#6599F9#6599F9

#6599F9 is a light, vivid blue. Relative luminance 0.324; OKLCH L 69.0% C 0.153 H 261.7°. Best body text is #000000 at 7.48:1 contrast (WCAG AA passes).

Color values

HEX	#6599F9
RGB	rgb(101, 153, 249)
HSL	hsl(219, 93%, 69%)
HSV	hsv(219, 59%, 98%)
CMYK	cmyk(59.4%, 38.6%, 0%, 2.4%)
CIE-LAB	lab(63.66, 11.05, -53.14)
CIE-LCH	lch(63.66, 54.28, 281.75°)
OKLab	oklab(69.02% -0.022 -0.1509)
OKLCH	oklch(69.02% 0.153 261.7)
XYZ	xyz(33.8510, 32.3858, 94.0714)
Luminance	0.3239 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599F9 #F9C565

analogous

#65E3F9 #6599F9 #7B65F9

triadic

#6599F9 #F96599 #99F965

tetradic

#6599F9 #F965E3 #F9C565 #65F97B

square

#6599F9 #F965E3 #F9C565 #65F97B

split-complementary

#6599F9 #F97B65 #E3F965

monochromatic

#0953DB #2A72F7 #6599F9 #A0C0FB #DBE7FE

Accessibility & contrast

On white

2.81

#6599F9 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.48

#6599F9 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599F9

7.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599F9	#FFFFFF	#000000	##000000
##6599F9	1.00	2.81	7.48	7.48
#FFFFFF	2.81	1.00	21.00	21.00
#000000	7.48	21.00	1.00	1.00
##000000	7.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#70A2FD

Deuteranopia (green-blind)

#5C94F7

Tritanopia (blue-blind)

#00AFBD

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #6599f9;
/* rgb */ color: rgb(101, 153, 249);
/* oklch */ color: oklch(69.0% 0.153 261.7);

Tailwind

colors: {
  custom: {
    50: '#9cb6fc',
    500: '#6599f9',
    950: '#000000',
  },
}

SCSS

$custom: #6599f9;
$custom-light: #9cb6fc;
$custom-dark: #000000;

JSON

{
  "hex": "#6599f9",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 249
  },
  "hsl": {
    "h": 218.919,
    "s": 92.5,
    "l": 68.627
  },
  "oklch": {
    "l": 0.69018,
    "c": 0.15252,
    "h": 261.7
  },
  "luminance": 0.32389
}

Semantic roles & 50–950 ramp

primary

#6599F9

secondary

#F3E3C7

accent

#9500E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #6599F9

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

Preview Lab → · Contrast checker → · Palette generator →