#170F66#170F66

#170F66 is a dark, vivid blue. Relative luminance 0.015; OKLCH L 26.1% C 0.141 H 274.5°. Best body text is #FFFFFF at 16.20:1 contrast (WCAG AA passes).

Color values

HEX	#170F66
RGB	rgb(23, 15, 102)
HSL	hsl(246, 74%, 23%)
HSV	hsv(246, 85%, 40%)
CMYK	cmyk(77.5%, 85.3%, 0%, 60%)
CIE-LAB	lab(12.50, 33.79, -48.58)
CIE-LCH	lch(12.50, 59.18, 304.82°)
OKLab	oklab(26.06% 0.0111 -0.1405)
OKLCH	oklch(26.06% 0.141 274.5)
XYZ	xyz(2.9217, 1.4828, 12.7000)
Luminance	0.0148 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170F66 #5E660F

analogous

#0F3266 #170F66 #420F66

triadic

#170F66 #66170F #0F6617

tetradic

#170F66 #660F32 #5E660F #0F6642

square

#170F66 #660F32 #5E660F #0F6642

split-complementary

#170F66 #66420F #32660F

monochromatic

#06041B #0B0731 #170F66 #23179B #2F1FD1

Accessibility & contrast

On white

16.20

#170F66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.30

#170F66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170F66

16.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170F66	#FFFFFF	#000000	##FFFFFF
##170F66	1.00	16.20	1.30	16.20
#FFFFFF	16.20	1.00	21.00	1.00
#000000	1.30	21.00	1.00	21.00
##FFFFFF	16.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#002468

Deuteranopia (green-blind)

#001C65

Tritanopia (blue-blind)

#002A3B

Achromatopsia (no color)

#212121

Design tokens & code

CSS

--color: #170f66;
/* rgb */ color: rgb(23, 15, 102);
/* oklch */ color: oklch(26.1% 0.141 274.5);

Tailwind

colors: {
  custom: {
    50: '#635093',
    500: '#170f66',
    950: '#000000',
  },
}

SCSS

$custom: #170f66;
$custom-light: #635093;
$custom-dark: #000000;

JSON

{
  "hex": "#170f66",
  "rgb": {
    "r": 23,
    "g": 15,
    "b": 102
  },
  "hsl": {
    "h": 245.517,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.26061,
    "c": 0.14094,
    "h": 274.5
  },
  "luminance": 0.01483
}

Semantic roles & 50–950 ramp

primary

#170F66

secondary

#959F32

accent

#F137E0

background

#F6F4F9

surface

#EBE7F1

border

#C6C3CB

text

#06020D

muted

#7A787E

Preview Lab

Preview with #170F66

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

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