#123A6C#123A6C

#123A6C is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 35.0% C 0.098 H 256.0°. Best body text is #FFFFFF at 11.37:1 contrast (WCAG AA passes).

Color values

HEX	#123A6C
RGB	rgb(18, 58, 108)
HSL	hsl(213, 71%, 25%)
HSV	hsv(213, 83%, 42%)
CMYK	cmyk(83.3%, 46.3%, 0%, 57.6%)
CIE-LAB	lab(24.44, 6.15, -33.03)
CIE-LCH	lch(24.44, 33.60, 280.54°)
OKLab	oklab(35.03% -0.0237 -0.0947)
OKLCH	oklch(35.03% 0.098 256)
XYZ	xyz(4.4683, 4.2369, 14.7668)
Luminance	0.0424 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A6C #6C4412

analogous

#12676C #123A6C #17126C

triadic

#123A6C #6C123A #3A6C12

tetradic

#123A6C #6C1267 #6C4412 #126C17

square

#123A6C #6C1267 #6C4412 #126C17

split-complementary

#123A6C #6C1712 #676C12

monochromatic

#040E1A #091E38 #123A6C #1B56A0 #2372D5

Accessibility & contrast

On white

11.37

#123A6C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#123A6C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A6C

11.37:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A6C	#FFFFFF	#000000	##FFFFFF
##123A6C	1.00	11.37	1.85	11.37
#FFFFFF	11.37	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.37	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203E6E

Deuteranopia (green-blind)

#0E366B

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123a6c;
/* rgb */ color: rgb(18, 58, 108);
/* oklch */ color: oklch(35.0% 0.098 256.0);

Tailwind

colors: {
  custom: {
    50: '#606f96',
    500: '#123a6c',
    950: '#000000',
  },
}

SCSS

$custom: #123a6c;
$custom-light: #606f96;
$custom-dark: #000000;

JSON

{
  "hex": "#123a6c",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 108
  },
  "hsl": {
    "h": 213.333,
    "s": 71.429,
    "l": 24.706
  },
  "oklch": {
    "l": 0.35025,
    "c": 0.09759,
    "h": 256
  },
  "luminance": 0.04237
}

Semantic roles & 50–950 ramp

primary

#123A6C

secondary

#A37336

accent

#9E3AEE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123A6C

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

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