#182B8E#182B8E

#182B8E is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.1% C 0.164 H 267.7°. Best body text is #FFFFFF at 11.83:1 contrast (WCAG AA passes).

Color values

HEX	#182B8E
RGB	rgb(24, 43, 142)
HSL	hsl(230, 71%, 33%)
HSV	hsv(230, 83%, 56%)
CMYK	cmyk(83.1%, 69.7%, 0%, 44.3%)
CIE-LAB	lab(23.25, 31.23, -56.42)
CIE-LCH	lch(23.25, 64.49, 298.97°)
OKLab	oklab(35.08% -0.0067 -0.1635)
OKLCH	oklch(35.08% 0.164 267.7)
XYZ	xyz(6.1214, 3.8742, 26.0111)
Luminance	0.0387 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B8E #8E7B18

analogous

#18668E #182B8E #40188E

triadic

#182B8E #8E182B #2B8E18

tetradic

#182B8E #8E1866 #8E7B18 #188E40

square

#182B8E #8E1866 #8E7B18 #188E40

split-complementary

#182B8E #8E4018 #668E18

monochromatic

#060B25 #0F1B5A #182B8E #213BC2 #415BDF

Accessibility & contrast

On white

11.83

#182B8E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#182B8E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B8E

11.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B8E	#FFFFFF	#000000	##FFFFFF
##182B8E	1.00	11.83	1.78	11.83
#FFFFFF	11.83	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D91

Deuteranopia (green-blind)

#00328C

Tritanopia (blue-blind)

#004659

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #182b8e;
/* rgb */ color: rgb(24, 43, 142);
/* oklch */ color: oklch(35.1% 0.164 267.7);

Tailwind

colors: {
  custom: {
    50: '#6c64b0',
    500: '#182b8e',
    950: '#000000',
  },
}

SCSS

$custom: #182b8e;
$custom-light: #6c64b0;
$custom-dark: #000000;

JSON

{
  "hex": "#182b8e",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 142
  },
  "hsl": {
    "h": 230.339,
    "s": 71.084,
    "l": 32.549
  },
  "oklch": {
    "l": 0.35084,
    "c": 0.1636,
    "h": 267.7
  },
  "luminance": 0.03875
}

Semantic roles & 50–950 ramp

primary

#182B8E

secondary

#C0AB42

accent

#D13AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #182B8E

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

Preview Lab → · Contrast checker → · Palette generator →