#123D73#123D73

#123D73 is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.3% C 0.104 H 256.2°. Best body text is #FFFFFF at 10.82:1 contrast (WCAG AA passes).

Color values

HEX	#123D73
RGB	rgb(18, 61, 115)
HSL	hsl(213, 73%, 26%)
HSV	hsv(213, 84%, 45%)
CMYK	cmyk(84.3%, 47%, 0%, 54.9%)
CIE-LAB	lab(25.87, 7.01, -35.20)
CIE-LCH	lch(25.87, 35.90, 281.26°)
OKLab	oklab(36.29% -0.0248 -0.101)
OKLCH	oklch(36.29% 0.104 256.2)
XYZ	xyz(5.0116, 4.7033, 16.8600)
Luminance	0.0470 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D73 #734812

analogous

#126D73 #123D73 #171273

triadic

#123D73 #73123D #3D7312

tetradic

#123D73 #73126D #734812 #127317

square

#123D73 #73126D #734812 #127317

split-complementary

#123D73 #731712 #6D7312

monochromatic

#040E1A #0A213E #123D73 #1A59A8 #2375DD

Accessibility & contrast

On white

10.82

#123D73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#123D73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D73

10.82:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D73	#FFFFFF	#000000	##FFFFFF
##123D73	1.00	10.82	1.94	10.82
#FFFFFF	10.82	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.82	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214275

Deuteranopia (green-blind)

#0B3972

Tritanopia (blue-blind)

#004A52

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123d73;
/* rgb */ color: rgb(18, 61, 115);
/* oklch */ color: oklch(36.3% 0.104 256.2);

Tailwind

colors: {
  custom: {
    50: '#62729c',
    500: '#123d73',
    950: '#000000',
  },
}

SCSS

$custom: #123d73;
$custom-light: #62729c;
$custom-dark: #000000;

JSON

{
  "hex": "#123d73",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 115
  },
  "hsl": {
    "h": 213.402,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36288,
    "c": 0.10401,
    "h": 256.2
  },
  "luminance": 0.04704
}

Semantic roles & 50–950 ramp

primary

#123D73

secondary

#AA7737

accent

#9E38F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #123D73

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

Preview Lab → · Contrast checker → · Palette generator →