#659DFB#659DFB

#659DFB is a light, vivid blue. Relative luminance 0.338; OKLCH L 70.0% C 0.151 H 260.2°. Best body text is #000000 at 7.77:1 contrast (WCAG AA passes).

Color values

HEX	#659DFB
RGB	rgb(101, 157, 251)
HSL	hsl(218, 95%, 69%)
HSV	hsv(218, 60%, 98%)
CMYK	cmyk(59.8%, 37.5%, 0%, 1.6%)
CIE-LAB	lab(64.84, 9.36, -52.37)
CIE-LCH	lch(64.84, 53.20, 280.14°)
OKLab	oklab(69.96% -0.0256 -0.1486)
OKLCH	oklch(69.96% 0.151 260.2)
XYZ	xyz(34.8303, 33.8426, 95.9449)
Luminance	0.3385 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#659DFB #FBC365

analogous

#65E8FB #659DFB #7865FB

triadic

#659DFB #FB659D #9DFB65

tetradic

#659DFB #FB65E8 #FBC365 #65FB78

square

#659DFB #FB65E8 #FBC365 #65FB78

split-complementary

#659DFB #FB7865 #E8FB65

monochromatic

#0657E0 #2977F9 #659DFB #A1C3FD #DCE9FE

Accessibility & contrast

On white

2.70

#659DFB on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.77

#659DFB on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #659DFB

7.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##659DFB	#FFFFFF	#000000	##000000
##659DFB	1.00	2.70	7.77	7.77
#FFFFFF	2.70	1.00	21.00	21.00
#000000	7.77	21.00	1.00	1.00
##000000	7.77	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#75A5FF

Deuteranopia (green-blind)

#6097F9

Tritanopia (blue-blind)

#00B2C0

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #659dfb;
/* rgb */ color: rgb(101, 157, 251);
/* oklch */ color: oklch(70.0% 0.151 260.2);

Tailwind

colors: {
  custom: {
    50: '#9cb9fd',
    500: '#659dfb',
    950: '#000000',
  },
}

SCSS

$custom: #659dfb;
$custom-light: #9cb9fd;
$custom-dark: #000000;

JSON

{
  "hex": "#659dfb",
  "rgb": {
    "r": 101,
    "g": 157,
    "b": 251
  },
  "hsl": {
    "h": 217.6,
    "s": 94.937,
    "l": 69.02
  },
  "oklch": {
    "l": 0.69963,
    "c": 0.15082,
    "h": 260.2
  },
  "luminance": 0.33846
}

Semantic roles & 50–950 ramp

primary

#659DFB

secondary

#F4E3C8

accent

#9000E6

background

#FAFBFF

surface

#F4F6FF

border

#CED0D7

text

#0F1118

muted

#7F8086

Preview Lab

Preview with #659DFB

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

Preview Lab → · Contrast checker → · Palette generator →