#123683#123683

#123683 is a dark, vivid blue. Relative luminance 0.044; OKLCH L 36.0% C 0.136 H 262.7°. Best body text is #FFFFFF at 11.16:1 contrast (WCAG AA passes).

Color values

HEX	#123683
RGB	rgb(18, 54, 131)
HSL	hsl(221, 76%, 29%)
HSV	hsv(221, 86%, 51%)
CMYK	cmyk(86.3%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(24.97, 18.71, -46.76)
CIE-LCH	lch(24.97, 50.37, 291.81°)
OKLab	oklab(35.98% -0.0173 -0.1351)
OKLCH	oklch(35.98% 0.136 262.7)
XYZ	xyz(5.6639, 4.4049, 22.0200)
Luminance	0.0441 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123683 #835F12

analogous

#126F83 #123683 #271283

triadic

#123683 #831236 #368312

tetradic

#123683 #83126F #835F12 #128327

square

#123683 #83126F #835F12 #128327

split-complementary

#123683 #832712 #6F8312

monochromatic

#040B1B #0B204D #123683 #194CB9 #2D67E2

Accessibility & contrast

On white

11.16

#123683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#123683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123683

11.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123683	#FFFFFF	#000000	##FFFFFF
##123683	1.00	11.16	1.88	11.16
#FFFFFF	11.16	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003682

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123683;
/* rgb */ color: rgb(18, 54, 131);
/* oklch */ color: oklch(36.0% 0.136 262.7);

Tailwind

colors: {
  custom: {
    50: '#666ca8',
    500: '#123683',
    950: '#000000',
  },
}

SCSS

$custom: #123683;
$custom-light: #666ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#123683",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 220.885,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.35983,
    "c": 0.13624,
    "h": 262.7
  },
  "luminance": 0.04406
}

Semantic roles & 50–950 ramp

primary

#123683

secondary

#B89038

accent

#B635F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070610

muted

#7A7A7F

Preview Lab

Preview with #123683

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

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