#18489B#18489B

#18489B is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.1% C 0.145 H 260.6°. Best body text is #FFFFFF at 8.61:1 contrast (WCAG AA passes).

Color values

HEX	#18489B
RGB	rgb(24, 72, 155)
HSL	hsl(218, 73%, 35%)
HSV	hsv(218, 85%, 61%)
CMYK	cmyk(84.5%, 53.5%, 0%, 39.2%)
CIE-LAB	lab(32.25, 16.59, -49.71)
CIE-LCH	lch(32.25, 52.40, 288.45°)
OKLab	oklab(42.15% -0.0236 -0.1433)
OKLCH	oklch(42.15% 0.145 260.6)
XYZ	xyz(8.6083, 7.1944, 31.9389)
Luminance	0.0720 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18489B #9B6B18

analogous

#188A9B #18489B #29189B

triadic

#18489B #9B1848 #489B18

tetradic

#18489B #9B188A #9B6B18 #189B29

square

#18489B #9B188A #9B6B18 #189B29

split-complementary

#18489B #9B2918 #8A9B18

monochromatic

#081731 #102F66 #18489B #2061D0 #4A82E3

Accessibility & contrast

On white

8.61

#18489B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#18489B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18489B

8.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18489B	#FFFFFF	#000000	##FFFFFF
##18489B	1.00	8.61	2.44	8.61
#FFFFFF	8.61	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#08529E

Deuteranopia (green-blind)

#004699

Tritanopia (blue-blind)

#005C6A

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #18489b;
/* rgb */ color: rgb(24, 72, 155);
/* oklch */ color: oklch(42.1% 0.145 260.6);

Tailwind

colors: {
  custom: {
    50: '#6d7ab9',
    500: '#18489b',
    950: '#000000',
  },
}

SCSS

$custom: #18489b;
$custom-light: #6d7ab9;
$custom-dark: #000000;

JSON

{
  "hex": "#18489b",
  "rgb": {
    "r": 24,
    "g": 72,
    "b": 155
  },
  "hsl": {
    "h": 218.015,
    "s": 73.184,
    "l": 35.098
  },
  "oklch": {
    "l": 0.42147,
    "c": 0.14528,
    "h": 260.6
  },
  "luminance": 0.07195
}

Semantic roles & 50–950 ramp

primary

#18489B

secondary

#C5984A

accent

#AC38F0

background

#F7F7FB

surface

#EDEDF6

border

#C8C8D0

text

#080911

muted

#7B7B80

Preview Lab

Preview with #18489B

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

Preview Lab → · Contrast checker → · Palette generator →