#17338F#17338F

#17338F is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.6% C 0.156 H 265.7°. Best body text is #FFFFFF at 11.01:1 contrast (WCAG AA passes).

Color values

HEX	#17338F
RGB	rgb(23, 51, 143)
HSL	hsl(226, 72%, 33%)
HSV	hsv(226, 84%, 56%)
CMYK	cmyk(83.9%, 64.3%, 0%, 43.9%)
CIE-LAB	lab(25.36, 26.13, -53.58)
CIE-LCH	lch(25.36, 59.62, 296.00°)
OKLab	oklab(36.65% -0.0116 -0.1551)
OKLCH	oklch(36.65% 0.156 265.7)
XYZ	xyz(6.4934, 4.5322, 26.5138)
Luminance	0.0453 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17338F #8F7317

analogous

#176F8F #17338F #37178F

triadic

#17338F #8F1733 #338F17

tetradic

#17338F #8F176F #8F7317 #178F37

square

#17338F #8F176F #8F7317 #178F37

split-complementary

#17338F #8F3717 #6F8F17

monochromatic

#060D26 #0F205A #17338F #1F46C4 #4065E0

Accessibility & contrast

On white

11.01

#17338F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.91

#17338F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17338F

11.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17338F	#FFFFFF	#000000	##FFFFFF
##17338F	1.00	11.01	1.91	11.01
#FFFFFF	11.01	1.00	21.00	1.00
#000000	1.91	21.00	1.00	21.00
##FFFFFF	11.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004292

Deuteranopia (green-blind)

#00378D

Tritanopia (blue-blind)

#004B5C

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #17338f;
/* rgb */ color: rgb(23, 51, 143);
/* oklch */ color: oklch(36.6% 0.156 265.7);

Tailwind

colors: {
  custom: {
    50: '#6b6ab1',
    500: '#17338f',
    950: '#000000',
  },
}

SCSS

$custom: #17338f;
$custom-light: #6b6ab1;
$custom-dark: #000000;

JSON

{
  "hex": "#17338f",
  "rgb": {
    "r": 23,
    "g": 51,
    "b": 143
  },
  "hsl": {
    "h": 226,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.36649,
    "c": 0.15556,
    "h": 265.7
  },
  "luminance": 0.04533
}

Semantic roles & 50–950 ramp

primary

#17338F

secondary

#C1A341

accent

#C439EF

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080611

muted

#7B7A80

Preview Lab

Preview with #17338F

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

Preview Lab → · Contrast checker → · Palette generator →