#558EB5#558EB5

#558EB5 is a light, moderate cyan. Relative luminance 0.246; OKLCH L 62.3% C 0.084 H 239.9°. Best body text is #000000 at 5.92:1 contrast (WCAG AA passes).

Color values

HEX	#558EB5
RGB	rgb(85, 142, 181)
HSL	hsl(204, 39%, 52%)
HSV	hsv(204, 53%, 71%)
CMYK	cmyk(53%, 21.5%, 0%, 29%)
CIE-LAB	lab(56.70, -7.48, -26.15)
CIE-LCH	lch(56.70, 27.20, 254.03°)
OKLab	oklab(62.34% -0.0422 -0.0729)
OKLCH	oklch(62.34% 0.084 239.9)
XYZ	xyz(21.7568, 24.6117, 47.3111)
Luminance	0.2461 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558EB5 #B57C55

analogous

#55B5AC #558EB5 #555EB5

triadic

#558EB5 #B5558E #8EB555

tetradic

#558EB5 #AC55B5 #B57C55 #5EB555

square

#558EB5 #AC55B5 #B57C55 #5EB555

split-complementary

#558EB5 #B5555E #B5AC55

monochromatic

#2C4D64 #3E6E8F #558EB5 #80AAC8 #AAC7DA

Accessibility & contrast

On white

3.55

#558EB5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.92

#558EB5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558EB5

5.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558EB5	#FFFFFF	#000000	##000000
##558EB5	1.00	3.55	5.92	5.92
#FFFFFF	3.55	1.00	21.00	21.00
#000000	5.92	21.00	1.00	1.00
##000000	5.92	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7D8EB7

Deuteranopia (green-blind)

#7084B4

Tritanopia (blue-blind)

#1B989B

Achromatopsia (no color)

#888888

Design tokens & code

CSS

--color: #558eb5;
/* rgb */ color: rgb(85, 142, 181);
/* oklch */ color: oklch(62.3% 0.084 239.9);

Tailwind

colors: {
  custom: {
    50: '#8bafcb',
    500: '#558eb5',
    950: '#000000',
  },
}

SCSS

$custom: #558eb5;
$custom-light: #8bafcb;
$custom-dark: #000000;

JSON

{
  "hex": "#558eb5",
  "rgb": {
    "r": 85,
    "g": 142,
    "b": 181
  },
  "hsl": {
    "h": 204.375,
    "s": 39.344,
    "l": 52.157
  },
  "oklch": {
    "l": 0.62336,
    "c": 0.08429,
    "h": 239.9
  },
  "luminance": 0.24613
}

Semantic roles & 50–950 ramp

primary

#558EB5

secondary

#C8AF9E

accent

#8959CF

background

#F8FAFC

surface

#F0F4F8

border

#CBCED1

text

#0C1013

muted

#7D7F82

Preview Lab

Preview with #558EB5

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

Preview Lab → · Contrast checker → · Palette generator →