#123C6F#123C6F

#123C6F is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.7% C 0.099 H 255.5°. Best body text is #FFFFFF at 11.04:1 contrast (WCAG AA passes).

Color values

HEX	#123C6F
RGB	rgb(18, 60, 111)
HSL	hsl(213, 72%, 25%)
HSV	hsv(213, 84%, 44%)
CMYK	cmyk(83.8%, 45.9%, 0%, 56.5%)
CIE-LAB	lab(25.28, 6.02, -33.60)
CIE-LCH	lch(25.28, 34.14, 280.15°)
OKLab	oklab(35.74% -0.0248 -0.0963)
OKLCH	oklch(35.74% 0.099 255.5)
XYZ	xyz(4.7335, 4.5074, 15.6564)
Luminance	0.0451 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123C6F #6F4512

analogous

#126A6F #123C6F #16126F

triadic

#123C6F #6F123C #3C6F12

tetradic

#123C6F #6F126A #6F4512 #126F16

square

#123C6F #6F126A #6F4512 #126F16

split-complementary

#123C6F #6F1612 #6A6F12

monochromatic

#040E1A #09203A #123C6F #1B58A4 #2375D8

Accessibility & contrast

On white

11.04

#123C6F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#123C6F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123C6F

11.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123C6F	#FFFFFF	#000000	##FFFFFF
##123C6F	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)

#224071

Deuteranopia (green-blind)

#0F386E

Tritanopia (blue-blind)

#004850

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #123c6f;
/* rgb */ color: rgb(18, 60, 111);
/* oklch */ color: oklch(35.7% 0.099 255.5);

Tailwind

colors: {
  custom: {
    50: '#617199',
    500: '#123c6f',
    950: '#000000',
  },
}

SCSS

$custom: #123c6f;
$custom-light: #617199;
$custom-dark: #000000;

JSON

{
  "hex": "#123c6f",
  "rgb": {
    "r": 18,
    "g": 60,
    "b": 111
  },
  "hsl": {
    "h": 212.903,
    "s": 72.093,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35744,
    "c": 0.09946,
    "h": 255.5
  },
  "luminance": 0.04508
}

Semantic roles & 50–950 ramp

primary

#123C6F

secondary

#A67437

accent

#9D39EF

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#06070E

muted

#7A7A7E

Preview Lab

Preview with #123C6F

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

Preview Lab → · Contrast checker → · Palette generator →