#558FB3#558FB3

#558FB3 is a light, moderate cyan. Relative luminance 0.248; OKLCH L 62.5% C 0.082 H 237.3°. Best body text is #000000 at 5.97:1 contrast (WCAG AA passes).

Color values

HEX	#558FB3
RGB	rgb(85, 143, 179)
HSL	hsl(203, 38%, 52%)
HSV	hsv(203, 53%, 70%)
CMYK	cmyk(52.5%, 20.1%, 0%, 29.8%)
CIE-LAB	lab(56.91, -8.66, -24.68)
CIE-LCH	lch(56.91, 26.15, 250.67°)
OKLab	oklab(62.48% -0.0441 -0.0687)
OKLCH	oklch(62.48% 0.082 237.3)
XYZ	xyz(21.7025, 24.8291, 46.2879)
Luminance	0.2483 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558FB3 #B37955

analogous

#55B3A8 #558FB3 #5560B3

triadic

#558FB3 #B3558F #8FB355

tetradic

#558FB3 #A855B3 #B37955 #60B355

square

#558FB3 #A855B3 #B37955 #60B355

split-complementary

#558FB3 #B35560 #B3A855

monochromatic

#2C4D62 #3F6E8C #558FB3 #7FABC6 #AAC7D9

Accessibility & contrast

On white

3.52

#558FB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.97

#558FB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558FB3

5.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558FB3	#FFFFFF	#000000	##000000
##558FB3	1.00	3.52	5.97	5.97
#FFFFFF	3.52	1.00	21.00	21.00
#000000	5.97	21.00	1.00	1.00
##000000	5.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7F8EB5

Deuteranopia (green-blind)

#7284B2

Tritanopia (blue-blind)

#1D989B

Achromatopsia (no color)

#898989

Design tokens & code

CSS

--color: #558fb3;
/* rgb */ color: rgb(85, 143, 179);
/* oklch */ color: oklch(62.5% 0.082 237.3);

Tailwind

colors: {
  custom: {
    50: '#8bafc9',
    500: '#558fb3',
    950: '#000000',
  },
}

SCSS

$custom: #558fb3;
$custom-light: #8bafc9;
$custom-dark: #000000;

JSON

{
  "hex": "#558fb3",
  "rgb": {
    "r": 85,
    "g": 143,
    "b": 179
  },
  "hsl": {
    "h": 202.979,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62478,
    "c": 0.08169,
    "h": 237.3
  },
  "luminance": 0.24831
}

Semantic roles & 50–950 ramp

primary

#558FB3

secondary

#C7AD9D

accent

#865ACE

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558FB3

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

Preview Lab → · Contrast checker → · Palette generator →