#123B6C#123B6C

#123B6C is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.3% C 0.096 H 255.2°. Best body text is #FFFFFF at 11.24:1 contrast (WCAG AA passes).

Color values

HEX	#123B6C
RGB	rgb(18, 59, 108)
HSL	hsl(213, 71%, 25%)
HSV	hsv(213, 83%, 42%)
CMYK	cmyk(83.3%, 45.4%, 0%, 57.6%)
CIE-LAB	lab(24.76, 5.44, -32.52)
CIE-LCH	lch(24.76, 32.97, 279.51°)
OKLab	oklab(35.27% -0.0246 -0.0931)
OKLCH	oklch(35.27% 0.096 255.2)
XYZ	xyz(4.5192, 4.3387, 14.7837)
Luminance	0.0434 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B6C #6C4312

analogous

#12686C #123B6C #16126C

triadic

#123B6C #6C123B #3B6C12

tetradic

#123B6C #6C1268 #6C4312 #126C16

square

#123B6C #6C1268 #6C4312 #126C16

split-complementary

#123B6C #6C1612 #686C12

monochromatic

#040E1A #091E38 #123B6C #1B58A0 #2374D5

Accessibility & contrast

On white

11.24

#123B6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#123B6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B6C

11.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B6C	#FFFFFF	#000000	##FFFFFF
##123B6C	1.00	11.24	1.87	11.24
#FFFFFF	11.24	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223F6E

Deuteranopia (green-blind)

#11376B

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #123b6c;
/* rgb */ color: rgb(18, 59, 108);
/* oklch */ color: oklch(35.3% 0.096 255.2);

Tailwind

colors: {
  custom: {
    50: '#607096',
    500: '#123b6c',
    950: '#000000',
  },
}

SCSS

$custom: #123b6c;
$custom-light: #607096;
$custom-dark: #000000;

JSON

{
  "hex": "#123b6c",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 108
  },
  "hsl": {
    "h": 212.667,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35274,
    "c": 0.09633,
    "h": 255.2
  },
  "luminance": 0.04339
}

Semantic roles & 50–950 ramp

primary

#123B6C

secondary

#A37236

accent

#9C3AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123B6C

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

Preview Lab → · Contrast checker → · Palette generator →