#558BB5#558BB5

#558BB5 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.6% C 0.086 H 243.3°. Best body text is #000000 at 5.75:1 contrast (WCAG AA passes).

Color values

HEX	#558BB5
RGB	rgb(85, 139, 181)
HSL	hsl(206, 39%, 52%)
HSV	hsv(206, 53%, 71%)
CMYK	cmyk(53%, 23.2%, 0%, 29%)
CIE-LAB	lab(55.82, -5.78, -27.50)
CIE-LCH	lch(55.82, 28.10, 258.14°)
OKLab	oklab(61.64% -0.0387 -0.0768)
OKLCH	oklch(61.64% 0.086 243.3)
XYZ	xyz(21.3164, 23.7310, 47.1643)
Luminance	0.2373 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BB5 #B57F55

analogous

#55B5AF #558BB5 #555BB5

triadic

#558BB5 #B5558B #8BB555

tetradic

#558BB5 #AF55B5 #B57F55 #5BB555

square

#558BB5 #AF55B5 #B57F55 #5BB555

split-complementary

#558BB5 #B5555B #B5AF55

monochromatic

#2C4B64 #3E6B8F #558BB5 #80A8C8 #AAC5DA

Accessibility & contrast

On white

3.65

#558BB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.75

#558BB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BB5

5.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BB5	#FFFFFF	#000000	##000000
##558BB5	1.00	3.65	5.75	5.75
#FFFFFF	3.65	1.00	21.00	21.00
#000000	5.75	21.00	1.00	1.00
##000000	5.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798BB7

Deuteranopia (green-blind)

#6C81B4

Tritanopia (blue-blind)

#1C9599

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558bb5;
/* rgb */ color: rgb(85, 139, 181);
/* oklch */ color: oklch(61.6% 0.086 243.3);

Tailwind

colors: {
  custom: {
    50: '#8baccb',
    500: '#558bb5',
    950: '#000000',
  },
}

SCSS

$custom: #558bb5;
$custom-light: #8baccb;
$custom-dark: #000000;

JSON

{
  "hex": "#558bb5",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 181
  },
  "hsl": {
    "h": 206.25,
    "s": 39.344,
    "l": 52.157
  },
  "oklch": {
    "l": 0.61642,
    "c": 0.08603,
    "h": 243.3
  },
  "luminance": 0.23733
}

Semantic roles & 50–950 ramp

primary

#558BB5

secondary

#C8B09E

accent

#8C59CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558BB5

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

Preview Lab → · Contrast checker → · Palette generator →