#182F80#182F80

#182F80 is a dark, vivid blue. Relative luminance 0.038; OKLCH L 34.4% C 0.140 H 266.6°. Best body text is #FFFFFF at 11.95:1 contrast (WCAG AA passes).

Color values

HEX	#182F80
RGB	rgb(24, 47, 128)
HSL	hsl(227, 68%, 30%)
HSV	hsv(227, 81%, 50%)
CMYK	cmyk(81.3%, 63.3%, 0%, 49.8%)
CIE-LAB	lab(22.95, 23.00, -48.16)
CIE-LCH	lch(22.95, 53.37, 295.53°)
OKLab	oklab(34.45% -0.0084 -0.1393)
OKLCH	oklch(34.45% 0.14 266.6)
XYZ	xyz(5.2881, 3.7851, 20.8698)
Luminance	0.0379 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#182F80 #806918

analogous

#186380 #182F80 #351880

triadic

#182F80 #80182F #2F8018

tetradic

#182F80 #801863 #806918 #188035

square

#182F80 #801863 #806918 #188035

split-complementary

#182F80 #803518 #638018

monochromatic

#05091A #0E1C4C #182F80 #2242B4 #395CDA

Accessibility & contrast

On white

11.95

#182F80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.76

#182F80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #182F80

11.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##182F80	#FFFFFF	#000000	##FFFFFF
##182F80	1.00	11.95	1.76	11.95
#FFFFFF	11.95	1.00	21.00	1.00
#000000	1.76	21.00	1.00	21.00
##FFFFFF	11.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#003C83

Deuteranopia (green-blind)

#00327E

Tritanopia (blue-blind)

#004452

Achromatopsia (no color)

#373737

Design tokens & code

CSS

--color: #182f80;
/* rgb */ color: rgb(24, 47, 128);
/* oklch */ color: oklch(34.4% 0.140 266.6);

Tailwind

colors: {
  custom: {
    50: '#6867a6',
    500: '#182f80',
    950: '#000000',
  },
}

SCSS

$custom: #182f80;
$custom-light: #6867a6;
$custom-dark: #000000;

JSON

{
  "hex": "#182f80",
  "rgb": {
    "r": 24,
    "g": 47,
    "b": 128
  },
  "hsl": {
    "h": 226.731,
    "s": 68.421,
    "l": 29.804
  },
  "oklch": {
    "l": 0.3445,
    "c": 0.13952,
    "h": 266.6
  },
  "luminance": 0.03786
}

Semantic roles & 50–950 ramp

primary

#182F80

secondary

#B49A40

accent

#C53DEB

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#07060F

muted

#7A7A7F

Preview Lab

Preview with #182F80

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

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