#123658#123658

#123658 is a dark, moderate cyan. Relative luminance 0.035; OKLCH L 32.6% C 0.073 H 250.0°. Best body text is #FFFFFF at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#123658
RGB	rgb(18, 54, 88)
HSL	hsl(209, 66%, 21%)
HSV	hsv(209, 80%, 35%)
CMYK	cmyk(79.5%, 38.6%, 0%, 65.5%)
CIE-LAB	lab(21.84, 0.50, -24.16)
CIE-LCH	lch(21.84, 24.17, 271.18°)
OKLab	oklab(32.58% -0.0249 -0.0687)
OKLCH	oklch(32.58% 0.073 250)
XYZ	xyz(3.3294, 3.4711, 9.7252)
Luminance	0.0347 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123658 #583412

analogous

#125857 #123658 #121358

triadic

#123658 #581236 #365812

tetradic

#123658 #571258 #583412 #135812

square

#123658 #571258 #583412 #135812

split-complementary

#123658 #581213 #585712

monochromatic

#051019 #081725 #123658 #1C558B #2774BE

Accessibility & contrast

On white

12.39

#123658 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.69

#123658 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123658

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123658	#FFFFFF	#000000	##FFFFFF
##123658	1.00	12.39	1.69	12.39
#FFFFFF	12.39	1.00	21.00	1.00
#000000	1.69	21.00	1.00	21.00
##FFFFFF	12.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#263859

Deuteranopia (green-blind)

#1C3157

Tritanopia (blue-blind)

#003E42

Achromatopsia (no color)

#343434

Design tokens & code

CSS

--color: #123658;
/* rgb */ color: rgb(18, 54, 88);
/* oklch */ color: oklch(32.6% 0.073 250.0);

Tailwind

colors: {
  custom: {
    50: '#5b6c87',
    500: '#123658',
    950: '#000000',
  },
}

SCSS

$custom: #123658;
$custom-light: #5b6c87;
$custom-dark: #000000;

JSON

{
  "hex": "#123658",
  "rgb": {
    "r": 18,
    "g": 54,
    "b": 88
  },
  "hsl": {
    "h": 209.143,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.32582,
    "c": 0.0731,
    "h": 250
  },
  "luminance": 0.03472
}

Semantic roles & 50–950 ramp

primary

#123658

secondary

#916235

accent

#913FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04070B

muted

#797A7C

Preview Lab

Preview with #123658

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

Preview Lab → · Contrast checker → · Palette generator →