#558BB1#558BB1

#558BB1 is a mid, moderate cyan. Relative luminance 0.236; OKLCH L 61.5% C 0.082 H 240.6°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#558BB1
RGB	rgb(85, 139, 177)
HSL	hsl(205, 37%, 51%)
HSV	hsv(205, 52%, 69%)
CMYK	cmyk(52%, 21.5%, 0%, 30.6%)
CIE-LAB	lab(55.65, -7.00, -25.47)
CIE-LCH	lch(55.65, 26.42, 254.62°)
OKLab	oklab(61.46% -0.0401 -0.071)
OKLCH	oklch(61.46% 0.082 240.6)
XYZ	xyz(20.9119, 23.5692, 45.0338)
Luminance	0.2357 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BB1 #B17B55

analogous

#55B1A9 #558BB1 #555DB1

triadic

#558BB1 #B1558B #8BB155

tetradic

#558BB1 #A955B1 #B17B55 #5DB155

square

#558BB1 #A955B1 #B17B55 #5DB155

split-complementary

#558BB1 #B1555D #B1A955

monochromatic

#2C4A60 #3F6B8A #558BB1 #7FA8C4 #A9C4D7

Accessibility & contrast

On white

3.68

#558BB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#558BB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BB1

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BB1	#FFFFFF	#000000	##000000
##558BB1	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB3

Deuteranopia (green-blind)

#6E81B0

Tritanopia (blue-blind)

#229498

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #558bb1;
/* rgb */ color: rgb(85, 139, 177);
/* oklch */ color: oklch(61.5% 0.082 240.6);

Tailwind

colors: {
  custom: {
    50: '#8bacc8',
    500: '#558bb1',
    950: '#000000',
  },
}

SCSS

$custom: #558bb1;
$custom-light: #8bacc8;
$custom-dark: #000000;

JSON

{
  "hex": "#558bb1",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 177
  },
  "hsl": {
    "h": 204.783,
    "s": 37.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.61458,
    "c": 0.08154,
    "h": 240.6
  },
  "luminance": 0.23571
}

Semantic roles & 50–950 ramp

primary

#558BB1

secondary

#C5AD9D

accent

#8A5BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558BB1

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

Preview Lab → · Contrast checker → · Palette generator →