#123358#123358

#123358 is a dark, moderate cyan. Relative luminance 0.032; OKLCH L 31.8% C 0.077 H 253.5°. Best body text is #FFFFFF at 12.80:1 contrast (WCAG AA passes).

Color values

HEX	#123358
RGB	rgb(18, 51, 88)
HSL	hsl(212, 66%, 21%)
HSV	hsv(212, 80%, 35%)
CMYK	cmyk(79.5%, 42%, 0%, 65.5%)
CIE-LAB	lab(20.83, 2.60, -25.76)
CIE-LCH	lch(20.83, 25.89, 275.77°)
OKLab	oklab(31.79% -0.0217 -0.0735)
OKLCH	oklch(31.79% 0.077 253.5)
XYZ	xyz(3.1941, 3.2005, 9.6800)
Luminance	0.0320 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123358 #583712

analogous

#125658 #123358 #141258

triadic

#123358 #581233 #335812

tetradic

#123358 #581256 #583712 #125814

square

#123358 #581256 #583712 #125814

split-complementary

#123358 #581412 #565812

monochromatic

#050F19 #081625 #123358 #1C508B #276EBE

Accessibility & contrast

On white

12.80

#123358 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.64

#123358 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123358

12.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123358	#FFFFFF	#000000	##FFFFFF
##123358	1.00	12.80	1.64	12.80
#FFFFFF	12.80	1.00	21.00	1.00
#000000	1.64	21.00	1.00	21.00
##FFFFFF	12.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#223659

Deuteranopia (green-blind)

#172F57

Tritanopia (blue-blind)

#003C41

Achromatopsia (no color)

#323232

Design tokens & code

CSS

--color: #123358;
/* rgb */ color: rgb(18, 51, 88);
/* oklch */ color: oklch(31.8% 0.077 253.5);

Tailwind

colors: {
  custom: {
    50: '#5b6a87',
    500: '#123358',
    950: '#000000',
  },
}

SCSS

$custom: #123358;
$custom-light: #5b6a87;
$custom-dark: #000000;

JSON

{
  "hex": "#123358",
  "rgb": {
    "r": 18,
    "g": 51,
    "b": 88
  },
  "hsl": {
    "h": 211.714,
    "s": 66.038,
    "l": 20.784
  },
  "oklch": {
    "l": 0.31792,
    "c": 0.07661,
    "h": 253.5
  },
  "luminance": 0.03201
}

Semantic roles & 50–950 ramp

primary

#123358

secondary

#916635

accent

#993FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123358

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

Preview Lab → · Contrast checker → · Palette generator →