#18389F#18389F

#18389F is a dark, vivid blue. Relative luminance 0.055; OKLCH L 39.2% C 0.171 H 265.4°. Best body text is #FFFFFF at 9.98:1 contrast (WCAG AA passes).

Color values

HEX	#18389F
RGB	rgb(24, 56, 159)
HSL	hsl(226, 74%, 36%)
HSV	hsv(226, 85%, 62%)
CMYK	cmyk(84.9%, 64.8%, 0%, 37.6%)
CIE-LAB	lab(28.18, 29.12, -58.76)
CIE-LCH	lch(28.18, 65.58, 296.36°)
OKLab	oklab(39.2% -0.0137 -0.1702)
OKLCH	oklch(39.2% 0.171 265.4)
XYZ	xyz(8.0467, 5.5248, 33.4364)
Luminance	0.0553 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18389F #9F7F18

analogous

#187B9F #18389F #3C189F

triadic

#18389F #9F1838 #389F18

tetradic

#18389F #9F187B #9F7F18 #189F3C

square

#18389F #9F187B #9F7F18 #189F3C

split-complementary

#18389F #9F3C18 #7B9F18

monochromatic

#081335 #10256A #18389F #204BD4 #4D71E4

Accessibility & contrast

On white

9.98

#18389F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#18389F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18389F

9.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18389F	#FFFFFF	#000000	##FFFFFF
##18389F	1.00	9.98	2.11	9.98
#FFFFFF	9.98	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0049A2

Deuteranopia (green-blind)

#003C9D

Tritanopia (blue-blind)

#005366

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #18389f;
/* rgb */ color: rgb(24, 56, 159);
/* oklch */ color: oklch(39.2% 0.171 265.4);

Tailwind

colors: {
  custom: {
    50: '#6f6ebc',
    500: '#18389f',
    950: '#000000',
  },
}

SCSS

$custom: #18389f;
$custom-light: #6f6ebc;
$custom-dark: #000000;

JSON

{
  "hex": "#18389f",
  "rgb": {
    "r": 24,
    "g": 56,
    "b": 159
  },
  "hsl": {
    "h": 225.778,
    "s": 73.77,
    "l": 35.882
  },
  "oklch": {
    "l": 0.39199,
    "c": 0.17074,
    "h": 265.4
  },
  "luminance": 0.05526
}

Semantic roles & 50–950 ramp

primary

#18389F

secondary

#C6A94D

accent

#C537F0

background

#F7F6FB

surface

#EDEBF7

border

#C8C6D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #18389F

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

Preview Lab → · Contrast checker → · Palette generator →