#182F54#182F54

#182F54 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 30.7% C 0.073 H 259.5°. Best body text is #FFFFFF at 13.35:1 contrast (WCAG AA passes).

Color values

HEX	#182F54
RGB	rgb(24, 47, 84)
HSL	hsl(217, 56%, 21%)
HSV	hsv(217, 71%, 33%)
CMYK	cmyk(71.4%, 44%, 0%, 67.1%)
CIE-LAB	lab(19.50, 4.86, -25.20)
CIE-LCH	lch(19.50, 25.66, 280.91°)
OKLab	oklab(30.75% -0.0133 -0.0718)
OKLCH	oklch(30.75% 0.073 259.5)
XYZ	xyz(2.9929, 2.8670, 8.7815)
Luminance	0.0287 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F54 #543D18

analogous

#184D54 #182F54 #1F1854

triadic

#182F54 #54182F #2F5418

tetradic

#182F54 #54184D #543D18 #18541F

square

#182F54 #54184D #543D18 #18541F

split-complementary

#182F54 #541F18 #4D5418

monochromatic

#070D18 #0A1424 #182F54 #264A84 #3364B3

Accessibility & contrast

On white

13.35

#182F54 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.57

#182F54 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F54

13.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F54	#FFFFFF	#000000	##FFFFFF
##182F54	1.00	13.35	1.57	13.35
#FFFFFF	13.35	1.00	21.00	1.00
#000000	1.57	21.00	1.00	21.00
##FFFFFF	13.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3255

Deuteranopia (green-blind)

#152D53

Tritanopia (blue-blind)

#00373D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182f54;
/* rgb */ color: rgb(24, 47, 84);
/* oklch */ color: oklch(30.7% 0.073 259.5);

Tailwind

colors: {
  custom: {
    50: '#5c6784',
    500: '#182f54',
    950: '#000000',
  },
}

SCSS

$custom: #182f54;
$custom-light: #5c6784;
$custom-dark: #000000;

JSON

{
  "hex": "#182f54",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 84
  },
  "hsl": {
    "h": 217,
    "s": 55.556,
    "l": 21.176
  },
  "oklch": {
    "l": 0.30749,
    "c": 0.07301,
    "h": 259.5
  },
  "luminance": 0.02867
}

Semantic roles & 50–950 ramp

primary

#182F54

secondary

#8B6D3D

accent

#A549DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #182F54

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

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