#170F63#170F63

#170F63 is a dark, vivid blue. Relative luminance 0.014; OKLCH L 25.7% C 0.137 H 275.0°. Best body text is #FFFFFF at 16.34:1 contrast (WCAG AA passes).

Color values

HEX	#170F63
RGB	rgb(23, 15, 99)
HSL	hsl(246, 74%, 22%)
HSV	hsv(246, 85%, 39%)
CMYK	cmyk(76.8%, 84.8%, 0%, 61.2%)
CIE-LAB	lab(12.12, 32.77, -47.22)
CIE-LCH	lch(12.12, 57.48, 304.76°)
OKLab	oklab(25.69% 0.012 -0.1365)
OKLCH	oklch(25.69% 0.137 275)
XYZ	xyz(2.7756, 1.4244, 11.9306)
Luminance	0.0143 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F63 #5B630F

analogous

#0F3163 #170F63 #410F63

triadic

#170F63 #63170F #0F6317

tetradic

#170F63 #630F31 #5B630F #0F6341

square

#170F63 #630F31 #5B630F #0F6341

split-complementary

#170F63 #63410F #31630F

monochromatic

#06041B #0B072E #170F63 #231798 #301FCD

Accessibility & contrast

On white

16.34

#170F63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.29

#170F63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F63

16.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F63	#FFFFFF	#000000	##FFFFFF
##170F63	1.00	16.34	1.29	16.34
#FFFFFF	16.34	1.00	21.00	1.00
#000000	1.29	21.00	1.00	21.00
##FFFFFF	16.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002365

Deuteranopia (green-blind)

#001C62

Tritanopia (blue-blind)

#002939

Achromatopsia (no color)

#202020

Design tokens & code

CSS

--color: #170f63;
/* rgb */ color: rgb(23, 15, 99);
/* oklch */ color: oklch(25.7% 0.137 275.0);

Tailwind

colors: {
  custom: {
    50: '#635090',
    500: '#170f63',
    950: '#000000',
  },
}

SCSS

$custom: #170f63;
$custom-light: #635090;
$custom-dark: #000000;

JSON

{
  "hex": "#170f63",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 99
  },
  "hsl": {
    "h": 245.714,
    "s": 73.684,
    "l": 22.353
  },
  "oklch": {
    "l": 0.25687,
    "c": 0.13708,
    "h": 275
  },
  "luminance": 0.01425
}

Semantic roles & 50–950 ramp

primary

#170F63

secondary

#929C32

accent

#F037DF

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #170F63

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

Preview Lab → · Contrast checker → · Palette generator →