#182D7B#182D7B

#182D7B is a dark, vivid blue. Relative luminance 0.035; OKLCH L 33.6% C 0.135 H 267.0°. Best body text is #FFFFFF at 12.35:1 contrast (WCAG AA passes).

Color values

HEX	#182D7B
RGB	rgb(24, 45, 123)
HSL	hsl(227, 67%, 29%)
HSV	hsv(227, 80%, 48%)
CMYK	cmyk(80.5%, 63.4%, 0%, 51.8%)
CIE-LAB	lab(21.95, 22.39, -46.64)
CIE-LCH	lch(21.95, 51.73, 295.64°)
OKLab	oklab(33.57% -0.0071 -0.1348)
OKLCH	oklch(33.57% 0.135 267)
XYZ	xyz(4.8890, 3.5005, 19.1530)
Luminance	0.0350 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182D7B #7B6618

analogous

#185F7B #182D7B #35187B

triadic

#182D7B #7B182D #2D7B18

tetradic

#182D7B #7B185F #7B6618 #187B35

square

#182D7B #7B185F #7B6618 #187B35

split-complementary

#182D7B #7B3518 #5F7B18

monochromatic

#05091A #0E1A48 #182D7B #2240AE #3658D8

Accessibility & contrast

On white

12.35

#182D7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.70

#182D7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182D7B

12.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182D7B	#FFFFFF	#000000	##FFFFFF
##182D7B	1.00	12.35	1.70	12.35
#FFFFFF	12.35	1.00	21.00	1.00
#000000	1.70	21.00	1.00	21.00
##FFFFFF	12.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00397E

Deuteranopia (green-blind)

#00307A

Tritanopia (blue-blind)

#00414F

Achromatopsia (no color)

#353535

Design tokens & code

CSS

--color: #182d7b;
/* rgb */ color: rgb(24, 45, 123);
/* oklch */ color: oklch(33.6% 0.135 267.0);

Tailwind

colors: {
  custom: {
    50: '#6765a2',
    500: '#182d7b',
    950: '#000000',
  },
}

SCSS

$custom: #182d7b;
$custom-light: #6765a2;
$custom-dark: #000000;

JSON

{
  "hex": "#182d7b",
  "rgb": {
    "r": 24,
    "g": 45,
    "b": 123
  },
  "hsl": {
    "h": 227.273,
    "s": 67.347,
    "l": 28.824
  },
  "oklch": {
    "l": 0.33566,
    "c": 0.13502,
    "h": 267
  },
  "luminance": 0.03501
}

Semantic roles & 50–950 ramp

primary

#182D7B

secondary

#B0983F

accent

#C63EEA

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#07050F

muted

#7A7A7F

Preview Lab

Preview with #182D7B

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

Preview Lab → · Contrast checker → · Palette generator →