#558CB0#558CB0

#558CB0 is a mid, moderate cyan. Relative luminance 0.238; OKLCH L 61.6% C 0.080 H 238.6°. Best body text is #000000 at 5.76:1 contrast (WCAG AA passes).

Color values

HEX	#558CB0
RGB	rgb(85, 140, 176)
HSL	hsl(204, 37%, 51%)
HSV	hsv(204, 52%, 69%)
CMYK	cmyk(51.7%, 20.5%, 0%, 31%)
CIE-LAB	lab(55.91, -7.88, -24.51)
CIE-LCH	lch(55.91, 25.74, 252.18°)
OKLab	oklab(61.65% -0.0416 -0.0683)
OKLCH	oklch(61.65% 0.08 238.6)
XYZ	xyz(20.9580, 23.8204, 44.5592)
Luminance	0.2382 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CB0 #B07955

analogous

#55B0A6 #558CB0 #555EB0

triadic

#558CB0 #B0558C #8CB055

tetradic

#558CB0 #A655B0 #B07955 #5EB055

square

#558CB0 #A655B0 #B07955 #5EB055

split-complementary

#558CB0 #B0555E #B0A655

monochromatic

#2C4B5F #3F6C88 #558CB0 #7FA8C3 #A9C5D7

Accessibility & contrast

On white

3.64

#558CB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.76

#558CB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CB0

5.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CB0	#FFFFFF	#000000	##000000
##558CB0	1.00	3.64	5.76	5.76
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.76	21.00	1.00	1.00
##000000	5.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7C8BB2

Deuteranopia (green-blind)

#6F82AF

Tritanopia (blue-blind)

#229598

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558cb0;
/* rgb */ color: rgb(85, 140, 176);
/* oklch */ color: oklch(61.6% 0.080 238.6);

Tailwind

colors: {
  custom: {
    50: '#8badc7',
    500: '#558cb0',
    950: '#000000',
  },
}

SCSS

$custom: #558cb0;
$custom-light: #8badc7;
$custom-dark: #000000;

JSON

{
  "hex": "#558cb0",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 176
  },
  "hsl": {
    "h": 203.736,
    "s": 36.546,
    "l": 51.176
  },
  "oklch": {
    "l": 0.61646,
    "c": 0.07995,
    "h": 238.6
  },
  "luminance": 0.23822
}

Semantic roles & 50–950 ramp

primary

#558CB0

secondary

#C5AC9C

accent

#885BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558CB0

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

Preview Lab → · Contrast checker → · Palette generator →