#5599FB#5599FB

#5599FB is a light, vivid blue. Relative luminance 0.317; OKLCH L 68.4% C 0.161 H 257.7°. Best body text is #000000 at 7.34:1 contrast (WCAG AA passes).

Color values

HEX	#5599FB
RGB	rgb(85, 153, 251)
HSL	hsl(215, 95%, 66%)
HSV	hsv(215, 66%, 98%)
CMYK	cmyk(66.1%, 39%, 0%, 1.6%)
CIE-LAB	lab(63.07, 8.96, -55.21)
CIE-LCH	lch(63.07, 55.93, 279.22°)
OKLab	oklab(68.41% -0.0343 -0.1572)
OKLCH	oklch(68.41% 0.161 257.7)
XYZ	xyz(32.5439, 31.6755, 95.6470)
Luminance	0.3168 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#5599FB #FBB755

analogous

#55ECFB #5599FB #6455FB

triadic

#5599FB #FB5599 #99FB55

tetradic

#5599FB #FB55EC #FBB755 #55FB64

square

#5599FB #FB55EC #FBB755 #55FB64

split-complementary

#5599FB #FB6455 #ECFB55

monochromatic

#0558D1 #1975FA #5599FB #91BDFC #CDE1FE

Accessibility & contrast

On white

2.86

#5599FB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.34

#5599FB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #5599FB

7.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##5599FB	#FFFFFF	#000000	##000000
##5599FB	1.00	2.86	7.34	7.34
#FFFFFF	2.86	1.00	21.00	21.00
#000000	7.34	21.00	1.00	1.00
##000000	7.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6DA1FF

Deuteranopia (green-blind)

#5492F9

Tritanopia (blue-blind)

#00B0BE

Achromatopsia (no color)

#999999

Design tokens & code

CSS

--color: #5599fb;
/* rgb */ color: rgb(85, 153, 251);
/* oklch */ color: oklch(68.4% 0.161 257.7);

Tailwind

colors: {
  custom: {
    50: '#95b6fd',
    500: '#5599fb',
    950: '#000000',
  },
}

SCSS

$custom: #5599fb;
$custom-light: #95b6fd;
$custom-dark: #000000;

JSON

{
  "hex": "#5599fb",
  "rgb": {
    "r": 85,
    "g": 153,
    "b": 251
  },
  "hsl": {
    "h": 215.422,
    "s": 95.402,
    "l": 65.882
  },
  "oklch": {
    "l": 0.68408,
    "c": 0.16094,
    "h": 257.7
  },
  "luminance": 0.31679
}

Semantic roles & 50–950 ramp

primary

#5599FB

secondary

#F1DBBA

accent

#8700E6

background

#F9FBFF

surface

#F2F6FF

border

#CCD0D7

text

#0F1118

muted

#7E8086

Preview Lab

Preview with #5599FB

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

Preview Lab → · Contrast checker → · Palette generator →