#123E6F#123E6F

#123E6F is a dark, moderate cyan. Relative luminance 0.047; OKLCH L 36.2% C 0.097 H 254.0°. Best body text is #FFFFFF at 10.80:1 contrast (WCAG AA passes).

Color values

HEX	#123E6F
RGB	rgb(18, 62, 111)
HSL	hsl(212, 72%, 25%)
HSV	hsv(212, 84%, 44%)
CMYK	cmyk(83.8%, 44.1%, 0%, 56.5%)
CIE-LAB	lab(25.92, 4.62, -32.57)
CIE-LCH	lch(25.92, 32.90, 278.07°)
OKLab	oklab(36.24% -0.0267 -0.0932)
OKLCH	oklch(36.24% 0.097 254)
XYZ	xyz(4.8402, 4.7210, 15.6920)
Luminance	0.0472 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123E6F #6F4312

analogous

#126C6F #123E6F #15126F

triadic

#123E6F #6F123E #3E6F12

tetradic

#123E6F #6F126C #6F4312 #126F15

square

#123E6F #6F126C #6F4312 #126F15

split-complementary

#123E6F #6F1512 #6C6F12

monochromatic

#040F1A #09213A #123E6F #1B5BA4 #2379D8

Accessibility & contrast

On white

10.80

#123E6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#123E6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123E6F

10.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123E6F	#FFFFFF	#000000	##FFFFFF
##123E6F	1.00	10.80	1.94	10.80
#FFFFFF	10.80	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#264271

Deuteranopia (green-blind)

#153A6E

Tritanopia (blue-blind)

#004A51

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #123e6f;
/* rgb */ color: rgb(18, 62, 111);
/* oklch */ color: oklch(36.2% 0.097 254.0);

Tailwind

colors: {
  custom: {
    50: '#617299',
    500: '#123e6f',
    950: '#000000',
  },
}

SCSS

$custom: #123e6f;
$custom-light: #617299;
$custom-dark: #000000;

JSON

{
  "hex": "#123e6f",
  "rgb": {
    "r": 18,
    "g": 62,
    "b": 111
  },
  "hsl": {
    "h": 211.613,
    "s": 72.093,
    "l": 25.294
  },
  "oklch": {
    "l": 0.36242,
    "c": 0.09698,
    "h": 254
  },
  "luminance": 0.04722
}

Semantic roles & 50–950 ramp

primary

#123E6F

secondary

#A67137

accent

#9939EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06080E

muted

#7A7B7E

Preview Lab

Preview with #123E6F

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

Preview Lab → · Contrast checker → · Palette generator →