#558BB3#558BB3

#558BB3 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.6% C 0.084 H 242.0°. Best body text is #000000 at 5.73:1 contrast (WCAG AA passes).

Color values

HEX	#558BB3
RGB	rgb(85, 139, 179)
HSL	hsl(206, 38%, 52%)
HSV	hsv(206, 53%, 70%)
CMYK	cmyk(52.5%, 22.3%, 0%, 29.8%)
CIE-LAB	lab(55.74, -6.39, -26.49)
CIE-LCH	lch(55.74, 27.25, 256.43°)
OKLab	oklab(61.55% -0.0394 -0.0739)
OKLCH	oklch(61.55% 0.084 242)
XYZ	xyz(21.1127, 23.6495, 46.0913)
Luminance	0.2365 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BB3 #B37D55

analogous

#55B3AC #558BB3 #555CB3

triadic

#558BB3 #B3558B #8BB355

tetradic

#558BB3 #AC55B3 #B37D55 #5CB355

square

#558BB3 #AC55B3 #B37D55 #5CB355

split-complementary

#558BB3 #B3555C #B3AC55

monochromatic

#2C4B62 #3F6B8C #558BB3 #7FA8C6 #AAC5D9

Accessibility & contrast

On white

3.66

#558BB3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.73

#558BB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BB3

5.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BB3	#FFFFFF	#000000	##000000
##558BB3	1.00	3.66	5.73	5.73
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.73	21.00	1.00	1.00
##000000	5.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7A8BB5

Deuteranopia (green-blind)

#6D81B2

Tritanopia (blue-blind)

#1F9598

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558bb3;
/* rgb */ color: rgb(85, 139, 179);
/* oklch */ color: oklch(61.6% 0.084 242.0);

Tailwind

colors: {
  custom: {
    50: '#8bacca',
    500: '#558bb3',
    950: '#000000',
  },
}

SCSS

$custom: #558bb3;
$custom-light: #8bacca;
$custom-dark: #000000;

JSON

{
  "hex": "#558bb3",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 179
  },
  "hsl": {
    "h": 205.532,
    "s": 38.211,
    "l": 51.765
  },
  "oklch": {
    "l": 0.6155,
    "c": 0.08376,
    "h": 242
  },
  "luminance": 0.23651
}

Semantic roles & 50–950 ramp

primary

#558BB3

secondary

#C7AF9D

accent

#8B5ACE

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558BB3

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

Preview Lab → · Contrast checker → · Palette generator →