#123B6A#123B6A

#123B6A is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.1% C 0.093 H 254.4°. Best body text is #FFFFFF at 11.29:1 contrast (WCAG AA passes).

Color values

HEX	#123B6A
RGB	rgb(18, 59, 106)
HSL	hsl(212, 71%, 24%)
HSV	hsv(212, 83%, 42%)
CMYK	cmyk(83%, 44.3%, 0%, 58.4%)
CIE-LAB	lab(24.63, 4.60, -31.44)
CIE-LCH	lch(24.63, 31.78, 278.32°)
OKLab	oklab(35.13% -0.0251 -0.09)
OKLCH	oklch(35.13% 0.093 254.4)
XYZ	xyz(4.4140, 4.2966, 14.2296)
Luminance	0.0430 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123B6A #6A4112

analogous

#12676A #123B6A #15126A

triadic

#123B6A #6A123B #3B6A12

tetradic

#123B6A #6A1267 #6A4112 #126A15

square

#123B6A #6A1267 #6A4112 #126A15

split-complementary

#123B6A #6A1512 #676A12

monochromatic

#040F1A #091E36 #123B6A #1B589E #2475D3

Accessibility & contrast

On white

11.29

#123B6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#123B6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123B6A

11.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123B6A	#FFFFFF	#000000	##FFFFFF
##123B6A	1.00	11.29	1.86	11.29
#FFFFFF	11.29	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243F6C

Deuteranopia (green-blind)

#143769

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123b6a;
/* rgb */ color: rgb(18, 59, 106);
/* oklch */ color: oklch(35.1% 0.093 254.4);

Tailwind

colors: {
  custom: {
    50: '#5f7095',
    500: '#123b6a',
    950: '#000000',
  },
}

SCSS

$custom: #123b6a;
$custom-light: #5f7095;
$custom-dark: #000000;

JSON

{
  "hex": "#123b6a",
  "rgb": {
    "r": 18,
    "g": 59,
    "b": 106
  },
  "hsl": {
    "h": 212.045,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35129,
    "c": 0.09341,
    "h": 254.4
  },
  "luminance": 0.04297
}

Semantic roles & 50–950 ramp

primary

#123B6A

secondary

#A27036

accent

#9A3AEE

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123B6A

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

Preview Lab → · Contrast checker → · Palette generator →