#123B63#123B63

#123B63 is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.6% C 0.083 H 251.1°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#123B63
RGB	rgb(18, 59, 99)
HSL	hsl(210, 69%, 23%)
HSV	hsv(210, 82%, 39%)
CMYK	cmyk(81.8%, 40.4%, 0%, 61.2%)
CIE-LAB	lab(24.18, 1.65, -27.64)
CIE-LCH	lch(24.18, 27.68, 273.41°)
OKLab	oklab(34.64% -0.0269 -0.0788)
OKLCH	oklch(34.64% 0.083 251.1)
XYZ	xyz(4.0647, 4.1569, 12.3901)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B63 #633A12

analogous

#126362 #123B63 #121263

triadic

#123B63 #63123B #3B6312

tetradic

#123B63 #621263 #633A12 #126312

square

#123B63 #621263 #633A12 #126312

split-complementary

#123B63 #631212 #636212

monochromatic

#050F1A #091C2F #123B63 #1B5A97 #2579CB

Accessibility & contrast

On white

11.47

#123B63 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#123B63 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B63

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B63	#FFFFFF	#000000	##FFFFFF
##123B63	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283E65

Deuteranopia (green-blind)

#1C3662

Tritanopia (blue-blind)

#00444A

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #123b63;
/* rgb */ color: rgb(18, 59, 99);
/* oklch */ color: oklch(34.6% 0.083 251.1);

Tailwind

colors: {
  custom: {
    50: '#5e708f',
    500: '#123b63',
    950: '#000000',
  },
}

SCSS

$custom: #123b63;
$custom-light: #5e708f;
$custom-dark: #000000;

JSON

{
  "hex": "#123b63",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 99
  },
  "hsl": {
    "h": 209.63,
    "s": 69.231,
    "l": 22.941
  },
  "oklch": {
    "l": 0.34637,
    "c": 0.08327,
    "h": 251.1
  },
  "luminance": 0.04157
}

Semantic roles & 50–950 ramp

primary

#123B63

secondary

#9B6836

accent

#933CEC

background

#F5F6F8

surface

#EAECF0

border

#C6C7CB

text

#05070C

muted

#797A7D

Preview Lab

Preview with #123B63

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

Preview Lab → · Contrast checker → · Palette generator →