#123C66#123C66

#123C66 is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.1% C 0.086 H 251.7°. Best body text is #FFFFFF at 11.27:1 contrast (WCAG AA passes).

Color values

HEX	#123C66
RGB	rgb(18, 60, 102)
HSL	hsl(210, 70%, 24%)
HSV	hsv(210, 82%, 40%)
CMYK	cmyk(82.4%, 41.2%, 0%, 60%)
CIE-LAB	lab(24.70, 2.22, -28.76)
CIE-LCH	lch(24.70, 28.84, 274.41°)
OKLab	oklab(35.1% -0.0271 -0.0821)
OKLCH	oklch(35.1% 0.086 251.7)
XYZ	xyz(4.2627, 4.3191, 13.1768)
Luminance	0.0432 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C66 #663C12

analogous

#126666 #123C66 #121266

triadic

#123C66 #66123C #3C6612

tetradic

#123C66 #661266 #663C12 #126612

square

#123C66 #661266 #663C12 #126612

split-complementary

#123C66 #661212 #666612

monochromatic

#050F1A #091D32 #123C66 #1B5B9A #2479CE

Accessibility & contrast

On white

11.27

#123C66 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123C66 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C66

11.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C66	#FFFFFF	#000000	##FFFFFF
##123C66	1.00	11.27	1.86	11.27
#FFFFFF	11.27	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#283F68

Deuteranopia (green-blind)

#1B3765

Tritanopia (blue-blind)

#00464C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123c66;
/* rgb */ color: rgb(18, 60, 102);
/* oklch */ color: oklch(35.1% 0.086 251.7);

Tailwind

colors: {
  custom: {
    50: '#5e7192',
    500: '#123c66',
    950: '#000000',
  },
}

SCSS

$custom: #123c66;
$custom-light: #5e7192;
$custom-dark: #000000;

JSON

{
  "hex": "#123c66",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 102
  },
  "hsl": {
    "h": 210,
    "s": 70,
    "l": 23.529
  },
  "oklch": {
    "l": 0.35101,
    "c": 0.08642,
    "h": 251.7
  },
  "luminance": 0.0432
}

Semantic roles & 50–950 ramp

primary

#123C66

secondary

#9E6A36

accent

#943BED

background

#F5F6F9

surface

#EAECF1

border

#C6C7CB

text

#05070D

muted

#797A7E

Preview Lab

Preview with #123C66

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

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