#17458D#17458D

#17458D is a dark, vivid blue. Relative luminance 0.064; OKLCH L 40.3% C 0.130 H 259.4°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#17458D
RGB	rgb(23, 69, 141)
HSL	hsl(217, 72%, 32%)
HSV	hsv(217, 84%, 55%)
CMYK	cmyk(83.7%, 51.1%, 0%, 44.7%)
CIE-LAB	lab(30.30, 12.82, -44.30)
CIE-LCH	lch(30.30, 46.12, 286.14°)
OKLab	oklab(40.33% -0.0238 -0.1275)
OKLCH	oklch(40.33% 0.13 259.4)
XYZ	xyz(7.2874, 6.3606, 26.0378)
Luminance	0.0636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#17458D #8D5F17

analogous

#17808D #17458D #24178D

triadic

#17458D #8D1745 #458D17

tetradic

#17458D #8D1780 #8D5F17 #178D24

square

#17458D #8D1780 #8D5F17 #178D24

split-complementary

#17458D #8D2417 #808D17

monochromatic

#061224 #0E2B58 #17458D #205FC2 #3F7DE0

Accessibility & contrast

On white

9.24

#17458D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#17458D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #17458D

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##17458D	#FFFFFF	#000000	##FFFFFF
##17458D	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#184D90

Deuteranopia (green-blind)

#00428C

Tritanopia (blue-blind)

#005662

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #17458d;
/* rgb */ color: rgb(23, 69, 141);
/* oklch */ color: oklch(40.3% 0.130 259.4);

Tailwind

colors: {
  custom: {
    50: '#6978af',
    500: '#17458d',
    950: '#000000',
  },
}

SCSS

$custom: #17458d;
$custom-light: #6978af;
$custom-dark: #000000;

JSON

{
  "hex": "#17458d",
  "rgb": {
    "r": 23,
    "g": 69,
    "b": 141
  },
  "hsl": {
    "h": 216.61,
    "s": 71.951,
    "l": 32.157
  },
  "oklch": {
    "l": 0.40329,
    "c": 0.12975,
    "h": 259.4
  },
  "luminance": 0.06361
}

Semantic roles & 50–950 ramp

primary

#17458D

secondary

#C08E40

accent

#A839EF

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #17458D

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

Preview Lab → · Contrast checker → · Palette generator →