#18356B#18356B

#18356B is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.0% C 0.101 H 261.5°. Best body text is #FFFFFF at 11.93:1 contrast (WCAG AA passes).

Color values

HEX	#18356B
RGB	rgb(24, 53, 107)
HSL	hsl(219, 63%, 26%)
HSV	hsv(219, 78%, 42%)
CMYK	cmyk(77.6%, 50.5%, 0%, 58%)
CIE-LAB	lab(23.00, 10.08, -34.68)
CIE-LCH	lch(23.00, 36.12, 286.20°)
OKLab	oklab(33.96% -0.0149 -0.0995)
OKLCH	oklch(33.96% 0.101 261.5)
XYZ	xyz(4.3027, 3.8015, 14.4141)
Luminance	0.0380 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18356B #6B4E18

analogous

#185E6B #18356B #24186B

triadic

#18356B #6B1835 #356B18

tetradic

#18356B #6B185E #6B4E18 #186B24

square

#18356B #6B185E #6B4E18 #186B24

split-complementary

#18356B #6B2418 #5E6B18

monochromatic

#060C19 #0D1C39 #18356B #234E9D #2E67CF

Accessibility & contrast

On white

11.93

#18356B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#18356B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18356B

11.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18356B	#FFFFFF	#000000	##FFFFFF
##18356B	1.00	11.93	1.76	11.93
#FFFFFF	11.93	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#173B6D

Deuteranopia (green-blind)

#02336A

Tritanopia (blue-blind)

#00424A

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18356b;
/* rgb */ color: rgb(24, 53, 107);
/* oklch */ color: oklch(34.0% 0.101 261.5);

Tailwind

colors: {
  custom: {
    50: '#626b96',
    500: '#18356b',
    950: '#000000',
  },
}

SCSS

$custom: #18356b;
$custom-light: #626b96;
$custom-dark: #000000;

JSON

{
  "hex": "#18356b",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 107
  },
  "hsl": {
    "h": 219.036,
    "s": 63.359,
    "l": 25.686
  },
  "oklch": {
    "l": 0.33956,
    "c": 0.10065,
    "h": 261.5
  },
  "luminance": 0.03802
}

Semantic roles & 50–950 ramp

primary

#18356B

secondary

#A17E3E

accent

#AD41E6

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18356B

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

Preview Lab → · Contrast checker → · Palette generator →