#18488F#18488F

#18488F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 41.2% C 0.129 H 258.6°. Best body text is #FFFFFF at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#18488F
RGB	rgb(24, 72, 143)
HSL	hsl(216, 71%, 33%)
HSV	hsv(216, 83%, 56%)
CMYK	cmyk(83.2%, 49.7%, 0%, 43.9%)
CIE-LAB	lab(31.37, 11.69, -43.81)
CIE-LCH	lch(31.37, 45.34, 284.94°)
OKLab	oklab(41.2% -0.0253 -0.126)
OKLCH	oklch(41.2% 0.129 258.6)
XYZ	xyz(7.6502, 6.8112, 26.8928)
Luminance	0.0681 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18488F #8F5F18

analogous

#18838F #18488F #23188F

triadic

#18488F #8F1848 #488F18

tetradic

#18488F #8F1883 #8F5F18 #188F23

square

#18488F #8F1883 #8F5F18 #188F23

split-complementary

#18488F #8F2318 #838F18

monochromatic

#061326 #0F2E5B #18488F #2162C3 #4282DF

Accessibility & contrast

On white

8.89

#18488F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.36

#18488F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18488F

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18488F	#FFFFFF	#000000	##FFFFFF
##18488F	1.00	8.89	2.36	8.89
#FFFFFF	8.89	1.00	21.00	1.00
#000000	2.36	21.00	1.00	21.00
##FFFFFF	8.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E5092

Deuteranopia (green-blind)

#00458E

Tritanopia (blue-blind)

#005964

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #18488f;
/* rgb */ color: rgb(24, 72, 143);
/* oklch */ color: oklch(41.2% 0.129 258.6);

Tailwind

colors: {
  custom: {
    50: '#6a7ab0',
    500: '#18488f',
    950: '#000000',
  },
}

SCSS

$custom: #18488f;
$custom-light: #6a7ab0;
$custom-dark: #000000;

JSON

{
  "hex": "#18488f",
  "rgb": {
    "r": 24,
    "g": 72,
    "b": 143
  },
  "hsl": {
    "h": 215.798,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.41202,
    "c": 0.12851,
    "h": 258.6
  },
  "luminance": 0.06812
}

Semantic roles & 50–950 ramp

primary

#18488F

secondary

#C08E43

accent

#A53AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080910

muted

#7A7B7F

Preview Lab

Preview with #18488F

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

Preview Lab → · Contrast checker → · Palette generator →