#6599FF#6599FF

#6599FF is a light, vivid blue. Relative luminance 0.328; OKLCH L 69.4% C 0.160 H 262.6°. Best body text is #000000 at 7.55:1 contrast (WCAG AA passes).

Color values

HEX	#6599FF
RGB	rgb(101, 153, 255)
HSL	hsl(220, 100%, 70%)
HSV	hsv(220, 60%, 100%)
CMYK	cmyk(60.4%, 40%, 0%, 0%)
CIE-LAB	lab(63.97, 13.00, -55.93)
CIE-LCH	lch(63.97, 57.42, 283.09°)
OKLab	oklab(69.36% -0.0207 -0.1591)
OKLCH	oklch(69.36% 0.16 262.6)
XYZ	xyz(34.8018, 32.7661, 99.0788)
Luminance	0.3277 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#6599FF #FFCB65

analogous

#65E6FF #6599FF #7E65FF

triadic

#6599FF #FF6599 #99FF65

tetradic

#6599FF #FF65E6 #FFCB65 #65FF7E

square

#6599FF #FF65E6 #FFCB65 #65FF7E

split-complementary

#6599FF #FF7E65 #E6FF65

monochromatic

#004FEA #2870FF #6599FF #A2C2FF #DFEAFF

Accessibility & contrast

On white

2.78

#6599FF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.55

#6599FF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #6599FF

7.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##6599FF	#FFFFFF	#000000	##000000
##6599FF	1.00	2.78	7.55	7.55
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.55	21.00	1.00	1.00
##000000	7.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6CA3FF

Deuteranopia (green-blind)

#5694FD

Tritanopia (blue-blind)

#00B0C0

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #6599ff;
/* rgb */ color: rgb(101, 153, 255);
/* oklch */ color: oklch(69.4% 0.160 262.6);

Tailwind

colors: {
  custom: {
    50: '#9db6ff',
    500: '#6599ff',
    950: '#000000',
  },
}

SCSS

$custom: #6599ff;
$custom-light: #9db6ff;
$custom-dark: #000000;

JSON

{
  "hex": "#6599ff",
  "rgb": {
    "r": 101,
    "g": 153,
    "b": 255
  },
  "hsl": {
    "h": 219.74,
    "s": 100,
    "l": 69.804
  },
  "oklch": {
    "l": 0.69359,
    "c": 0.16044,
    "h": 262.6
  },
  "luminance": 0.32769
}

Semantic roles & 50–950 ramp

primary

#6599FF

secondary

#F6E7CA

accent

#9800E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #6599FF

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

Preview Lab → · Contrast checker → · Palette generator →