#558EB3#558EB3

#558EB3 is a light, moderate cyan. Relative luminance 0.245; OKLCH L 62.2% C 0.082 H 238.5°. Best body text is #000000 at 5.91:1 contrast (WCAG AA passes).

Color values

HEX	#558EB3
RGB	rgb(85, 142, 179)
HSL	hsl(204, 38%, 52%)
HSV	hsv(204, 53%, 70%)
CMYK	cmyk(52.5%, 20.7%, 0%, 29.8%)
CIE-LAB	lab(56.61, -8.09, -25.13)
CIE-LCH	lch(56.61, 26.40, 252.15°)
OKLab	oklab(62.25% -0.0429 -0.07)
OKLCH	oklch(62.25% 0.082 238.5)
XYZ	xyz(21.5530, 24.5302, 46.2381)
Luminance	0.2453 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EB3 #B37A55

analogous

#55B3A9 #558EB3 #555FB3

triadic

#558EB3 #B3558E #8EB355

tetradic

#558EB3 #A955B3 #B37A55 #5FB355

square

#558EB3 #A955B3 #B37A55 #5FB355

split-complementary

#558EB3 #B3555F #B3A955

monochromatic

#2C4D62 #3F6E8C #558EB3 #7FAAC6 #AAC6D9

Accessibility & contrast

On white

3.56

#558EB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.91

#558EB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EB3

5.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EB3	#FFFFFF	#000000	##000000
##558EB3	1.00	3.56	5.91	5.91
#FFFFFF	3.56	1.00	21.00	21.00
#000000	5.91	21.00	1.00	1.00
##000000	5.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8DB5

Deuteranopia (green-blind)

#7083B2

Tritanopia (blue-blind)

#1E979A

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #558eb3;
/* rgb */ color: rgb(85, 142, 179);
/* oklch */ color: oklch(62.2% 0.082 238.5);

Tailwind

colors: {
  custom: {
    50: '#8bafc9',
    500: '#558eb3',
    950: '#000000',
  },
}

SCSS

$custom: #558eb3;
$custom-light: #8bafc9;
$custom-dark: #000000;

JSON

{
  "hex": "#558eb3",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 179
  },
  "hsl": {
    "h": 203.617,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.62246,
    "c": 0.08215,
    "h": 238.5
  },
  "luminance": 0.24532
}

Semantic roles & 50–950 ramp

primary

#558EB3

secondary

#C7AE9D

accent

#885ACE

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558EB3

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

Preview Lab → · Contrast checker → · Palette generator →