#18478E#18478E

#18478E is a dark, vivid blue. Relative luminance 0.067; OKLCH L 40.9% C 0.128 H 258.9°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#18478E
RGB	rgb(24, 71, 142)
HSL	hsl(216, 71%, 33%)
HSV	hsv(216, 83%, 56%)
CMYK	cmyk(83.1%, 50%, 0%, 44.3%)
CIE-LAB	lab(31.00, 11.96, -43.79)
CIE-LCH	lch(31.00, 45.39, 285.28°)
OKLab	oklab(40.89% -0.0247 -0.126)
OKLCH	oklch(40.89% 0.128 258.9)
XYZ	xyz(7.5106, 6.6527, 26.4742)
Luminance	0.0665 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18478E #8E5F18

analogous

#18828E #18478E #24188E

triadic

#18478E #8E1847 #478E18

tetradic

#18478E #8E1882 #8E5F18 #188E24

square

#18478E #8E1882 #8E5F18 #188E24

split-complementary

#18478E #8E2418 #828E18

monochromatic

#061325 #0F2D5A #18478E #2161C2 #4180DF

Accessibility & contrast

On white

9.01

#18478E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#18478E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18478E

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18478E	#FFFFFF	#000000	##FFFFFF
##18478E	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D4F91

Deuteranopia (green-blind)

#00448D

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #18478e;
/* rgb */ color: rgb(24, 71, 142);
/* oklch */ color: oklch(40.9% 0.128 258.9);

Tailwind

colors: {
  custom: {
    50: '#6a79b0',
    500: '#18478e',
    950: '#000000',
  },
}

SCSS

$custom: #18478e;
$custom-light: #6a79b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18478e",
  "rgb": {
    "r": 24,
    "g": 71,
    "b": 142
  },
  "hsl": {
    "h": 216.102,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.40895,
    "c": 0.12836,
    "h": 258.9
  },
  "luminance": 0.06654
}

Semantic roles & 50–950 ramp

primary

#18478E

secondary

#C08E42

accent

#A63AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #18478E

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

Preview Lab → · Contrast checker → · Palette generator →