#558CBB#558CBB

#558CBB is a light, moderate cyan. Relative luminance 0.243; OKLCH L 62.2% C 0.092 H 245.8°. Best body text is #000000 at 5.86:1 contrast (WCAG AA passes).

Color values

HEX	#558CBB
RGB	rgb(85, 140, 187)
HSL	hsl(208, 43%, 53%)
HSV	hsv(208, 55%, 73%)
CMYK	cmyk(54.5%, 25.1%, 0%, 26.7%)
CIE-LAB	lab(56.36, -4.48, -30.08)
CIE-LCH	lch(56.36, 30.41, 261.52°)
OKLab	oklab(62.15% -0.0379 -0.0842)
OKLCH	oklch(62.15% 0.092 245.8)
XYZ	xyz(22.0908, 24.2735, 50.5252)
Luminance	0.2427 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#558CBB #BB8455

analogous

#55BBB7 #558CBB #5559BB

triadic

#558CBB #BB558C #8CBB55

tetradic

#558CBB #B755BB #BB8455 #59BB55

square

#558CBB #B755BB #BB8455 #59BB55

split-complementary

#558CBB #BB5559 #BBB755

monochromatic

#2B4D6B #3C6D97 #558CBB #81AACC #ACC7DE

Accessibility & contrast

On white

3.59

#558CBB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.86

#558CBB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #558CBB

5.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##558CBB	#FFFFFF	#000000	##000000
##558CBB	1.00	3.59	5.86	5.86
#FFFFFF	3.59	1.00	21.00	21.00
#000000	5.86	21.00	1.00	1.00
##000000	5.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#788DBD

Deuteranopia (green-blind)

#6B83BA

Tritanopia (blue-blind)

#10979C

Achromatopsia (no color)

#878787

Design tokens & code

CSS

--color: #558cbb;
/* rgb */ color: rgb(85, 140, 187);
/* oklch */ color: oklch(62.2% 0.092 245.8);

Tailwind

colors: {
  custom: {
    50: '#8cadcf',
    500: '#558cbb',
    950: '#000000',
  },
}

SCSS

$custom: #558cbb;
$custom-light: #8cadcf;
$custom-dark: #000000;

JSON

{
  "hex": "#558cbb",
  "rgb": {
    "r": 85,
    "g": 140,
    "b": 187
  },
  "hsl": {
    "h": 207.647,
    "s": 42.857,
    "l": 53.333
  },
  "oklch": {
    "l": 0.62154,
    "c": 0.09234,
    "h": 245.8
  },
  "luminance": 0.24275
}

Semantic roles & 50–950 ramp

primary

#558CBB

secondary

#CCB4A0

accent

#8F55D3

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0D1014

muted

#7D7F82

Preview Lab

Preview with #558CBB

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

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