#171A80#171A80

#171A80 is a dark, vivid blue. Relative luminance 0.025; OKLCH L 30.7% C 0.164 H 270.3°. Best body text is #FFFFFF at 14.04:1 contrast (WCAG AA passes).

Color values

HEX	#171A80
RGB	rgb(23, 26, 128)
HSL	hsl(238, 70%, 30%)
HSV	hsv(238, 82%, 50%)
CMYK	cmyk(82%, 79.7%, 0%, 49.8%)
CIE-LAB	lab(17.82, 36.66, -56.60)
CIE-LCH	lch(17.82, 67.43, 302.93°)
OKLab	oklab(30.72% 0.001 -0.1639)
OKLCH	oklch(30.72% 0.164 270.3)
XYZ	xyz(4.6177, 2.4789, 20.6530)
Luminance	0.0248 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A80 #807D17

analogous

#174E80 #171A80 #491780

triadic

#171A80 #80171A #1A8017

tetradic

#171A80 #80174E #807D17 #178049

square

#171A80 #80174E #807D17 #178049

split-complementary

#171A80 #804917 #4E8017

monochromatic

#05051A #0E0F4C #171A80 #2025B4 #363BDB

Accessibility & contrast

On white

14.04

#171A80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.50

#171A80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A80

14.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A80	#FFFFFF	#000000	##FFFFFF
##171A80	1.00	14.04	1.50	14.04
#FFFFFF	14.04	1.00	21.00	1.00
#000000	1.50	21.00	1.00	21.00
##FFFFFF	14.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003183

Deuteranopia (green-blind)

#00267E

Tritanopia (blue-blind)

#00394C

Achromatopsia (no color)

#2C2C2C

Design tokens & code

CSS

--color: #171a80;
/* rgb */ color: rgb(23, 26, 128);
/* oklch */ color: oklch(30.7% 0.164 270.3);

Tailwind

colors: {
  custom: {
    50: '#6a58a6',
    500: '#171a80',
    950: '#000000',
  },
}

SCSS

$custom: #171a80;
$custom-light: #6a58a6;
$custom-dark: #000000;

JSON

{
  "hex": "#171a80",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 128
  },
  "hsl": {
    "h": 238.286,
    "s": 69.536,
    "l": 29.608
  },
  "oklch": {
    "l": 0.30722,
    "c": 0.16391,
    "h": 270.3
  },
  "luminance": 0.02479
}

Semantic roles & 50–950 ramp

primary

#171A80

secondary

#B4B13E

accent

#E73BEC

background

#F6F5FA

surface

#ECE9F4

border

#C7C5CE

text

#08030F

muted

#7A787F

Preview Lab

Preview with #171A80

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

Preview Lab → · Contrast checker → · Palette generator →