#18427D#18427D

#18427D is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.4% C 0.110 H 257.7°. Best body text is #FFFFFF at 9.93:1 contrast (WCAG AA passes).

Color values

HEX	#18427D
RGB	rgb(24, 66, 125)
HSL	hsl(215, 68%, 29%)
HSV	hsv(215, 81%, 49%)
CMYK	cmyk(80.8%, 47.2%, 0%, 51%)
CIE-LAB	lab(28.30, 8.41, -37.60)
CIE-LCH	lch(28.30, 38.53, 282.60°)
OKLab	oklab(38.44% -0.0235 -0.1079)
OKLCH	oklch(38.44% 0.11 257.7)
XYZ	xyz(6.0252, 5.5706, 20.1557)
Luminance	0.0557 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18427D #7D5318

analogous

#18757D #18427D #21187D

triadic

#18427D #7D1842 #427D18

tetradic

#18427D #7D1875 #7D5318 #187D21

square

#18427D #7D1875 #7D5318 #187D21

split-complementary

#18427D #7D2118 #757D18

monochromatic

#050E1A #0E274A #18427D #225DB0 #377AD9

Accessibility & contrast

On white

9.93

#18427D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#18427D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18427D

9.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18427D	#FFFFFF	#000000	##FFFFFF
##18427D	1.00	9.93	2.11	9.93
#FFFFFF	9.93	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#23487F

Deuteranopia (green-blind)

#0B3E7C

Tritanopia (blue-blind)

#005059

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #18427d;
/* rgb */ color: rgb(24, 66, 125);
/* oklch */ color: oklch(38.4% 0.110 257.7);

Tailwind

colors: {
  custom: {
    50: '#6675a3',
    500: '#18427d',
    950: '#000000',
  },
}

SCSS

$custom: #18427d;
$custom-light: #6675a3;
$custom-dark: #000000;

JSON

{
  "hex": "#18427d",
  "rgb": {
    "r": 24,
    "g": 66,
    "b": 125
  },
  "hsl": {
    "h": 215.05,
    "s": 67.785,
    "l": 29.216
  },
  "oklch": {
    "l": 0.38438,
    "c": 0.11039,
    "h": 257.7
  },
  "luminance": 0.05571
}

Semantic roles & 50–950 ramp

primary

#18427D

secondary

#B2823F

accent

#A33DEB

background

#F6F7FA

surface

#EBEDF4

border

#C6C8CE

text

#07080F

muted

#7A7B7F

Preview Lab

Preview with #18427D

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

Preview Lab → · Contrast checker → · Palette generator →