#182E5B#182E5B

#182E5B is a dark, moderate blue. Relative luminance 0.029; OKLCH L 31.0% C 0.085 H 262.8°. Best body text is #FFFFFF at 13.28:1 contrast (WCAG AA passes).

Color values

HEX	#182E5B
RGB	rgb(24, 46, 91)
HSL	hsl(220, 58%, 23%)
HSV	hsv(220, 74%, 36%)
CMYK	cmyk(73.6%, 49.5%, 0%, 64.3%)
CIE-LAB	lab(19.65, 8.47, -29.62)
CIE-LCH	lch(19.65, 30.80, 285.96°)
OKLab	oklab(31.02% -0.0107 -0.0848)
OKLCH	oklch(31.02% 0.085 262.8)
XYZ	xyz(3.2413, 2.9032, 10.2851)
Luminance	0.0290 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182E5B #5B4518

analogous

#184F5B #182E5B #24185B

triadic

#182E5B #5B182E #2E5B18

tetradic

#182E5B #5B184F #5B4518 #185B24

square

#182E5B #5B184F #5B4518 #185B24

split-complementary

#182E5B #5B2418 #4F5B18

monochromatic

#060C18 #0B162B #182E5B #25468B #325FBC

Accessibility & contrast

On white

13.28

#182E5B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.58

#182E5B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182E5B

13.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182E5B	#FFFFFF	#000000	##FFFFFF
##182E5B	1.00	13.28	1.58	13.28
#FFFFFF	13.28	1.00	21.00	1.00
#000000	1.58	21.00	1.00	21.00
##FFFFFF	13.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#17335D

Deuteranopia (green-blind)

#0A2D5A

Tritanopia (blue-blind)

#003840

Achromatopsia (no color)

#303030

Design tokens & code

CSS

--color: #182e5b;
/* rgb */ color: rgb(24, 46, 91);
/* oklch */ color: oklch(31.0% 0.085 262.8);

Tailwind

colors: {
  custom: {
    50: '#5e668a',
    500: '#182e5b',
    950: '#000000',
  },
}

SCSS

$custom: #182e5b;
$custom-light: #5e668a;
$custom-dark: #000000;

JSON

{
  "hex": "#182e5b",
  "rgb": {
    "r": 24,
    "g": 46,
    "b": 91
  },
  "hsl": {
    "h": 220.299,
    "s": 58.261,
    "l": 22.549
  },
  "oklch": {
    "l": 0.31017,
    "c": 0.08544,
    "h": 262.8
  },
  "luminance": 0.02904
}

Semantic roles & 50–950 ramp

primary

#182E5B

secondary

#92763D

accent

#AF46E1

background

#F5F6F8

surface

#E9EBF0

border

#C5C6CB

text

#05050B

muted

#797A7C

Preview Lab

Preview with #182E5B

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

Preview Lab → · Contrast checker → · Palette generator →