#123783#123783

#123783 is a dark, vivid blue. Relative luminance 0.045; OKLCH L 36.2% C 0.135 H 262.4°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#123783
RGB	rgb(18, 55, 131)
HSL	hsl(220, 76%, 29%)
HSV	hsv(220, 86%, 51%)
CMYK	cmyk(86.3%, 58%, 0%, 48.6%)
CIE-LAB	lab(25.26, 18.00, -46.29)
CIE-LCH	lch(25.26, 49.67, 291.25°)
OKLab	oklab(36.2% -0.0179 -0.1337)
OKLCH	oklch(36.2% 0.135 262.4)
XYZ	xyz(5.7109, 4.4990, 22.0357)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123783 #835E12

analogous

#127083 #123783 #261283

triadic

#123783 #831237 #378312

tetradic

#123783 #831270 #835E12 #128326

square

#123783 #831270 #835E12 #128326

split-complementary

#123783 #832612 #708312

monochromatic

#040B1B #0B204D #123783 #194EB9 #2D68E2

Accessibility & contrast

On white

11.05

#123783 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#123783 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123783

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123783	#FFFFFF	#000000	##FFFFFF
##123783	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003782

Tritanopia (blue-blind)

#004A57

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123783;
/* rgb */ color: rgb(18, 55, 131);
/* oklch */ color: oklch(36.2% 0.135 262.4);

Tailwind

colors: {
  custom: {
    50: '#666da8',
    500: '#123783',
    950: '#000000',
  },
}

SCSS

$custom: #123783;
$custom-light: #666da8;
$custom-dark: #000000;

JSON

{
  "hex": "#123783",
  "rgb": {
    "r": 18,
    "g": 55,
    "b": 131
  },
  "hsl": {
    "h": 220.354,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36201,
    "c": 0.13494,
    "h": 262.4
  },
  "luminance": 0.045
}

Semantic roles & 50–950 ramp

primary

#123783

secondary

#B88E38

accent

#B535F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #123783

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

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