#18284F#18284F

#18284F is a dark, moderate blue. Relative luminance 0.023; OKLCH L 28.6% C 0.075 H 265.2°. Best body text is #FFFFFF at 14.43:1 contrast (WCAG AA passes).

Color values

HEX	#18284F
RGB	rgb(24, 40, 79)
HSL	hsl(223, 53%, 20%)
HSV	hsv(223, 70%, 31%)
CMYK	cmyk(69.6%, 49.4%, 0%, 69%)
CIE-LAB	lab(16.87, 7.91, -26.03)
CIE-LCH	lch(16.87, 27.21, 286.90°)
OKLab	oklab(28.61% -0.0062 -0.0743)
OKLCH	oklch(28.61% 0.075 265.2)
XYZ	xyz(2.5463, 2.2761, 7.7008)
Luminance	0.0228 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18284F #4F3F18

analogous

#18444F #18284F #23184F

triadic

#18284F #4F1828 #284F18

tetradic

#18284F #4F1844 #4F3F18 #184F23

square

#18284F #4F1844 #4F3F18 #184F23

split-complementary

#18284F #4F2318 #444F18

monochromatic

#070C17 #0A1020 #18284F #26407E #3558AD

Accessibility & contrast

On white

14.43

#18284F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.46

#18284F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18284F

14.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18284F	#FFFFFF	#000000	##FFFFFF
##18284F	1.00	14.43	1.46	14.43
#FFFFFF	14.43	1.00	21.00	1.00
#000000	1.46	21.00	1.00	21.00
##FFFFFF	14.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#152C50

Deuteranopia (green-blind)

#0C274E

Tritanopia (blue-blind)

#003137

Achromatopsia (no color)

#2A2A2A

Design tokens & code

CSS

--color: #18284f;
/* rgb */ color: rgb(24, 40, 79);
/* oklch */ color: oklch(28.6% 0.075 265.2);

Tailwind

colors: {
  custom: {
    50: '#5b6180',
    500: '#18284f',
    950: '#000000',
  },
}

SCSS

$custom: #18284f;
$custom-light: #5b6180;
$custom-dark: #000000;

JSON

{
  "hex": "#18284f",
  "rgb": {
    "r": 24,
    "g": 40,
    "b": 79
  },
  "hsl": {
    "h": 222.545,
    "s": 53.398,
    "l": 20.196
  },
  "oklch": {
    "l": 0.28613,
    "c": 0.07459,
    "h": 265.2
  },
  "luminance": 0.02276
}

Semantic roles & 50–950 ramp

primary

#18284F

secondary

#86713D

accent

#B24BDD

background

#F5F5F7

surface

#E9E9EE

border

#C5C5C9

text

#04050A

muted

#79797C

Preview Lab

Preview with #18284F

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

Preview Lab → · Contrast checker → · Palette generator →