#170E58#170E58

#170E58 is a very dark, vivid blue. Relative luminance 0.012; OKLCH L 24.2% C 0.124 H 277.3°. Best body text is #FFFFFF at 16.93:1 contrast (WCAG AA passes).

Color values

HEX	#170E58
RGB	rgb(23, 14, 88)
HSL	hsl(247, 73%, 20%)
HSV	hsv(247, 84%, 35%)
CMYK	cmyk(73.9%, 84.1%, 0%, 65.5%)
CIE-LAB	lab(10.56, 29.53, -42.42)
CIE-LCH	lch(10.56, 51.68, 304.84°)
OKLab	oklab(24.2% 0.0157 -0.1226)
OKLCH	oklch(24.2% 0.124 277.3)
XYZ	xyz(2.2713, 1.2006, 9.3427)
Luminance	0.0120 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#170E58 #4F580E

analogous

#0E2A58 #170E58 #3C0E58

triadic

#170E58 #58170E #0E5817

tetradic

#170E58 #580E2A #4F580E #0E583C

square

#170E58 #580E2A #4F580E #0E583C

split-complementary

#170E58 #583C0E #2A580E

monochromatic

#07041A #090623 #170E58 #25168D #331FC2

Accessibility & contrast

On white

16.93

#170E58 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.24

#170E58 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #170E58

16.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##170E58	#FFFFFF	#000000	##FFFFFF
##170E58	1.00	16.93	1.24	16.93
#FFFFFF	16.93	1.00	21.00	1.00
#000000	1.24	21.00	1.00	21.00
##FFFFFF	16.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00205A

Deuteranopia (green-blind)

#001957

Tritanopia (blue-blind)

#002433

Achromatopsia (no color)

#1D1D1D

Design tokens & code

CSS

--color: #170e58;
/* rgb */ color: rgb(23, 14, 88);
/* oklch */ color: oklch(24.2% 0.124 277.3);

Tailwind

colors: {
  custom: {
    50: '#604e88',
    500: '#170e58',
    950: '#000000',
  },
}

SCSS

$custom: #170e58;
$custom-light: #604e88;
$custom-dark: #000000;

JSON

{
  "hex": "#170e58",
  "rgb": {
    "r": 23,
    "g": 14,
    "b": 88
  },
  "hsl": {
    "h": 247.297,
    "s": 72.549,
    "l": 20
  },
  "oklch": {
    "l": 0.24201,
    "c": 0.12357,
    "h": 277.3
  },
  "luminance": 0.01201
}

Semantic roles & 50–950 ramp

primary

#170E58

secondary

#869230

accent

#EF39D9

background

#F6F4F8

surface

#EBE7F0

border

#C6C3CB

text

#05020B

muted

#7A787C

Preview Lab

Preview with #170E58

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

Preview Lab → · Contrast checker → · Palette generator →