#182B5F#182B5F

#182B5F is a dark, moderate blue. Relative luminance 0.027; OKLCH L 30.6% C 0.096 H 265.8°. Best body text is #FFFFFF at 13.55:1 contrast (WCAG AA passes).

Color values

HEX	#182B5F
RGB	rgb(24, 43, 95)
HSL	hsl(224, 60%, 23%)
HSV	hsv(224, 75%, 37%)
CMYK	cmyk(74.7%, 54.7%, 0%, 62.7%)
CIE-LAB	lab(19.00, 12.32, -33.30)
CIE-LCH	lch(19.00, 35.51, 290.31°)
OKLab	oklab(30.62% -0.007 -0.0957)
OKLCH	oklch(30.62% 0.096 265.8)
XYZ	xyz(3.3054, 2.7478, 11.1804)
Luminance	0.0275 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B5F #5F4C18

analogous

#184E5F #182B5F #28185F

triadic

#182B5F #5F182B #2B5F18

tetradic

#182B5F #5F184E #5F4C18 #185F28

square

#182B5F #5F184E #5F4C18 #185F28

split-complementary

#182B5F #5F2818 #4E5F18

monochromatic

#060B18 #0C152E #182B5F #244190 #3157C1

Accessibility & contrast

On white

13.55

#182B5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.55

#182B5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B5F

13.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B5F	#FFFFFF	#000000	##FFFFFF
##182B5F	1.00	13.55	1.55	13.55
#FFFFFF	13.55	1.00	21.00	1.00
#000000	1.55	21.00	1.00	21.00
##FFFFFF	13.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0B3261

Deuteranopia (green-blind)

#002B5E

Tritanopia (blue-blind)

#003740

Achromatopsia (no color)

#2E2E2E

Design tokens & code

CSS

--color: #182b5f;
/* rgb */ color: rgb(24, 43, 95);
/* oklch */ color: oklch(30.6% 0.096 265.8);

Tailwind

colors: {
  custom: {
    50: '#5f638d',
    500: '#182b5f',
    950: '#000000',
  },
}

SCSS

$custom: #182b5f;
$custom-light: #5f638d;
$custom-dark: #000000;

JSON

{
  "hex": "#182b5f",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 95
  },
  "hsl": {
    "h": 223.944,
    "s": 59.664,
    "l": 23.333
  },
  "oklch": {
    "l": 0.30617,
    "c": 0.09592,
    "h": 265.8
  },
  "luminance": 0.02748
}

Semantic roles & 50–950 ramp

primary

#182B5F

secondary

#957E3D

accent

#B945E3

background

#F5F5F8

surface

#EAEAF0

border

#C6C6CB

text

#05050C

muted

#79797D

Preview Lab

Preview with #182B5F

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

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