#182B8F#182B8F

#182B8F is a dark, vivid blue. Relative luminance 0.039; OKLCH L 35.2% C 0.165 H 267.6°. Best body text is #FFFFFF at 11.79:1 contrast (WCAG AA passes).

Color values

HEX	#182B8F
RGB	rgb(24, 43, 143)
HSL	hsl(230, 71%, 33%)
HSV	hsv(230, 83%, 56%)
CMYK	cmyk(83.2%, 69.9%, 0%, 43.9%)
CIE-LAB	lab(23.35, 31.62, -56.88)
CIE-LCH	lch(23.35, 65.07, 299.07°)
OKLab	oklab(35.19% -0.0068 -0.1648)
OKLCH	oklch(35.19% 0.165 267.6)
XYZ	xyz(6.1968, 3.9044, 26.4083)
Luminance	0.0391 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182B8F #8F7C18

analogous

#18668F #182B8F #40188F

triadic

#182B8F #8F182B #2B8F18

tetradic

#182B8F #8F1866 #8F7C18 #188F40

square

#182B8F #8F1866 #8F7C18 #188F40

split-complementary

#182B8F #8F4018 #668F18

monochromatic

#060B26 #0F1B5B #182B8F #213BC3 #425BDF

Accessibility & contrast

On white

11.79

#182B8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#182B8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182B8F

11.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182B8F	#FFFFFF	#000000	##FFFFFF
##182B8F	1.00	11.79	1.78	11.79
#FFFFFF	11.79	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003D92

Deuteranopia (green-blind)

#00328D

Tritanopia (blue-blind)

#004759

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #182b8f;
/* rgb */ color: rgb(24, 43, 143);
/* oklch */ color: oklch(35.2% 0.165 267.6);

Tailwind

colors: {
  custom: {
    50: '#6c64b1',
    500: '#182b8f',
    950: '#000000',
  },
}

SCSS

$custom: #182b8f;
$custom-light: #6c64b1;
$custom-dark: #000000;

JSON

{
  "hex": "#182b8f",
  "rgb": {
    "r": 24,
    "g": 43,
    "b": 143
  },
  "hsl": {
    "h": 230.42,
    "s": 71.257,
    "l": 32.745
  },
  "oklch": {
    "l": 0.35188,
    "c": 0.16492,
    "h": 267.6
  },
  "luminance": 0.03905
}

Semantic roles & 50–950 ramp

primary

#182B8F

secondary

#C0AC43

accent

#D13AEE

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#080511

muted

#7B7A80

Preview Lab

Preview with #182B8F

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

Preview Lab → · Contrast checker → · Palette generator →