#170E53#170E53

#170E53 is a very dark, moderate blue. Relative luminance 0.011; OKLCH L 23.6% C 0.117 H 278.4°. Best body text is #FFFFFF at 17.15:1 contrast (WCAG AA passes).

Color values

HEX	#170E53
RGB	rgb(23, 14, 83)
HSL	hsl(248, 71%, 19%)
HSV	hsv(248, 83%, 33%)
CMYK	cmyk(72.3%, 83.1%, 0%, 67.5%)
CIE-LAB	lab(9.96, 27.77, -40.01)
CIE-LCH	lch(9.96, 48.70, 304.76°)
OKLab	oklab(23.6% 0.0171 -0.1156)
OKLCH	oklch(23.6% 0.117 278.4)
XYZ	xyz(2.0712, 1.1206, 8.2891)
Luminance	0.0112 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E53 #4A530E

analogous

#0E2853 #170E53 #3A0E53

triadic

#170E53 #53170E #0E5317

tetradic

#170E53 #530E28 #4A530E #0E533A

square

#170E53 #530E28 #4A530E #0E533A

split-complementary

#170E53 #533A0E #28530E

monochromatic

#07041A #08051F #170E53 #261787 #3420BC

Accessibility & contrast

On white

17.15

#170E53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.22

#170E53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E53

17.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E53	#FFFFFF	#000000	##FFFFFF
##170E53	1.00	17.15	1.22	17.15
#FFFFFF	17.15	1.00	21.00	1.00
#000000	1.22	21.00	1.00	21.00
##FFFFFF	17.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#001E55

Deuteranopia (green-blind)

#001952

Tritanopia (blue-blind)

#002230

Achromatopsia (no color)

#1B1B1B

Design tokens & code

CSS

--color: #170e53;
/* rgb */ color: rgb(23, 14, 83);
/* oklch */ color: oklch(23.6% 0.117 278.4);

Tailwind

colors: {
  custom: {
    50: '#5e4e84',
    500: '#170e53',
    950: '#000000',
  },
}

SCSS

$custom: #170e53;
$custom-light: #5e4e84;
$custom-dark: #000000;

JSON

{
  "hex": "#170e53",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 83
  },
  "hsl": {
    "h": 247.826,
    "s": 71.134,
    "l": 19.02
  },
  "oklch": {
    "l": 0.23599,
    "c": 0.11682,
    "h": 278.4
  },
  "luminance": 0.01121
}

Semantic roles & 50–950 ramp

primary

#170E53

secondary

#818D2F

accent

#EE3AD6

background

#F5F4F8

surface

#EAE7EF

border

#C6C3CA

text

#05010B

muted

#79777C

Preview Lab

Preview with #170E53

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

Preview Lab → · Contrast checker → · Palette generator →