#123D6A#123D6A

#123D6A is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.091 H 252.8°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#123D6A
RGB	rgb(18, 61, 106)
HSL	hsl(211, 71%, 24%)
HSV	hsv(211, 83%, 42%)
CMYK	cmyk(83%, 42.5%, 0%, 58.4%)
CIE-LAB	lab(25.28, 3.21, -30.41)
CIE-LCH	lch(25.28, 30.57, 276.02°)
OKLab	oklab(35.64% -0.027 -0.0869)
OKLCH	oklch(35.64% 0.091 252.8)
XYZ	xyz(4.5187, 4.5062, 14.2645)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123D6A #6A3F12

analogous

#12696A #123D6A #13126A

triadic

#123D6A #6A123D #3D6A12

tetradic

#123D6A #6A1269 #6A3F12 #126A13

square

#123D6A #6A1269 #6A3F12 #126A13

split-complementary

#123D6A #6A1312 #696A12

monochromatic

#040F1A #091F36 #123D6A #1B5B9E #2479D3

Accessibility & contrast

On white

11.04

#123D6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#123D6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123D6A

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123D6A	#FFFFFF	#000000	##FFFFFF
##123D6A	1.00	11.04	1.90	11.04
#FFFFFF	11.04	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#27406C

Deuteranopia (green-blind)

#193869

Tritanopia (blue-blind)

#00484E

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123d6a;
/* rgb */ color: rgb(18, 61, 106);
/* oklch */ color: oklch(35.6% 0.091 252.8);

Tailwind

colors: {
  custom: {
    50: '#5f7295',
    500: '#123d6a',
    950: '#000000',
  },
}

SCSS

$custom: #123d6a;
$custom-light: #5f7295;
$custom-dark: #000000;

JSON

{
  "hex": "#123d6a",
  "rgb": {
    "r": 18,
    "g": 61,
    "b": 106
  },
  "hsl": {
    "h": 210.682,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.35635,
    "c": 0.09098,
    "h": 252.8
  },
  "luminance": 0.04507
}

Semantic roles & 50–950 ramp

primary

#123D6A

secondary

#A26D36

accent

#963AEE

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123D6A

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

Preview Lab → · Contrast checker → · Palette generator →