#559AFB#559AFB

#559AFB is a light, vivid blue. Relative luminance 0.320; OKLCH L 68.6% C 0.160 H 257.3°. Best body text is #000000 at 7.40:1 contrast (WCAG AA passes).

Color values

HEX	#559AFB
RGB	rgb(85, 154, 251)
HSL	hsl(215, 95%, 66%)
HSV	hsv(215, 66%, 98%)
CMYK	cmyk(66.1%, 38.6%, 0%, 1.6%)
CIE-LAB	lab(63.35, 8.37, -54.78)
CIE-LCH	lch(63.35, 55.41, 278.69°)
OKLab	oklab(68.62% -0.0352 -0.156)
OKLCH	oklch(68.62% 0.16 257.3)
XYZ	xyz(32.7082, 32.0042, 95.7018)
Luminance	0.3201 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#559AFB #FBB655

analogous

#55EDFB #559AFB #6355FB

triadic

#559AFB #FB559A #9AFB55

tetradic

#559AFB #FB55ED #FBB655 #55FB63

square

#559AFB #FB55ED #FBB655 #55FB63

split-complementary

#559AFB #FB6355 #EDFB55

monochromatic

#055AD1 #1976FA #559AFB #91BEFC #CDE1FE

Accessibility & contrast

On white

2.84

#559AFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.40

#559AFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #559AFB

7.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##559AFB	#FFFFFF	#000000	##000000
##559AFB	1.00	2.84	7.40	7.40
#FFFFFF	2.84	1.00	21.00	21.00
#000000	7.40	21.00	1.00	1.00
##000000	7.40	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6EA2FF

Deuteranopia (green-blind)

#5592F9

Tritanopia (blue-blind)

#00B0BE

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #559afb;
/* rgb */ color: rgb(85, 154, 251);
/* oklch */ color: oklch(68.6% 0.160 257.3);

Tailwind

colors: {
  custom: {
    50: '#95b7fd',
    500: '#559afb',
    950: '#000000',
  },
}

SCSS

$custom: #559afb;
$custom-light: #95b7fd;
$custom-dark: #000000;

JSON

{
  "hex": "#559afb",
  "rgb": {
    "r": 85,
    "g": 154,
    "b": 251
  },
  "hsl": {
    "h": 215.06,
    "s": 95.402,
    "l": 65.882
  },
  "oklch": {
    "l": 0.6862,
    "c": 0.15989,
    "h": 257.3
  },
  "luminance": 0.32008
}

Semantic roles & 50–950 ramp

primary

#559AFB

secondary

#F1DBBA

accent

#8600E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1118

muted

#7E8086

Preview Lab

Preview with #559AFB

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

Preview Lab → · Contrast checker → · Palette generator →