#17338E#17338E

#17338E is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.154 H 265.7°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#17338E
RGB	rgb(23, 51, 142)
HSL	hsl(226, 72%, 32%)
HSV	hsv(226, 84%, 56%)
CMYK	cmyk(83.8%, 64.1%, 0%, 44.3%)
CIE-LAB	lab(25.27, 25.73, -53.12)
CIE-LCH	lch(25.27, 59.02, 295.85°)
OKLab	oklab(36.55% -0.0116 -0.1537)
OKLCH	oklch(36.55% 0.154 265.7)
XYZ	xyz(6.4179, 4.5020, 26.1167)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17338E #8E7217

analogous

#176F8E #17338E #36178E

triadic

#17338E #8E1733 #338E17

tetradic

#17338E #8E176F #8E7217 #178E36

square

#17338E #8E176F #8E7217 #178E36

split-complementary

#17338E #8E3617 #6F8E17

monochromatic

#060D25 #0E2059 #17338E #2046C3 #3F65E0

Accessibility & contrast

On white

11.05

#17338E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#17338E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17338E

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17338E	#FFFFFF	#000000	##FFFFFF
##17338E	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004291

Deuteranopia (green-blind)

#00368C

Tritanopia (blue-blind)

#004B5B

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #17338e;
/* rgb */ color: rgb(23, 51, 142);
/* oklch */ color: oklch(36.6% 0.154 265.7);

Tailwind

colors: {
  custom: {
    50: '#6b6ab0',
    500: '#17338e',
    950: '#000000',
  },
}

SCSS

$custom: #17338e;
$custom-light: #6b6ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#17338e",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 142
  },
  "hsl": {
    "h": 225.882,
    "s": 72.121,
    "l": 32.353
  },
  "oklch": {
    "l": 0.36553,
    "c": 0.15419,
    "h": 265.7
  },
  "luminance": 0.04503
}

Semantic roles & 50–950 ramp

primary

#17338E

secondary

#C0A240

accent

#C439EF

background

#F7F6FA

surface

#EDEBF5

border

#C8C6CF

text

#080611

muted

#7B7A80

Preview Lab

Preview with #17338E

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

Preview Lab → · Contrast checker → · Palette generator →