#18478B#18478B

#18478B is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.7% C 0.124 H 258.3°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#18478B
RGB	rgb(24, 71, 139)
HSL	hsl(215, 71%, 32%)
HSV	hsv(215, 83%, 55%)
CMYK	cmyk(82.7%, 48.9%, 0%, 45.5%)
CIE-LAB	lab(30.79, 10.73, -42.29)
CIE-LCH	lch(30.79, 43.63, 284.24°)
OKLab	oklab(40.67% -0.0252 -0.1215)
OKLCH	oklch(40.67% 0.124 258.3)
XYZ	xyz(7.2884, 6.5639, 25.3039)
Luminance	0.0657 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18478B #8B5C18

analogous

#18818B #18478B #22188B

triadic

#18478B #8B1847 #478B18

tetradic

#18478B #8B1881 #8B5C18 #188B22

square

#18478B #8B1881 #8B5C18 #188B22

split-complementary

#18478B #8B2218 #818B18

monochromatic

#061223 #0F2C57 #18478B #2162BF #3F80DE

Accessibility & contrast

On white

9.08

#18478B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#18478B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18478B

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18478B	#FFFFFF	#000000	##FFFFFF
##18478B	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#204E8E

Deuteranopia (green-blind)

#00448A

Tritanopia (blue-blind)

#005762

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #18478b;
/* rgb */ color: rgb(24, 71, 139);
/* oklch */ color: oklch(40.7% 0.124 258.3);

Tailwind

colors: {
  custom: {
    50: '#6979ad',
    500: '#18478b',
    950: '#000000',
  },
}

SCSS

$custom: #18478b;
$custom-light: #6979ad;
$custom-dark: #000000;

JSON

{
  "hex": "#18478b",
  "rgb": {
    "r": 24,
    "g": 71,
    "b": 139
  },
  "hsl": {
    "h": 215.478,
    "s": 70.552,
    "l": 31.961
  },
  "oklch": {
    "l": 0.40666,
    "c": 0.12412,
    "h": 258.3
  },
  "luminance": 0.06565
}

Semantic roles & 50–950 ramp

primary

#18478B

secondary

#BE8B40

accent

#A43AED

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #18478B

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

Preview Lab → · Contrast checker → · Palette generator →