#171A70#171A70

#171A70 is a dark, vivid blue. Relative luminance 0.021; OKLCH L 28.8% C 0.143 H 271.6°. Best body text is #FFFFFF at 14.81:1 contrast (WCAG AA passes).

Color values

HEX	#171A70
RGB	rgb(23, 26, 112)
HSL	hsl(238, 66%, 26%)
HSV	hsv(238, 79%, 44%)
CMYK	cmyk(79.5%, 76.8%, 0%, 56.1%)
CIE-LAB	lab(15.95, 30.90, -49.42)
CIE-LCH	lch(15.95, 58.28, 302.02°)
OKLab	oklab(28.85% 0.004 -0.1431)
OKLCH	oklch(28.85% 0.143 271.6)
XYZ	xyz(3.6464, 2.0904, 15.5374)
Luminance	0.0209 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#171A70 #706D17

analogous

#174770 #171A70 #411770

triadic

#171A70 #70171A #1A7017

tetradic

#171A70 #701747 #706D17 #177041

square

#171A70 #701747 #706D17 #177041

split-complementary

#171A70 #704117 #477017

monochromatic

#050619 #0D0E3D #171A70 #2126A3 #2D33D4

Accessibility & contrast

On white

14.81

#171A70 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.42

#171A70 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #171A70

14.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##171A70	#FFFFFF	#000000	##FFFFFF
##171A70	1.00	14.81	1.42	14.81
#FFFFFF	14.81	1.00	21.00	1.00
#000000	1.42	21.00	1.00	21.00
##FFFFFF	14.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002C73

Deuteranopia (green-blind)

#00236E

Tritanopia (blue-blind)

#003343

Achromatopsia (no color)

#282828

Design tokens & code

CSS

--color: #171a70;
/* rgb */ color: rgb(23, 26, 112);
/* oklch */ color: oklch(28.8% 0.143 271.6);

Tailwind

colors: {
  custom: {
    50: '#65579a',
    500: '#171a70',
    950: '#000000',
  },
}

SCSS

$custom: #171a70;
$custom-light: #65579a;
$custom-dark: #000000;

JSON

{
  "hex": "#171a70",
  "rgb": {
    "r": 23,
    "g": 26,
    "b": 112
  },
  "hsl": {
    "h": 237.978,
    "s": 65.926,
    "l": 26.471
  },
  "oklch": {
    "l": 0.28847,
    "c": 0.14311,
    "h": 271.6
  },
  "luminance": 0.02091
}

Semantic roles & 50–950 ramp

primary

#171A70

secondary

#A6A23D

accent

#E33FE9

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#07030E

muted

#7A787E

Preview Lab

Preview with #171A70

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

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