#558BB4#558BB4

#558BB4 is a mid, moderate cyan. Relative luminance 0.237; OKLCH L 61.6% C 0.085 H 242.6°. Best body text is #000000 at 5.74:1 contrast (WCAG AA passes).

Color values

HEX	#558BB4
RGB	rgb(85, 139, 180)
HSL	hsl(206, 39%, 52%)
HSV	hsv(206, 53%, 71%)
CMYK	cmyk(52.8%, 22.8%, 0%, 29.4%)
CIE-LAB	lab(55.78, -6.08, -27.00)
CIE-LCH	lch(55.78, 27.67, 257.30°)
OKLab	oklab(61.6% -0.039 -0.0754)
OKLCH	oklch(61.6% 0.085 242.6)
XYZ	xyz(21.2142, 23.6901, 46.6259)
Luminance	0.2369 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BB4 #B47E55

analogous

#55B4AE #558BB4 #555BB4

triadic

#558BB4 #B4558B #8BB455

tetradic

#558BB4 #AE55B4 #B47E55 #5BB455

square

#558BB4 #AE55B4 #B47E55 #5BB455

split-complementary

#558BB4 #B4555B #B4AE55

monochromatic

#2C4B63 #3E6B8D #558BB4 #7FA8C7 #AAC5D9

Accessibility & contrast

On white

3.66

#558BB4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.74

#558BB4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BB4

5.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BB4	#FFFFFF	#000000	##000000
##558BB4	1.00	3.66	5.74	5.74
#FFFFFF	3.66	1.00	21.00	21.00
#000000	5.74	21.00	1.00	1.00
##000000	5.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#798BB6

Deuteranopia (green-blind)

#6D81B3

Tritanopia (blue-blind)

#1E9599

Achromatopsia (no color)

#868686

Design tokens & code

CSS

--color: #558bb4;
/* rgb */ color: rgb(85, 139, 180);
/* oklch */ color: oklch(61.6% 0.085 242.6);

Tailwind

colors: {
  custom: {
    50: '#8bacca',
    500: '#558bb4',
    950: '#000000',
  },
}

SCSS

$custom: #558bb4;
$custom-light: #8bacca;
$custom-dark: #000000;

JSON

{
  "hex": "#558bb4",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 180
  },
  "hsl": {
    "h": 205.895,
    "s": 38.776,
    "l": 51.961
  },
  "oklch": {
    "l": 0.61596,
    "c": 0.08488,
    "h": 242.6
  },
  "luminance": 0.23692
}

Semantic roles & 50–950 ramp

primary

#558BB4

secondary

#C7B09E

accent

#8C59CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558BB4

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

Preview Lab → · Contrast checker → · Palette generator →