#18408E#18408E

#18408E is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.3% C 0.137 H 261.9°. Best body text is #FFFFFF at 9.71:1 contrast (WCAG AA passes).

Color values

HEX	#18408E
RGB	rgb(24, 64, 142)
HSL	hsl(220, 71%, 33%)
HSV	hsv(220, 83%, 56%)
CMYK	cmyk(83.1%, 54.9%, 0%, 44.3%)
CIE-LAB	lab(28.94, 16.80, -47.13)
CIE-LCH	lch(28.94, 50.04, 289.61°)
OKLab	oklab(39.32% -0.0193 -0.1359)
OKLCH	oklch(39.32% 0.137 261.9)
XYZ	xyz(7.0908, 5.8131, 26.3343)
Luminance	0.0581 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18408E #8E6618

analogous

#187B8E #18408E #2B188E

triadic

#18408E #8E1840 #408E18

tetradic

#18408E #8E187B #8E6618 #188E2B

square

#18408E #8E187B #8E6618 #188E2B

split-complementary

#18408E #8E2B18 #7B8E18

monochromatic

#061125 #0F285A #18408E #2158C2 #4177DF

Accessibility & contrast

On white

9.71

#18408E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#18408E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18408E

9.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18408E	#FFFFFF	#000000	##FFFFFF
##18408E	1.00	9.71	2.16	9.71
#FFFFFF	9.71	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A91

Deuteranopia (green-blind)

#003F8C

Tritanopia (blue-blind)

#005360

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #18408e;
/* rgb */ color: rgb(24, 64, 142);
/* oklch */ color: oklch(39.3% 0.137 261.9);

Tailwind

colors: {
  custom: {
    50: '#6a74b0',
    500: '#18408e',
    950: '#000000',
  },
}

SCSS

$custom: #18408e;
$custom-light: #6a74b0;
$custom-dark: #000000;

JSON

{
  "hex": "#18408e",
  "rgb": {
    "r": 24,
    "g": 64,
    "b": 142
  },
  "hsl": {
    "h": 219.661,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.39317,
    "c": 0.13732,
    "h": 261.9
  },
  "luminance": 0.05814
}

Semantic roles & 50–950 ramp

primary

#18408E

secondary

#C09542

accent

#B13AEE

background

#F6F7FA

surface

#ECEDF5

border

#C7C8CF

text

#080810

muted

#7A7B7F

Preview Lab

Preview with #18408E

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

Preview Lab → · Contrast checker → · Palette generator →