#123F73#123F73

#123F73 is a dark, moderate cyan. Relative luminance 0.049; OKLCH L 36.8% C 0.102 H 254.8°. Best body text is #FFFFFF at 10.58:1 contrast (WCAG AA passes).

Color values

HEX	#123F73
RGB	rgb(18, 63, 115)
HSL	hsl(212, 73%, 26%)
HSV	hsv(212, 84%, 45%)
CMYK	cmyk(84.3%, 45.2%, 0%, 54.9%)
CIE-LAB	lab(26.51, 5.61, -34.19)
CIE-LCH	lch(26.51, 34.64, 279.33°)
OKLab	oklab(36.78% -0.0266 -0.098)
OKLCH	oklch(36.78% 0.102 254.8)
XYZ	xyz(5.1203, 4.9208, 16.8963)
Luminance	0.0492 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123F73 #734612

analogous

#126F73 #123F73 #151273

triadic

#123F73 #73123F #3F7312

tetradic

#123F73 #73126F #734612 #127315

square

#123F73 #73126F #734612 #127315

split-complementary

#123F73 #731512 #6F7312

monochromatic

#040E1A #0A223E #123F73 #1A5CA8 #2379DD

Accessibility & contrast

On white

10.58

#123F73 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#123F73 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123F73

10.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123F73	#FFFFFF	#000000	##FFFFFF
##123F73	1.00	10.58	1.98	10.58
#FFFFFF	10.58	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.58	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#254375

Deuteranopia (green-blind)

#123B72

Tritanopia (blue-blind)

#004B53

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #123f73;
/* rgb */ color: rgb(18, 63, 115);
/* oklch */ color: oklch(36.8% 0.102 254.8);

Tailwind

colors: {
  custom: {
    50: '#62739c',
    500: '#123f73',
    950: '#000000',
  },
}

SCSS

$custom: #123f73;
$custom-light: #62739c;
$custom-dark: #000000;

JSON

{
  "hex": "#123f73",
  "rgb": {
    "r": 18,
    "g": 63,
    "b": 115
  },
  "hsl": {
    "h": 212.165,
    "s": 72.932,
    "l": 26.078
  },
  "oklch": {
    "l": 0.36781,
    "c": 0.10152,
    "h": 254.8
  },
  "luminance": 0.04921
}

Semantic roles & 50–950 ramp

primary

#123F73

secondary

#AA7537

accent

#9B38F0

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #123F73

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

Preview Lab → · Contrast checker → · Palette generator →