#183870#183870

#183870 is a dark, moderate blue. Relative luminance 0.042; OKLCH L 35.1% C 0.104 H 260.7°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#183870
RGB	rgb(24, 56, 112)
HSL	hsl(218, 65%, 27%)
HSV	hsv(218, 79%, 44%)
CMYK	cmyk(78.6%, 50%, 0%, 56.1%)
CIE-LAB	lab(24.30, 10.02, -35.81)
CIE-LCH	lch(24.30, 37.19, 285.63°)
OKLab	oklab(35.06% -0.0168 -0.1028)
OKLCH	oklch(35.06% 0.104 260.7)
XYZ	xyz(4.7144, 4.1919, 15.8867)
Luminance	0.0419 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#183870 #705018

analogous

#186470 #183870 #241870

triadic

#183870 #701838 #387018

tetradic

#183870 #701864 #705018 #187024

square

#183870 #701864 #705018 #187024

split-complementary

#183870 #702418 #647018

monochromatic

#050D19 #0D1F3E #183870 #2351A2 #306BD3

Accessibility & contrast

On white

11.42

#183870 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#183870 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #183870

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##183870	#FFFFFF	#000000	##FFFFFF
##183870	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#193E72

Deuteranopia (green-blind)

#01366F

Tritanopia (blue-blind)

#00454E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #183870;
/* rgb */ color: rgb(24, 56, 112);
/* oklch */ color: oklch(35.1% 0.104 260.7);

Tailwind

colors: {
  custom: {
    50: '#636e99',
    500: '#183870',
    950: '#000000',
  },
}

SCSS

$custom: #183870;
$custom-light: #636e99;
$custom-dark: #000000;

JSON

{
  "hex": "#183870",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 112
  },
  "hsl": {
    "h": 218.182,
    "s": 64.706,
    "l": 26.667
  },
  "oklch": {
    "l": 0.35062,
    "c": 0.10418,
    "h": 260.7
  },
  "luminance": 0.04192
}

Semantic roles & 50–950 ramp

primary

#183870

secondary

#A5803E

accent

#AB40E8

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #183870

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

Preview Lab → · Contrast checker → · Palette generator →