#558BB0#558BB0

#558BB0 is a mid, moderate cyan. Relative luminance 0.235; OKLCH L 61.4% C 0.080 H 239.8°. Best body text is #000000 at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#558BB0
RGB	rgb(85, 139, 176)
HSL	hsl(204, 37%, 51%)
HSV	hsv(204, 52%, 69%)
CMYK	cmyk(51.7%, 21%, 0%, 31%)
CIE-LAB	lab(55.61, -7.31, -24.96)
CIE-LCH	lch(55.61, 26.01, 253.68°)
OKLab	oklab(61.41% -0.0404 -0.0695)
OKLCH	oklch(61.41% 0.08 239.8)
XYZ	xyz(20.8126, 23.5295, 44.5108)
Luminance	0.2353 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558BB0 #B07A55

analogous

#55B0A7 #558BB0 #555DB0

triadic

#558BB0 #B0558B #8BB055

tetradic

#558BB0 #A755B0 #B07A55 #5DB055

square

#558BB0 #A755B0 #B07A55 #5DB055

split-complementary

#558BB0 #B0555D #B0A755

monochromatic

#2C4A5F #3F6B88 #558BB0 #7FA8C3 #A9C4D7

Accessibility & contrast

On white

3.68

#558BB0 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.71

#558BB0 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558BB0

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558BB0	#FFFFFF	#000000	##000000
##558BB0	1.00	3.68	5.71	5.71
#FFFFFF	3.68	1.00	21.00	21.00
#000000	5.71	21.00	1.00	1.00
##000000	5.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7B8BB2

Deuteranopia (green-blind)

#6E81AF

Tritanopia (blue-blind)

#239497

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #558bb0;
/* rgb */ color: rgb(85, 139, 176);
/* oklch */ color: oklch(61.4% 0.080 239.8);

Tailwind

colors: {
  custom: {
    50: '#8bacc7',
    500: '#558bb0',
    950: '#000000',
  },
}

SCSS

$custom: #558bb0;
$custom-light: #8bacc7;
$custom-dark: #000000;

JSON

{
  "hex": "#558bb0",
  "rgb": {
    "r": 85,
    "g": 139,
    "b": 176
  },
  "hsl": {
    "h": 204.396,
    "s": 36.546,
    "l": 51.176
  },
  "oklch": {
    "l": 0.61413,
    "c": 0.08045,
    "h": 239.8
  },
  "luminance": 0.23531
}

Semantic roles & 50–950 ramp

primary

#558BB0

secondary

#C5AD9C

accent

#895BCD

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558BB0

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

Preview Lab → · Contrast checker → · Palette generator →