#123B83#123B83

#123B83 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.130 H 260.8°. Best body text is #FFFFFF at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#123B83
RGB	rgb(18, 59, 131)
HSL	hsl(218, 76%, 29%)
HSV	hsv(218, 86%, 51%)
CMYK	cmyk(86.3%, 55%, 0%, 48.6%)
CIE-LAB	lab(26.43, 15.17, -44.38)
CIE-LCH	lch(26.43, 46.90, 288.88°)
OKLab	oklab(37.09% -0.0207 -0.128)
OKLCH	oklch(37.09% 0.13 260.8)
XYZ	xyz(5.9087, 4.8945, 22.1016)
Luminance	0.0490 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B83 #835A12

analogous

#127483 #123B83 #221283

triadic

#123B83 #83123B #3B8312

tetradic

#123B83 #831274 #835A12 #128322

square

#123B83 #831274 #835A12 #128322

split-complementary

#123B83 #832212 #748312

monochromatic

#040C1B #0B234D #123B83 #1953B9 #2D6FE2

Accessibility & contrast

On white

10.61

#123B83 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#123B83 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B83

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B83	#FFFFFF	#000000	##FFFFFF
##123B83	1.00	10.61	1.98	10.61
#FFFFFF	10.61	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#024486

Deuteranopia (green-blind)

#003A82

Tritanopia (blue-blind)

#004D59

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123b83;
/* rgb */ color: rgb(18, 59, 131);
/* oklch */ color: oklch(37.1% 0.130 260.8);

Tailwind

colors: {
  custom: {
    50: '#6670a8',
    500: '#123b83',
    950: '#000000',
  },
}

SCSS

$custom: #123b83;
$custom-light: #6670a8;
$custom-dark: #000000;

JSON

{
  "hex": "#123b83",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 131
  },
  "hsl": {
    "h": 218.23,
    "s": 75.839,
    "l": 29.216
  },
  "oklch": {
    "l": 0.37092,
    "c": 0.1297,
    "h": 260.8
  },
  "luminance": 0.04895
}

Semantic roles & 50–950 ramp

primary

#123B83

secondary

#B88A38

accent

#AE35F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#070710

muted

#7A7A7F

Preview Lab

Preview with #123B83

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

Preview Lab → · Contrast checker → · Palette generator →