#17305E#17305E

#17305E is a dark, moderate blue. Relative luminance 0.031; OKLCH L 31.7% C 0.088 H 261.4°. Best body text is #FFFFFF at 12.96:1 contrast (WCAG AA passes).

Color values

HEX	#17305E
RGB	rgb(23, 48, 94)
HSL	hsl(219, 61%, 23%)
HSV	hsv(219, 76%, 37%)
CMYK	cmyk(75.5%, 48.9%, 0%, 63.1%)
CIE-LAB	lab(20.46, 8.10, -30.31)
CIE-LCH	lch(20.46, 31.37, 284.95°)
OKLab	oklab(31.69% -0.0131 -0.0868)
OKLCH	oklch(31.69% 0.088 261.4)
XYZ	xyz(3.4300, 3.1039, 11.0058)
Luminance	0.0310 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17305E #5E4517

analogous

#17535E #17305E #21175E

triadic

#17305E #5E1730 #305E17

tetradic

#17305E #5E1753 #5E4517 #175E21

square

#17305E #5E1753 #5E4517 #175E21

split-complementary

#17305E #5E2117 #535E17

monochromatic

#060D19 #0B172D #17305E #23498F #2F62C0

Accessibility & contrast

On white

12.96

#17305E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.62

#17305E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17305E

12.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17305E	#FFFFFF	#000000	##FFFFFF
##17305E	1.00	12.96	1.62	12.96
#FFFFFF	12.96	1.00	21.00	1.00
#000000	1.62	21.00	1.00	21.00
##FFFFFF	12.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193560

Deuteranopia (green-blind)

#0A2E5D

Tritanopia (blue-blind)

#003B42

Achromatopsia (no color)

#313131

Design tokens & code

CSS

--color: #17305e;
/* rgb */ color: rgb(23, 48, 94);
/* oklch */ color: oklch(31.7% 0.088 261.4);

Tailwind

colors: {
  custom: {
    50: '#5e678c',
    500: '#17305e',
    950: '#000000',
  },
}

SCSS

$custom: #17305e;
$custom-light: #5e678c;
$custom-dark: #000000;

JSON

{
  "hex": "#17305e",
  "rgb": {
    "r": 23,
    "g": 48,
    "b": 94
  },
  "hsl": {
    "h": 218.873,
    "s": 60.684,
    "l": 22.941
  },
  "oklch": {
    "l": 0.31689,
    "c": 0.08779,
    "h": 261.4
  },
  "luminance": 0.03104
}

Semantic roles & 50–950 ramp

primary

#17305E

secondary

#95763C

accent

#AC44E4

background

#F5F6F8

surface

#EAEBF0

border

#C6C6CB

text

#05060C

muted

#797A7D

Preview Lab

Preview with #17305E

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

Preview Lab → · Contrast checker → · Palette generator →