#18286B#18286B

#18286B is a dark, moderate blue. Relative luminance 0.028; OKLCH L 31.0% C 0.118 H 268.3°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#18286B
RGB	rgb(24, 40, 107)
HSL	hsl(228, 63%, 26%)
HSV	hsv(228, 78%, 42%)
CMYK	cmyk(77.6%, 62.6%, 0%, 58%)
CIE-LAB	lab(19.11, 19.46, -40.99)
CIE-LCH	lch(19.11, 45.37, 295.39°)
OKLab	oklab(31.01% -0.0035 -0.1183)
OKLCH	oklch(31.01% 0.118 268.3)
XYZ	xyz(3.7884, 2.7729, 14.2426)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18286B #6B5B18

analogous

#18516B #18286B #31186B

triadic

#18286B #6B1828 #286B18

tetradic

#18286B #6B1851 #6B5B18 #186B31

square

#18286B #6B1851 #6B5B18 #186B31

split-complementary

#18286B #6B3118 #516B18

monochromatic

#060919 #0D1539 #18286B #233B9D #2E4DCF

Accessibility & contrast

On white

13.51

#18286B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#18286B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18286B

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18286B	#FFFFFF	#000000	##FFFFFF
##18286B	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00326D

Deuteranopia (green-blind)

#002B6A

Tritanopia (blue-blind)

#003945

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #18286b;
/* rgb */ color: rgb(24, 40, 107);
/* oklch */ color: oklch(31.0% 0.118 268.3);

Tailwind

colors: {
  custom: {
    50: '#636196',
    500: '#18286b',
    950: '#000000',
  },
}

SCSS

$custom: #18286b;
$custom-light: #636196;
$custom-dark: #000000;

JSON

{
  "hex": "#18286b",
  "rgb": {
    "r": 24,
    "g": 40,
    "b": 107
  },
  "hsl": {
    "h": 228.434,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.31011,
    "c": 0.11837,
    "h": 268.3
  },
  "luminance": 0.02773
}

Semantic roles & 50–950 ramp

primary

#18286B

secondary

#A18E3E

accent

#C741E6

background

#F6F5F9

surface

#EBE9F2

border

#C6C5CC

text

#06050D

muted

#7A797E

Preview Lab

Preview with #18286B

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

Preview Lab → · Contrast checker → · Palette generator →