#18478C#18478C

#18478C is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.7% C 0.126 H 258.5°. Best body text is #FFFFFF at 9.06:1 contrast (WCAG AA passes).

Color values

HEX	#18478C
RGB	rgb(24, 71, 140)
HSL	hsl(216, 71%, 32%)
HSV	hsv(216, 83%, 55%)
CMYK	cmyk(82.9%, 49.3%, 0%, 45.1%)
CIE-LAB	lab(30.86, 11.14, -42.79)
CIE-LCH	lch(30.86, 44.22, 284.59°)
OKLab	oklab(40.74% -0.025 -0.123)
OKLCH	oklch(40.74% 0.126 258.5)
XYZ	xyz(7.3618, 6.5932, 25.6905)
Luminance	0.0659 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18478C #8C5D18

analogous

#18818C #18478C #23188C

triadic

#18478C #8C1847 #478C18

tetradic

#18478C #8C1881 #8C5D18 #188C23

square

#18478C #8C1881 #8C5D18 #188C23

split-complementary

#18478C #8C2318 #818C18

monochromatic

#061224 #0F2D58 #18478C #2161C0 #4080DE

Accessibility & contrast

On white

9.06

#18478C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#18478C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18478C

9.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18478C	#FFFFFF	#000000	##FFFFFF
##18478C	1.00	9.06	2.32	9.06
#FFFFFF	9.06	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F4E8F

Deuteranopia (green-blind)

#00448B

Tritanopia (blue-blind)

#005862

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #18478c;
/* rgb */ color: rgb(24, 71, 140);
/* oklch */ color: oklch(40.7% 0.126 258.5);

Tailwind

colors: {
  custom: {
    50: '#6979ae',
    500: '#18478c',
    950: '#000000',
  },
}

SCSS

$custom: #18478c;
$custom-light: #6979ae;
$custom-dark: #000000;

JSON

{
  "hex": "#18478c",
  "rgb": {
    "r": 24,
    "g": 71,
    "b": 140
  },
  "hsl": {
    "h": 215.69,
    "s": 70.732,
    "l": 32.157
  },
  "oklch": {
    "l": 0.40742,
    "c": 0.12553,
    "h": 258.5
  },
  "luminance": 0.06594
}

Semantic roles & 50–950 ramp

primary

#18478C

secondary

#BF8C41

accent

#A53AED

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #18478C

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

Preview Lab → · Contrast checker → · Palette generator →