#182F55#182F55

#182F55 is a dark, moderate blue. Relative luminance 0.029; OKLCH L 30.8% C 0.075 H 259.9°. Best body text is #FFFFFF at 13.32:1 contrast (WCAG AA passes).

Color values

HEX	#182F55
RGB	rgb(24, 47, 85)
HSL	hsl(217, 56%, 21%)
HSV	hsv(217, 72%, 33%)
CMYK	cmyk(71.8%, 44.7%, 0%, 66.7%)
CIE-LAB	lab(19.57, 5.27, -25.76)
CIE-LCH	lch(19.57, 26.30, 281.56°)
OKLab	oklab(30.82% -0.0131 -0.0734)
OKLCH	oklch(30.82% 0.075 259.9)
XYZ	xyz(3.0323, 2.8828, 8.9892)
Luminance	0.0288 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F55 #553E18

analogous

#184E55 #182F55 #201855

triadic

#182F55 #55182F #2F5518

tetradic

#182F55 #55184E #553E18 #185520

square

#182F55 #55184E #553E18 #185520

split-complementary

#182F55 #552018 #4E5518

monochromatic

#070D18 #0B1525 #182F55 #254985 #3364B4

Accessibility & contrast

On white

13.32

#182F55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182F55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F55

13.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F55	#FFFFFF	#000000	##FFFFFF
##182F55	1.00	13.32	1.58	13.32
#FFFFFF	13.32	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1E3256

Deuteranopia (green-blind)

#142D54

Tritanopia (blue-blind)

#00383D

Achromatopsia (no color)

#2F2F2F

Design tokens & code

CSS

--color: #182f55;
/* rgb */ color: rgb(24, 47, 85);
/* oklch */ color: oklch(30.8% 0.075 259.9);

Tailwind

colors: {
  custom: {
    50: '#5d6785',
    500: '#182f55',
    950: '#000000',
  },
}

SCSS

$custom: #182f55;
$custom-light: #5d6785;
$custom-dark: #000000;

JSON

{
  "hex": "#182f55",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 85
  },
  "hsl": {
    "h": 217.377,
    "s": 55.963,
    "l": 21.373
  },
  "oklch": {
    "l": 0.30821,
    "c": 0.07458,
    "h": 259.9
  },
  "luminance": 0.02883
}

Semantic roles & 50–950 ramp

primary

#182F55

secondary

#8C6E3D

accent

#A649DF

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #182F55

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

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