#123557#123557

#123557 is a dark, moderate cyan. Relative luminance 0.034; OKLCH L 32.3% C 0.073 H 250.6°. Best body text is #FFFFFF at 12.56:1 contrast (WCAG AA passes).

Color values

HEX	#123557
RGB	rgb(18, 53, 87)
HSL	hsl(210, 66%, 21%)
HSV	hsv(210, 79%, 34%)
CMYK	cmyk(79.3%, 39.1%, 0%, 65.9%)
CIE-LAB	lab(21.44, 0.77, -24.13)
CIE-LCH	lch(21.44, 24.14, 271.83°)
OKLab	oklab(32.25% -0.0242 -0.0686)
OKLCH	oklch(32.25% 0.073 250.6)
XYZ	xyz(3.2422, 3.3626, 9.4931)
Luminance	0.0336 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#123557 #573412

analogous

#125756 #123557 #121357

triadic

#123557 #571235 #355712

tetradic

#123557 #561257 #573412 #135712

square

#123557 #561257 #573412 #135712

split-complementary

#123557 #571213 #575612

monochromatic

#050F19 #081624 #123557 #1C548A #2773BC

Accessibility & contrast

On white

12.56

#123557 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.67

#123557 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #123557

12.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##123557	#FFFFFF	#000000	##FFFFFF
##123557	1.00	12.56	1.67	12.56
#FFFFFF	12.56	1.00	21.00	1.00
#000000	1.67	21.00	1.00	21.00
##FFFFFF	12.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253758

Deuteranopia (green-blind)

#1B3156

Tritanopia (blue-blind)

#003D41

Achromatopsia (no color)

#333333

Design tokens & code

CSS

--color: #123557;
/* rgb */ color: rgb(18, 53, 87);
/* oklch */ color: oklch(32.3% 0.073 250.6);

Tailwind

colors: {
  custom: {
    50: '#5b6b86',
    500: '#123557',
    950: '#000000',
  },
}

SCSS

$custom: #123557;
$custom-light: #5b6b86;
$custom-dark: #000000;

JSON

{
  "hex": "#123557",
  "rgb": {
    "r": 18,
    "g": 53,
    "b": 87
  },
  "hsl": {
    "h": 209.565,
    "s": 65.714,
    "l": 20.588
  },
  "oklch": {
    "l": 0.3225,
    "c": 0.07278,
    "h": 250.6
  },
  "luminance": 0.03363
}

Semantic roles & 50–950 ramp

primary

#123557

secondary

#906235

accent

#933FE9

background

#F5F6F8

surface

#E9EBEF

border

#C5C6CA

text

#04060B

muted

#797A7C

Preview Lab

Preview with #123557

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

Preview Lab → · Contrast checker → · Palette generator →