#6599FD#6599FD

#6599FD is a light, vivid blue. Relative luminance 0.326; OKLCH L 69.2% C 0.158 H 262.3°. Best body text is #000000 at 7.53:1 contrast (WCAG AA passes).

Color values

HEX	#6599FD
RGB	rgb(101, 153, 253)
HSL	hsl(219, 97%, 69%)
HSV	hsv(219, 60%, 99%)
CMYK	cmyk(60.1%, 39.5%, 0%, 0.8%)
CIE-LAB	lab(63.87, 12.35, -55.00)
CIE-LCH	lch(63.87, 56.37, 282.66°)
OKLab	oklab(69.25% -0.0211 -0.1564)
OKLCH	oklch(69.25% 0.158 262.3)
XYZ	xyz(34.4815, 32.6380, 97.3921)
Luminance	0.3264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599FD #FDC965

analogous

#65E5FD #6599FD #7D65FD

triadic

#6599FD #FD6599 #99FD65

tetradic

#6599FD #FD65E5 #FDC965 #65FD7D

square

#6599FD #FD65E5 #FDC965 #65FD7D

split-complementary

#6599FD #FD7D65 #E5FD65

monochromatic

#0350E5 #2971FC #6599FD #A1C1FE #DEE9FF

Accessibility & contrast

On white

2.79

#6599FD on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.53

#6599FD on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599FD

7.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599FD	#FFFFFF	#000000	##000000
##6599FD	1.00	2.79	7.53	7.53
#FFFFFF	2.79	1.00	21.00	21.00
#000000	7.53	21.00	1.00	1.00
##000000	7.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6DA2FF

Deuteranopia (green-blind)

#5894FB

Tritanopia (blue-blind)

#00AFBF

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #6599fd;
/* rgb */ color: rgb(101, 153, 253);
/* oklch */ color: oklch(69.2% 0.158 262.3);

Tailwind

colors: {
  custom: {
    50: '#9db6fe',
    500: '#6599fd',
    950: '#000000',
  },
}

SCSS

$custom: #6599fd;
$custom-light: #9db6fe;
$custom-dark: #000000;

JSON

{
  "hex": "#6599fd",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 253
  },
  "hsl": {
    "h": 219.474,
    "s": 97.436,
    "l": 69.412
  },
  "oklch": {
    "l": 0.69245,
    "c": 0.15779,
    "h": 262.3
  },
  "luminance": 0.32641
}

Semantic roles & 50–950 ramp

primary

#6599FD

secondary

#F5E6C9

accent

#9700E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #6599FD

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

Preview Lab → · Contrast checker → · Palette generator →