#17458C#17458C

#17458C is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.3% C 0.128 H 259.2°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#17458C
RGB	rgb(23, 69, 140)
HSL	hsl(216, 72%, 32%)
HSV	hsv(216, 84%, 55%)
CMYK	cmyk(83.6%, 50.7%, 0%, 45.1%)
CIE-LAB	lab(30.23, 12.41, -43.81)
CIE-LCH	lch(30.23, 45.53, 285.82°)
OKLab	oklab(40.25% -0.024 -0.1261)
OKLCH	oklch(40.25% 0.128 259.2)
XYZ	xyz(7.2134, 6.3310, 25.6477)
Luminance	0.0633 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17458C #8C5E17

analogous

#17808C #17458C #23178C

triadic

#17458C #8C1745 #458C17

tetradic

#17458C #8C1780 #8C5E17 #178C23

square

#17458C #8C1780 #8C5E17 #178C23

split-complementary

#17458C #8C2317 #808C17

monochromatic

#061123 #0E2B57 #17458C #205FC1 #3E7DDF

Accessibility & contrast

On white

9.27

#17458C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#17458C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17458C

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17458C	#FFFFFF	#000000	##FFFFFF
##17458C	1.00	9.27	2.27	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1A4D8F

Deuteranopia (green-blind)

#00428B

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #17458c;
/* rgb */ color: rgb(23, 69, 140);
/* oklch */ color: oklch(40.3% 0.128 259.2);

Tailwind

colors: {
  custom: {
    50: '#6978ae',
    500: '#17458c',
    950: '#000000',
  },
}

SCSS

$custom: #17458c;
$custom-light: #6978ae;
$custom-dark: #000000;

JSON

{
  "hex": "#17458c",
  "rgb": {
    "r": 23,
    "g": 69,
    "b": 140
  },
  "hsl": {
    "h": 216.41,
    "s": 71.779,
    "l": 31.961
  },
  "oklch": {
    "l": 0.4025,
    "c": 0.12833,
    "h": 259.2
  },
  "luminance": 0.06332
}

Semantic roles & 50–950 ramp

primary

#17458C

secondary

#BF8D3F

accent

#A739EF

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #17458C

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

Preview Lab → · Contrast checker → · Palette generator →