#182E53#182E53

#182E53 is a dark, moderate blue. Relative luminance 0.028; OKLCH L 30.4% C 0.073 H 260.2°. Best body text is #FFFFFF at 13.51:1 contrast (WCAG AA passes).

Color values

HEX	#182E53
RGB	rgb(24, 46, 83)
HSL	hsl(218, 55%, 21%)
HSV	hsv(218, 71%, 33%)
CMYK	cmyk(71.1%, 44.6%, 0%, 67.5%)
CIE-LAB	lab(19.11, 5.17, -25.16)
CIE-LCH	lch(19.11, 25.68, 281.61°)
OKLab	oklab(30.42% -0.0124 -0.0717)
OKLCH	oklch(30.42% 0.073 260.2)
XYZ	xyz(2.9145, 2.7724, 8.5635)
Luminance	0.0277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E53 #533D18

analogous

#184B53 #182E53 #1F1853

triadic

#182E53 #53182E #2E5318

tetradic

#182E53 #53184B #533D18 #18531F

square

#182E53 #53184B #533D18 #18531F

split-complementary

#182E53 #531F18 #4B5318

monochromatic

#070D18 #0A1424 #182E53 #264882 #3363B2

Accessibility & contrast

On white

13.51

#182E53 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#182E53 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E53

13.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E53	#FFFFFF	#000000	##FFFFFF
##182E53	1.00	13.51	1.55	13.51
#FFFFFF	13.51	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1D3154

Deuteranopia (green-blind)

#142C52

Tritanopia (blue-blind)

#00363C

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182e53;
/* rgb */ color: rgb(24, 46, 83);
/* oklch */ color: oklch(30.4% 0.073 260.2);

Tailwind

colors: {
  custom: {
    50: '#5c6683',
    500: '#182e53',
    950: '#000000',
  },
}

SCSS

$custom: #182e53;
$custom-light: #5c6683;
$custom-dark: #000000;

JSON

{
  "hex": "#182e53",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 83
  },
  "hsl": {
    "h": 217.627,
    "s": 55.14,
    "l": 20.98
  },
  "oklch": {
    "l": 0.30422,
    "c": 0.07273,
    "h": 260.2
  },
  "luminance": 0.02773
}

Semantic roles & 50–950 ramp

primary

#182E53

secondary

#8A6D3D

accent

#A749DE

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04050A

muted

#797A7C

Preview Lab

Preview with #182E53

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

Preview Lab → · Contrast checker → · Palette generator →