#558DB1#558DB1

#558DB1 is a mid, moderate cyan. Relative luminance 0.242; OKLCH L 61.9% C 0.081 H 238.2°. Best body text is #000000 at 5.83:1 contrast (WCAG AA passes).

Color values

HEX	#558DB1
RGB	rgb(85, 141, 177)
HSL	hsl(203, 37%, 51%)
HSV	hsv(203, 52%, 69%)
CMYK	cmyk(52%, 20.3%, 0%, 30.6%)
CIE-LAB	lab(56.24, -8.14, -24.57)
CIE-LCH	lch(56.24, 25.88, 251.67°)
OKLab	oklab(61.92% -0.0425 -0.0684)
OKLCH	oklch(61.92% 0.081 238.2)
XYZ	xyz(21.2041, 24.1537, 45.1312)
Luminance	0.2415 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558DB1 #B17955

analogous

#55B1A7 #558DB1 #555FB1

triadic

#558DB1 #B1558D #8DB155

tetradic

#558DB1 #A755B1 #B17955 #5FB155

square

#558DB1 #A755B1 #B17955 #5FB155

split-complementary

#558DB1 #B1555F #B1A755

monochromatic

#2C4B60 #3F6C8A #558DB1 #7FA9C4 #A9C5D7

Accessibility & contrast

On white

3.60

#558DB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.83

#558DB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558DB1

5.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558DB1	#FFFFFF	#000000	##000000
##558DB1	1.00	3.60	5.83	5.83
#FFFFFF	3.60	1.00	21.00	21.00
#000000	5.83	21.00	1.00	1.00
##000000	5.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8CB3

Deuteranopia (green-blind)

#7083B0

Tritanopia (blue-blind)

#219699

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #558db1;
/* rgb */ color: rgb(85, 141, 177);
/* oklch */ color: oklch(61.9% 0.081 238.2);

Tailwind

colors: {
  custom: {
    50: '#8baec8',
    500: '#558db1',
    950: '#000000',
  },
}

SCSS

$custom: #558db1;
$custom-light: #8baec8;
$custom-dark: #000000;

JSON

{
  "hex": "#558db1",
  "rgb": {
    "r": 85,
    "g": 141,
    "b": 177
  },
  "hsl": {
    "h": 203.478,
    "s": 37.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.61923,
    "c": 0.08053,
    "h": 238.2
  },
  "luminance": 0.24155
}

Semantic roles & 50–950 ramp

primary

#558DB1

secondary

#C5AC9D

accent

#875BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558DB1

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

Preview Lab → · Contrast checker → · Palette generator →