#18458B#18458B

#18458B is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.2% C 0.127 H 259.3°. Best body text is #FFFFFF at 9.28:1 contrast (WCAG AA passes).

Color values

HEX	#18458B
RGB	rgb(24, 69, 139)
HSL	hsl(217, 71%, 32%)
HSV	hsv(217, 83%, 55%)
CMYK	cmyk(82.7%, 50.4%, 0%, 45.5%)
CIE-LAB	lab(30.19, 12.10, -43.26)
CIE-LCH	lch(30.19, 44.92, 285.63°)
OKLab	oklab(40.2% -0.0236 -0.1244)
OKLCH	oklch(40.2% 0.127 259.3)
XYZ	xyz(7.1633, 6.3137, 25.2622)
Luminance	0.0631 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18458B #8B5E18

analogous

#187F8B #18458B #25188B

triadic

#18458B #8B1845 #458B18

tetradic

#18458B #8B187F #8B5E18 #188B25

square

#18458B #8B187F #8B5E18 #188B25

split-complementary

#18458B #8B2518 #7F8B18

monochromatic

#061123 #0F2B57 #18458B #215FBF #3F7DDE

Accessibility & contrast

On white

9.28

#18458B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#18458B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18458B

9.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18458B	#FFFFFF	#000000	##FFFFFF
##18458B	1.00	9.28	2.26	9.28
#FFFFFF	9.28	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4D8E

Deuteranopia (green-blind)

#00428A

Tritanopia (blue-blind)

#005661

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #18458b;
/* rgb */ color: rgb(24, 69, 139);
/* oklch */ color: oklch(40.2% 0.127 259.3);

Tailwind

colors: {
  custom: {
    50: '#6978ad',
    500: '#18458b',
    950: '#000000',
  },
}

SCSS

$custom: #18458b;
$custom-light: #6978ad;
$custom-dark: #000000;

JSON

{
  "hex": "#18458b",
  "rgb": {
    "r": 24,
    "g": 69,
    "b": 139
  },
  "hsl": {
    "h": 216.522,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40204,
    "c": 0.12665,
    "h": 259.3
  },
  "luminance": 0.06315
}

Semantic roles & 50–950 ramp

primary

#18458B

secondary

#BE8D40

accent

#A73AED

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070810

muted

#7A7B7F

Preview Lab

Preview with #18458B

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

Preview Lab → · Contrast checker → · Palette generator →