#18478D#18478D

#18478D is a dark, vivid blue. Relative luminance 0.066; OKLCH L 40.8% C 0.127 H 258.7°. Best body text is #FFFFFF at 9.03:1 contrast (WCAG AA passes).

Color values

HEX	#18478D
RGB	rgb(24, 71, 141)
HSL	hsl(216, 71%, 32%)
HSV	hsv(216, 83%, 55%)
CMYK	cmyk(83%, 49.6%, 0%, 44.7%)
CIE-LAB	lab(30.93, 11.55, -43.29)
CIE-LCH	lch(30.93, 44.80, 284.94°)
OKLab	oklab(40.82% -0.0248 -0.1245)
OKLCH	oklch(40.82% 0.127 258.7)
XYZ	xyz(7.4359, 6.6229, 26.0806)
Luminance	0.0662 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18478D #8D5E18

analogous

#18828D #18478D #23188D

triadic

#18478D #8D1847 #478D18

tetradic

#18478D #8D1882 #8D5E18 #188D23

square

#18478D #8D1882 #8D5E18 #188D23

split-complementary

#18478D #8D2318 #828D18

monochromatic

#061224 #0F2D59 #18478D #2161C1 #4180DF

Accessibility & contrast

On white

9.03

#18478D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#18478D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18478D

9.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18478D	#FFFFFF	#000000	##FFFFFF
##18478D	1.00	9.03	2.32	9.03
#FFFFFF	9.03	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E4E90

Deuteranopia (green-blind)

#00448C

Tritanopia (blue-blind)

#005863

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #18478d;
/* rgb */ color: rgb(24, 71, 141);
/* oklch */ color: oklch(40.8% 0.127 258.7);

Tailwind

colors: {
  custom: {
    50: '#6a79af',
    500: '#18478d',
    950: '#000000',
  },
}

SCSS

$custom: #18478d;
$custom-light: #6a79af;
$custom-dark: #000000;

JSON

{
  "hex": "#18478d",
  "rgb": {
    "r": 24,
    "g": 71,
    "b": 141
  },
  "hsl": {
    "h": 215.897,
    "s": 70.909,
    "l": 32.353
  },
  "oklch": {
    "l": 0.40819,
    "c": 0.12694,
    "h": 258.7
  },
  "luminance": 0.06624
}

Semantic roles & 50–950 ramp

primary

#18478D

secondary

#BF8D42

accent

#A63AEE

background

#F6F7FA

surface

#ECEDF4

border

#C7C8CE

text

#070910

muted

#7A7B7F

Preview Lab

Preview with #18478D

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

Preview Lab → · Contrast checker → · Palette generator →