#123A6D#123A6D

#123A6D is a dark, moderate cyan. Relative luminance 0.043; OKLCH L 35.1% C 0.099 H 256.3°. Best body text is #FFFFFF at 11.34:1 contrast (WCAG AA passes).

Color values

HEX	#123A6D
RGB	rgb(18, 58, 109)
HSL	hsl(214, 72%, 25%)
HSV	hsv(214, 83%, 43%)
CMYK	cmyk(83.5%, 46.8%, 0%, 57.3%)
CIE-LAB	lab(24.51, 6.57, -33.56)
CIE-LCH	lch(24.51, 34.20, 281.08°)
OKLab	oklab(35.1% -0.0235 -0.0962)
OKLCH	oklch(35.1% 0.099 256.3)
XYZ	xyz(4.5218, 4.2583, 15.0486)
Luminance	0.0426 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123A6D #6D4512

analogous

#12686D #123A6D #17126D

triadic

#123A6D #6D123A #3A6D12

tetradic

#123A6D #6D1268 #6D4512 #126D17

square

#123A6D #6D1268 #6D4512 #126D17

split-complementary

#123A6D #6D1712 #686D12

monochromatic

#040E1A #091E38 #123A6D #1B56A2 #2372D6

Accessibility & contrast

On white

11.34

#123A6D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.85

#123A6D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123A6D

11.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123A6D	#FFFFFF	#000000	##FFFFFF
##123A6D	1.00	11.34	1.85	11.34
#FFFFFF	11.34	1.00	21.00	1.00
#000000	1.85	21.00	1.00	21.00
##FFFFFF	11.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203F6F

Deuteranopia (green-blind)

#0C366C

Tritanopia (blue-blind)

#00464E

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #123a6d;
/* rgb */ color: rgb(18, 58, 109);
/* oklch */ color: oklch(35.1% 0.099 256.3);

Tailwind

colors: {
  custom: {
    50: '#606f97',
    500: '#123a6d',
    950: '#000000',
  },
}

SCSS

$custom: #123a6d;
$custom-light: #606f97;
$custom-dark: #000000;

JSON

{
  "hex": "#123a6d",
  "rgb": {
    "r": 18,
    "g": 58,
    "b": 109
  },
  "hsl": {
    "h": 213.626,
    "s": 71.654,
    "l": 24.902
  },
  "oklch": {
    "l": 0.35099,
    "c": 0.09906,
    "h": 256.3
  },
  "luminance": 0.04259
}

Semantic roles & 50–950 ramp

primary

#123A6D

secondary

#A47437

accent

#9F39EE

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#05070D

muted

#7A7A7E

Preview Lab

Preview with #123A6D

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

Preview Lab → · Contrast checker → · Palette generator →