#123A6A#123A6A

#123A6A is a dark, moderate cyan. Relative luminance 0.042; OKLCH L 34.9% C 0.095 H 255.2°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX	#123A6A
RGB	rgb(18, 58, 106)
HSL	hsl(213, 71%, 24%)
HSV	hsv(213, 83%, 42%)
CMYK	cmyk(83%, 45.3%, 0%, 58.4%)
CIE-LAB	lab(24.31, 5.30, -31.96)
CIE-LCH	lch(24.31, 32.40, 279.41°)
OKLab	oklab(34.88% -0.0241 -0.0915)
OKLCH	oklch(34.88% 0.095 255.2)
XYZ	xyz(4.3631, 4.1948, 14.2126)
Luminance	0.0420 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A6A #6A4212

analogous

#12666A #123A6A #16126A

triadic

#123A6A #6A123A #3A6A12

tetradic

#123A6A #6A1266 #6A4212 #126A16

square

#123A6A #6A1266 #6A4212 #126A16

split-complementary

#123A6A #6A1612 #666A12

monochromatic

#040E1A #091D36 #123A6A #1B579E #2473D3

Accessibility & contrast

On white

11.42

#123A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.84

#123A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A6A

11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A6A	#FFFFFF	#000000	##FFFFFF
##123A6A	1.00	11.42	1.84	11.42
#FFFFFF	11.42	1.00	21.00	1.00
#000000	1.84	21.00	1.00	21.00
##FFFFFF	11.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223E6C

Deuteranopia (green-blind)

#113669

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123a6a;
/* rgb */ color: rgb(18, 58, 106);
/* oklch */ color: oklch(34.9% 0.095 255.2);

Tailwind

colors: {
  custom: {
    50: '#5f6f95',
    500: '#123a6a',
    950: '#000000',
  },
}

SCSS

$custom: #123a6a;
$custom-light: #5f6f95;
$custom-dark: #000000;

JSON

{
  "hex": "#123a6a",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 106
  },
  "hsl": {
    "h": 212.727,
    "s": 70.968,
    "l": 24.314
  },
  "oklch": {
    "l": 0.34877,
    "c": 0.09466,
    "h": 255.2
  },
  "luminance": 0.04195
}

Semantic roles & 50–950 ramp

primary

#123A6A

secondary

#A27136

accent

#9C3AEE

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123A6A

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

Preview Lab → · Contrast checker → · Palette generator →