#171BA0#171BA0

#171BA0 is a dark, highly saturated blue. Relative luminance 0.035; OKLCH L 34.8% C 0.202 H 268.5°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#171BA0
RGB	rgb(23, 27, 160)
HSL	hsl(238, 75%, 36%)
HSV	hsv(238, 86%, 63%)
CMYK	cmyk(85.6%, 83.1%, 0%, 37.3%)
CIE-LAB	lab(21.96, 46.86, -69.65)
CIE-LCH	lch(21.96, 83.94, 303.93°)
OKLab	oklab(34.75% -0.0054 -0.2017)
OKLCH	oklch(34.75% 0.202 268.5)
XYZ	xyz(7.0883, 3.5032, 33.5535)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171BA0 #A09C17

analogous

#175FA0 #171BA0 #5717A0

triadic

#171BA0 #A0171B #1BA017

tetradic

#171BA0 #A0175F #A09C17 #17A057

square

#171BA0 #A0175F #A09C17 #17A057

split-complementary

#171BA0 #A05717 #5FA017

monochromatic

#080935 #0F126A #171BA0 #1F24D6 #4C51E5

Accessibility & contrast

On white

12.35

#171BA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#171BA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171BA0

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171BA0	#FFFFFF	#000000	##FFFFFF
##171BA0	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003CA4

Deuteranopia (green-blind)

#002D9E

Tritanopia (blue-blind)

#00465F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #171ba0;
/* rgb */ color: rgb(23, 27, 160);
/* oklch */ color: oklch(34.8% 0.202 268.5);

Tailwind

colors: {
  custom: {
    50: '#725bbe',
    500: '#171ba0',
    950: '#000000',
  },
}

SCSS

$custom: #171ba0;
$custom-light: #725bbe;
$custom-dark: #000000;

JSON

{
  "hex": "#171ba0",
  "rgb": {
    "r": 23,
    "g": 27,
    "b": 160
  },
  "hsl": {
    "h": 238.248,
    "s": 74.863,
    "l": 35.882
  },
  "oklch": {
    "l": 0.34751,
    "c": 0.20178,
    "h": 268.5
  },
  "luminance": 0.03504
}

Semantic roles & 50–950 ramp

primary

#171BA0

secondary

#C7C34C

accent

#EC36F1

background

#F7F5FB

surface

#EEE9F7

border

#C9C5D0

text

#0A0412

muted

#7C7981

Preview Lab

Preview with #171BA0

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

Preview Lab → · Contrast checker → · Palette generator →