#123B73#123B73

#123B73 is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.8% C 0.107 H 257.5°. Best body text is #FFFFFF at 11.06:1 contrast (WCAG AA passes).

Color values

HEX	#123B73
RGB	rgb(18, 59, 115)
HSL	hsl(215, 73%, 26%)
HSV	hsv(215, 84%, 45%)
CMYK	cmyk(84.3%, 48.7%, 0%, 54.9%)
CIE-LAB	lab(25.24, 8.41, -36.22)
CIE-LCH	lch(25.24, 37.18, 283.08°)
OKLab	oklab(35.8% -0.0231 -0.104)
OKLCH	oklch(35.8% 0.107 257.5)
XYZ	xyz(4.9068, 4.4937, 16.8251)
Luminance	0.0449 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B73 #734A12

analogous

#126B73 #123B73 #191273

triadic

#123B73 #73123B #3B7312

tetradic

#123B73 #73126B #734A12 #127319

square

#123B73 #73126B #734A12 #127319

split-complementary

#123B73 #731912 #6B7312

monochromatic

#040E1A #0A203E #123B73 #1A56A8 #2371DD

Accessibility & contrast

On white

11.06

#123B73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#123B73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B73

11.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B73	#FFFFFF	#000000	##FFFFFF
##123B73	1.00	11.06	1.90	11.06
#FFFFFF	11.06	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1C4175

Deuteranopia (green-blind)

#033872

Tritanopia (blue-blind)

#004851

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123b73;
/* rgb */ color: rgb(18, 59, 115);
/* oklch */ color: oklch(35.8% 0.107 257.5);

Tailwind

colors: {
  custom: {
    50: '#62709c',
    500: '#123b73',
    950: '#000000',
  },
}

SCSS

$custom: #123b73;
$custom-light: #62709c;
$custom-dark: #000000;

JSON

{
  "hex": "#123b73",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 115
  },
  "hsl": {
    "h": 214.639,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.358,
    "c": 0.10657,
    "h": 257.5
  },
  "luminance": 0.04494
}

Semantic roles & 50–950 ramp

primary

#123B73

secondary

#AA7937

accent

#A238F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #123B73

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

Preview Lab → · Contrast checker → · Palette generator →