#123D80#123D80

#123D80 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.3% C 0.123 H 259.4°. Best body text is #FFFFFF at 10.47:1 contrast (WCAG AA passes).

Color values

HEX	#123D80
RGB	rgb(18, 61, 128)
HSL	hsl(217, 75%, 29%)
HSV	hsv(217, 86%, 50%)
CMYK	cmyk(85.9%, 52.3%, 0%, 49.8%)
CIE-LAB	lab(26.80, 12.50, -41.90)
CIE-LCH	lch(26.80, 43.73, 286.61°)
OKLab	oklab(37.3% -0.0225 -0.1207)
OKLCH	oklch(37.3% 0.123 259.4)
XYZ	xyz(5.8131, 5.0239, 21.0812)
Luminance	0.0503 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D80 #805512

analogous

#127480 #123D80 #1E1280

triadic

#123D80 #80123D #3D8012

tetradic

#123D80 #801274 #805512 #12801E

square

#123D80 #801274 #805512 #12801E

split-complementary

#123D80 #801E12 #748012

monochromatic

#040D1B #0A234A #123D80 #1A57B6 #2B72E1

Accessibility & contrast

On white

10.47

#123D80 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#123D80 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D80

10.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D80	#FFFFFF	#000000	##FFFFFF
##123D80	1.00	10.47	2.01	10.47
#FFFFFF	10.47	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#114582

Deuteranopia (green-blind)

#003B7F

Tritanopia (blue-blind)

#004D58

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123d80;
/* rgb */ color: rgb(18, 61, 128);
/* oklch */ color: oklch(37.3% 0.123 259.4);

Tailwind

colors: {
  custom: {
    50: '#6571a5',
    500: '#123d80',
    950: '#000000',
  },
}

SCSS

$custom: #123d80;
$custom-light: #6571a5;
$custom-dark: #000000;

JSON

{
  "hex": "#123d80",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 128
  },
  "hsl": {
    "h": 216.545,
    "s": 75.342,
    "l": 28.627
  },
  "oklch": {
    "l": 0.37302,
    "c": 0.1228,
    "h": 259.4
  },
  "luminance": 0.05025
}

Semantic roles & 50–950 ramp

primary

#123D80

secondary

#B68538

accent

#A836F2

background

#F6F6FA

surface

#EBECF4

border

#C6C7CE

text

#07070F

muted

#7A7A7F

Preview Lab

Preview with #123D80

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

Preview Lab → · Contrast checker → · Palette generator →