#17388A#17388A

#17388A is a dark, vivid blue. Relative luminance 0.048; OKLCH L 37.2% C 0.142 H 264.0°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#17388A
RGB	rgb(23, 56, 138)
HSL	hsl(223, 71%, 32%)
HSV	hsv(223, 83%, 54%)
CMYK	cmyk(83.3%, 59.4%, 0%, 45.9%)
CIE-LAB	lab(26.29, 20.65, -48.97)
CIE-LCH	lch(26.29, 53.14, 292.86°)
OKLab	oklab(37.21% -0.0148 -0.1415)
OKLCH	oklch(37.21% 0.142 264)
XYZ	xyz(6.3533, 4.8447, 24.6401)
Luminance	0.0485 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17388A #8A6917

analogous

#17728A #17388A #30178A

triadic

#17388A #8A1738 #388A17

tetradic

#17388A #8A1772 #8A6917 #178A30

square

#17388A #8A1772 #8A6917 #178A30

split-complementary

#17388A #8A3017 #728A17

monochromatic

#060D21 #0E2356 #17388A #204DBE #3D6BDF

Accessibility & contrast

On white

10.67

#17388A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#17388A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17388A

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17388A	#FFFFFF	#000000	##FFFFFF
##17388A	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00448D

Deuteranopia (green-blind)

#003988

Tritanopia (blue-blind)

#004D5B

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #17388a;
/* rgb */ color: rgb(23, 56, 138);
/* oklch */ color: oklch(37.2% 0.142 264.0);

Tailwind

colors: {
  custom: {
    50: '#696ead',
    500: '#17388a',
    950: '#000000',
  },
}

SCSS

$custom: #17388a;
$custom-light: #696ead;
$custom-dark: #000000;

JSON

{
  "hex": "#17388a",
  "rgb": {
    "r": 23,
    "g": 56,
    "b": 138
  },
  "hsl": {
    "h": 222.783,
    "s": 71.429,
    "l": 31.569
  },
  "oklch": {
    "l": 0.37206,
    "c": 0.14228,
    "h": 264
  },
  "luminance": 0.04845
}

Semantic roles & 50–950 ramp

primary

#17388A

secondary

#BE993F

accent

#BA3AEE

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #17388A

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

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