#170E4A#170E4A

#170E4A is a very dark, moderate blue. Relative luminance 0.010; OKLCH L 22.5% C 0.104 H 280.8°. Best body text is #FFFFFF at 17.53:1 contrast (WCAG AA passes).

Color values

HEX	#170E4A
RGB	rgb(23, 14, 74)
HSL	hsl(249, 68%, 17%)
HSV	hsv(249, 81%, 29%)
CMYK	cmyk(68.9%, 81.1%, 0%, 71%)
CIE-LAB	lab(8.91, 24.55, -35.52)
CIE-LCH	lch(8.91, 43.18, 304.65°)
OKLab	oklab(22.55% 0.0196 -0.1024)
OKLCH	oklch(22.55% 0.104 280.8)
XYZ	xyz(1.7460, 0.9905, 6.5764)
Luminance	0.0099 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Midnight Blue (survey)

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E4A #414A0E

analogous

#0E234A #170E4A #350E4A

triadic

#170E4A #4A170E #0E4A17

tetradic

#170E4A #4A0E23 #414A0E #0E4A35

square

#170E4A #4A0E23 #414A0E #0E4A35

split-complementary

#170E4A #4A350E #234A0E

monochromatic

#08051A #08051A #170E4A #27187D #3721B1

Accessibility & contrast

On white

17.53

#170E4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.20

#170E4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E4A

17.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E4A	#FFFFFF	#000000	##FFFFFF
##170E4A	1.00	17.53	1.20	17.53
#FFFFFF	17.53	1.00	21.00	1.00
#000000	1.20	21.00	1.00	21.00
##FFFFFF	17.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001B4C

Deuteranopia (green-blind)

#001749

Tritanopia (blue-blind)

#001F2B

Achromatopsia (no color)

#191919

Design tokens & code

CSS

--color: #170e4a;
/* rgb */ color: rgb(23, 14, 74);
/* oklch */ color: oklch(22.5% 0.104 280.8);

Tailwind

colors: {
  custom: {
    50: '#5c4d7d',
    500: '#170e4a',
    950: '#000000',
  },
}

SCSS

$custom: #170e4a;
$custom-light: #5c4d7d;
$custom-dark: #000000;

JSON

{
  "hex": "#170e4a",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 74
  },
  "hsl": {
    "h": 249,
    "s": 68.182,
    "l": 17.255
  },
  "oklch": {
    "l": 0.22547,
    "c": 0.1043,
    "h": 280.8
  },
  "luminance": 0.00991
}

Semantic roles & 50–950 ramp

primary

#170E4A

secondary

#78852F

accent

#EB3DD1

background

#F5F4F7

surface

#E9E7EE

border

#C5C3C9

text

#04010A

muted

#79777C

Preview Lab

Preview with #170E4A

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

Preview Lab → · Contrast checker → · Palette generator →