#558CB5#558CB5

#558CB5 is a mid, moderate cyan. Relative luminance 0.240; OKLCH L 61.9% C 0.085 H 242.2°. Best body text is #000000 at 5.80:1 contrast (WCAG AA passes).

Color values

HEX	#558CB5
RGB	rgb(85, 140, 181)
HSL	hsl(206, 39%, 52%)
HSV	hsv(206, 53%, 71%)
CMYK	cmyk(53%, 22.7%, 0%, 29%)
CIE-LAB	lab(56.11, -6.35, -27.05)
CIE-LCH	lch(56.11, 27.79, 256.80°)
OKLab	oklab(61.87% -0.0399 -0.0755)
OKLCH	oklch(61.87% 0.085 242.2)
XYZ	xyz(21.4619, 24.0219, 47.2128)
Luminance	0.2402 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CB5 #B57E55

analogous

#55B5AE #558CB5 #555CB5

triadic

#558CB5 #B5558C #8CB555

tetradic

#558CB5 #AE55B5 #B57E55 #5CB555

square

#558CB5 #AE55B5 #B57E55 #5CB555

split-complementary

#558CB5 #B5555C #B5AE55

monochromatic

#2C4C64 #3E6C8F #558CB5 #80A9C8 #AAC6DA

Accessibility & contrast

On white

3.62

#558CB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.80

#558CB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CB5

5.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CB5	#FFFFFF	#000000	##000000
##558CB5	1.00	3.62	5.80	5.80
#FFFFFF	3.62	1.00	21.00	21.00
#000000	5.80	21.00	1.00	1.00
##000000	5.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8CB7

Deuteranopia (green-blind)

#6D82B4

Tritanopia (blue-blind)

#1C969A

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558cb5;
/* rgb */ color: rgb(85, 140, 181);
/* oklch */ color: oklch(61.9% 0.085 242.2);

Tailwind

colors: {
  custom: {
    50: '#8badcb',
    500: '#558cb5',
    950: '#000000',
  },
}

SCSS

$custom: #558cb5;
$custom-light: #8badcb;
$custom-dark: #000000;

JSON

{
  "hex": "#558cb5",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 181
  },
  "hsl": {
    "h": 205.625,
    "s": 39.344,
    "l": 52.157
  },
  "oklch": {
    "l": 0.61873,
    "c": 0.08541,
    "h": 242.2
  },
  "luminance": 0.24024
}

Semantic roles & 50–950 ramp

primary

#558CB5

secondary

#C8B09E

accent

#8B59CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558CB5

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

Preview Lab → · Contrast checker → · Palette generator →