#123983#123983

#123983 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.6% C 0.132 H 261.6°. Best body text is #FFFFFF at 10.83:1 contrast (WCAG AA passes).

Color values

HEX	#123983
RGB	rgb(18, 57, 131)
HSL	hsl(219, 76%, 29%)
HSV	hsv(219, 86%, 51%)
CMYK	cmyk(86.3%, 56.5%, 0%, 48.6%)
CIE-LAB	lab(25.84, 16.59, -45.34)
CIE-LCH	lch(25.84, 48.28, 290.10°)
OKLab	oklab(36.64% -0.0193 -0.1309)
OKLCH	oklch(36.64% 0.132 261.6)
XYZ	xyz(5.8078, 4.6928, 22.0680)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123983 #835C12

analogous

#127283 #123983 #241283

triadic

#123983 #831239 #398312

tetradic

#123983 #831272 #835C12 #128324

square

#123983 #831272 #835C12 #128324

split-complementary

#123983 #832412 #728312

monochromatic

#040C1B #0B224D #123983 #1950B9 #2D6CE2

Accessibility & contrast

On white

10.83

#123983 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#123983 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123983

10.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123983	#FFFFFF	#000000	##FFFFFF
##123983	1.00	10.83	1.94	10.83
#FFFFFF	10.83	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004386

Deuteranopia (green-blind)

#003882

Tritanopia (blue-blind)

#004B58

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123983;
/* rgb */ color: rgb(18, 57, 131);
/* oklch */ color: oklch(36.6% 0.132 261.6);

Tailwind

colors: {
  custom: {
    50: '#666ea8',
    500: '#123983',
    950: '#000000',
  },
}

SCSS

$custom: #123983;
$custom-light: #666ea8;
$custom-dark: #000000;

JSON

{
  "hex": "#123983",
  "rgb": {
    "r": 18,
    "g": 57,
    "b": 131
  },
  "hsl": {
    "h": 219.292,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.36643,
    "c": 0.13232,
    "h": 261.6
  },
  "luminance": 0.04694
}

Semantic roles & 50–950 ramp

primary

#123983

secondary

#B88C38

accent

#B135F2

background

#F6F6FA

surface

#EBEBF4

border

#C6C6CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #123983

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

Preview Lab → · Contrast checker → · Palette generator →