#558CB1#558CB1

#558CB1 is a mid, moderate cyan. Relative luminance 0.239; OKLCH L 61.7% C 0.081 H 239.4°. Best body text is #000000 at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#558CB1
RGB	rgb(85, 140, 177)
HSL	hsl(204, 37%, 51%)
HSV	hsv(204, 52%, 69%)
CMYK	cmyk(52%, 20.9%, 0%, 30.6%)
CIE-LAB	lab(55.95, -7.57, -25.02)
CIE-LCH	lch(55.95, 26.14, 253.16°)
OKLab	oklab(61.69% -0.0413 -0.0697)
OKLCH	oklch(61.69% 0.081 239.4)
XYZ	xyz(21.0573, 23.8601, 45.0823)
Luminance	0.2386 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CB1 #B17A55

analogous

#55B1A8 #558CB1 #555EB1

triadic

#558CB1 #B1558C #8CB155

tetradic

#558CB1 #A855B1 #B17A55 #5EB155

square

#558CB1 #A855B1 #B17A55 #5EB155

split-complementary

#558CB1 #B1555E #B1A855

monochromatic

#2C4B60 #3F6C8A #558CB1 #7FA8C4 #A9C5D7

Accessibility & contrast

On white

3.64

#558CB1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.77

#558CB1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CB1

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CB1	#FFFFFF	#000000	##000000
##558CB1	1.00	3.64	5.77	5.77
#FFFFFF	3.64	1.00	21.00	21.00
#000000	5.77	21.00	1.00	1.00
##000000	5.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8CB3

Deuteranopia (green-blind)

#6F82B0

Tritanopia (blue-blind)

#219598

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558cb1;
/* rgb */ color: rgb(85, 140, 177);
/* oklch */ color: oklch(61.7% 0.081 239.4);

Tailwind

colors: {
  custom: {
    50: '#8badc8',
    500: '#558cb1',
    950: '#000000',
  },
}

SCSS

$custom: #558cb1;
$custom-light: #8badc8;
$custom-dark: #000000;

JSON

{
  "hex": "#558cb1",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 177
  },
  "hsl": {
    "h": 204.13,
    "s": 37.097,
    "l": 51.373
  },
  "oklch": {
    "l": 0.61691,
    "c": 0.08102,
    "h": 239.4
  },
  "luminance": 0.23862
}

Semantic roles & 50–950 ramp

primary

#558CB1

secondary

#C5AD9D

accent

#895BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558CB1

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

Preview Lab → · Contrast checker → · Palette generator →