#659CEF#659CEF

#659CEF is a light, vivid blue. Relative luminance 0.328; OKLCH L 69.1% C 0.136 H 258.4°. Best body text is #000000 at 7.56:1 contrast (WCAG AA passes).

Color values

HEX	#659CEF
RGB	rgb(101, 156, 239)
HSL	hsl(216, 81%, 67%)
HSV	hsv(216, 58%, 94%)
CMYK	cmyk(57.7%, 34.7%, 0%, 6.3%)
CIE-LAB	lab(63.98, 6.09, -47.16)
CIE-LCH	lch(63.98, 47.55, 277.36°)
OKLab	oklab(69.1% -0.0274 -0.1334)
OKLCH	oklch(69.1% 0.136 258.4)
XYZ	xyz(32.8298, 32.7728, 86.2403)
Luminance	0.3278 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#659CEF #EFB865

analogous

#65E1EF #659CEF #7365EF

triadic

#659CEF #EF659C #9CEF65

tetradic

#659CEF #EF65E1 #EFB865 #65EF73

square

#659CEF #EF65E1 #EFB865 #65EF73

split-complementary

#659CEF #EF7365 #E1EF65

monochromatic

#145BC5 #2E78E9 #659CEF #9CC0F5 #D4E3FB

Accessibility & contrast

On white

2.78

#659CEF on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.56

#659CEF on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #659CEF

7.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##659CEF	#FFFFFF	#000000	##000000
##659CEF	1.00	2.78	7.56	7.56
#FFFFFF	2.78	1.00	21.00	21.00
#000000	7.56	21.00	1.00	1.00
##000000	7.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7AA2F2

Deuteranopia (green-blind)

#6895ED

Tritanopia (blue-blind)

#00AFBA

Achromatopsia (no color)

#9B9B9B

Design tokens & code

CSS

--color: #659cef;
/* rgb */ color: rgb(101, 156, 239);
/* oklch */ color: oklch(69.1% 0.136 258.4);

Tailwind

colors: {
  custom: {
    50: '#9bb8f4',
    500: '#659cef',
    950: '#000000',
  },
}

SCSS

$custom: #659cef;
$custom-light: #9bb8f4;
$custom-dark: #000000;

JSON

{
  "hex": "#659cef",
  "rgb": {
    "r": 101,
    "g": 156,
    "b": 239
  },
  "hsl": {
    "h": 216.087,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.69101,
    "c": 0.13619,
    "h": 258.4
  },
  "luminance": 0.32776
}

Semantic roles & 50–950 ramp

primary

#659CEF

secondary

#EEDCC2

accent

#8808DE

background

#FAFBFE

surface

#F3F6FD

border

#CDD0D5

text

#0F1117

muted

#7F8085

Preview Lab

Preview with #659CEF

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

Preview Lab → · Contrast checker → · Palette generator →