#123C80#123C80

#123C80 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.1% C 0.124 H 259.9°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#123C80
RGB	rgb(18, 60, 128)
HSL	hsl(217, 75%, 29%)
HSV	hsv(217, 86%, 50%)
CMYK	cmyk(85.9%, 53.1%, 0%, 49.8%)
CIE-LAB	lab(26.50, 13.21, -42.39)
CIE-LCH	lch(26.50, 44.40, 287.30°)
OKLab	oklab(37.07% -0.0218 -0.1222)
OKLCH	oklch(37.07% 0.124 259.9)
XYZ	xyz(5.7602, 4.9181, 21.0636)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C80 #805612

analogous

#127380 #123C80 #1F1280

triadic

#123C80 #80123C #3C8012

tetradic

#123C80 #801273 #805612 #12801F

square

#123C80 #801273 #805612 #12801F

split-complementary

#123C80 #801F12 #738012

monochromatic

#040D1B #0A234A #123C80 #1A55B6 #2B71E1

Accessibility & contrast

On white

10.59

#123C80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#123C80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C80

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C80	#FFFFFF	#000000	##FFFFFF
##123C80	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0E4482

Deuteranopia (green-blind)

#003A7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123c80;
/* rgb */ color: rgb(18, 60, 128);
/* oklch */ color: oklch(37.1% 0.124 259.9);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#123c80',
    950: '#000000',
  },
}

SCSS

$custom: #123c80;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#123c80",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 128
  },
  "hsl": {
    "h": 217.091,
    "s": 75.342,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37071,
    "c": 0.12411,
    "h": 259.9
  },
  "luminance": 0.04919
}

Semantic roles & 50–950 ramp

primary

#123C80

secondary

#B68638

accent

#AA36F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123C80

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

Preview Lab → · Contrast checker → · Palette generator →