#17438F#17438F

#17438F is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.0% C 0.135 H 260.6°. Best body text is #FFFFFF at 9.39:1 contrast (WCAG AA passes).

Color values

HEX	#17438F
RGB	rgb(23, 67, 143)
HSL	hsl(218, 72%, 33%)
HSV	hsv(218, 84%, 56%)
CMYK	cmyk(83.9%, 53.1%, 0%, 43.9%)
CIE-LAB	lab(29.86, 15.03, -46.25)
CIE-LCH	lch(29.86, 48.63, 288.00°)
OKLab	oklab(40.03% -0.0221 -0.1333)
OKLCH	oklch(40.03% 0.135 260.6)
XYZ	xyz(7.3166, 6.1787, 26.7883)
Luminance	0.0618 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17438F #8F6317

analogous

#177F8F #17438F #27178F

triadic

#17438F #8F1743 #438F17

tetradic

#17438F #8F177F #8F6317 #178F27

square

#17438F #8F177F #8F6317 #178F27

split-complementary

#17438F #8F2717 #7F8F17

monochromatic

#061226 #0F2A5A #17438F #1F5CC4 #407BE0

Accessibility & contrast

On white

9.39

#17438F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#17438F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17438F

9.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17438F	#FFFFFF	#000000	##FFFFFF
##17438F	1.00	9.39	2.24	9.39
#FFFFFF	9.39	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0D4C92

Deuteranopia (green-blind)

#00418E

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #17438f;
/* rgb */ color: rgb(23, 67, 143);
/* oklch */ color: oklch(40.0% 0.135 260.6);

Tailwind

colors: {
  custom: {
    50: '#6a76b0',
    500: '#17438f',
    950: '#000000',
  },
}

SCSS

$custom: #17438f;
$custom-light: #6a76b0;
$custom-dark: #000000;

JSON

{
  "hex": "#17438f",
  "rgb": {
    "r": 23,
    "g": 67,
    "b": 143
  },
  "hsl": {
    "h": 218,
    "s": 72.289,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40035,
    "c": 0.13513,
    "h": 260.6
  },
  "luminance": 0.0618
}

Semantic roles & 50–950 ramp

primary

#17438F

secondary

#C19241

accent

#AC39EF

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080811

muted

#7A7B80

Preview Lab

Preview with #17438F

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

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