

#171F61 #611744 #615917 #176134

split-complementary

#171F61 #613417 #446117

monochromatic

#060819 #0B0F30 #171F61 #232F92 #2E3FC4

Accessibility & contrast

On white

14.95

#171F61 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.41

#171F61 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171F61

14.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171F61	#FFFFFF	#000000	##FFFFFF
##171F61	1.00	14.95	1.41	14.95
#FFFFFF	14.95	1.00	21.00	1.00
#000000	1.41	21.00	1.00	21.00
##FFFFFF	14.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002A63

Deuteranopia (green-blind)

#002460

Tritanopia (blue-blind)

#00303C

Achromatopsia (no color)

#272727

Design tokens & code

CSS

--color: #171f61;
/* rgb */ color: rgb(23, 31, 97);
/* oklch */ color: oklch(28.1% 0.116 271.3);

Tailwind

colors: {
  custom: {
    50: '#605a8f',
    500: '#171f61',
    950: '#000000',
  },
}

SCSS

$custom: #171f61;
$custom-light: #605a8f;
$custom-dark: #000000;

JSON

{
  "hex": "#171f61",
  "rgb": {
    "r": 23,
    "g": 31,
    "b": 97
  },
  "hsl": {
    "h": 233.514,
    "s": 61.667,
    "l": 23.529
  },
  "oklch": {
    "l": 0.28125,
    "c": 0.11597,
    "h": 271.3
  },
  "luminance": 0.02025
}

Semantic roles & 50–950 ramp

primary

#171F61

secondary

#988E3C

accent

#D343E5

background

#F6F5F8

surface

#EBE9F0

border

#C6C5CB

text

#05040C

muted

#7A797D

Preview Lab

Preview with #171F61

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

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