#18356D#18356D

#18356D is a dark, moderate blue. Relative luminance 0.038; OKLCH L 34.1% C 0.104 H 261.9°. Best body text is #FFFFFF at 11.87:1 contrast (WCAG AA passes).

Color values

HEX	#18356D
RGB	rgb(24, 53, 109)
HSL	hsl(220, 64%, 26%)
HSV	hsv(220, 78%, 43%)
CMYK	cmyk(78%, 51.4%, 0%, 57.3%)
CIE-LAB	lab(23.15, 10.91, -35.74)
CIE-LCH	lch(23.15, 37.37, 286.98°)
OKLab	oklab(34.11% -0.0146 -0.1026)
OKLCH	oklch(34.11% 0.104 261.9)
XYZ	xyz(4.4091, 3.8440, 14.9746)
Luminance	0.0384 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#18356D #6D5018

analogous

#185F6D #18356D #25186D

triadic

#18356D #6D1835 #356D18

tetradic

#18356D #6D185F #6D5018 #186D25

square

#18356D #6D185F #6D5018 #186D25

split-complementary

#18356D #6D2518 #5F6D18

monochromatic

#060C19 #0D1D3B #18356D #234D9F #2E66D1

Accessibility & contrast

On white

11.87

#18356D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.77

#18356D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #18356D

11.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##18356D	#FFFFFF	#000000	##FFFFFF
##18356D	1.00	11.87	1.77	11.87
#FFFFFF	11.87	1.00	21.00	1.00
#000000	1.77	21.00	1.00	21.00
##FFFFFF	11.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#153B6F

Deuteranopia (green-blind)

#00346C

Tritanopia (blue-blind)

#00424B

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #18356d;
/* rgb */ color: rgb(24, 53, 109);
/* oklch */ color: oklch(34.1% 0.104 261.9);

Tailwind

colors: {
  custom: {
    50: '#626b97',
    500: '#18356d',
    950: '#000000',
  },
}

SCSS

$custom: #18356d;
$custom-light: #626b97;
$custom-dark: #000000;

JSON

{
  "hex": "#18356d",
  "rgb": {
    "r": 24,
    "g": 53,
    "b": 109
  },
  "hsl": {
    "h": 219.529,
    "s": 63.91,
    "l": 26.078
  },
  "oklch": {
    "l": 0.34114,
    "c": 0.10367,
    "h": 261.9
  },
  "luminance": 0.03845
}

Semantic roles & 50–950 ramp

primary

#18356D

secondary

#A3803E

accent

#AE41E7

background

#F6F6F9

surface

#EBEBF2

border

#C6C6CC

text

#06060D

muted

#7A7A7E

Preview Lab

Preview with #18356D

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

Preview Lab → · Contrast checker → · Palette generator →