#658CEF#658CEF

#658CEF is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.8% C 0.154 H 266.1°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#658CEF
RGB	rgb(101, 140, 239)
HSL	hsl(223, 81%, 67%)
HSV	hsv(223, 58%, 94%)
CMYK	cmyk(57.7%, 41.4%, 0%, 6.3%)
CIE-LAB	lab(59.66, 15.50, -53.99)
CIE-LCH	lch(59.66, 56.17, 286.02°)
OKLab	oklab(65.76% -0.0105 -0.1536)
OKLCH	oklch(65.76% 0.154 266.1)
XYZ	xyz(30.3196, 27.7524, 85.4036)
Luminance	0.2776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#658CEF #EFC865

analogous

#65D1EF #658CEF #8365EF

triadic

#658CEF #EF658C #8CEF65

tetradic

#658CEF #EF65D1 #EFC865 #65EF83

square

#658CEF #EF65D1 #EFC865 #65EF83

split-complementary

#658CEF #EF8365 #D1EF65

monochromatic

#1446C5 #2E63E9 #658CEF #9CB5F5 #D4DFFB

Accessibility & contrast

On white

3.21

#658CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#658CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #658CEF

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##658CEF	#FFFFFF	#000000	##000000
##658CEF	1.00	3.21	6.55	6.55
#FFFFFF	3.21	1.00	21.00	21.00
#000000	6.55	21.00	1.00	1.00
##000000	6.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6196F3

Deuteranopia (green-blind)

#4E8AED

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #658cef;
/* rgb */ color: rgb(101, 140, 239);
/* oklch */ color: oklch(65.8% 0.154 266.1);

Tailwind

colors: {
  custom: {
    50: '#9badf5',
    500: '#658cef',
    950: '#000000',
  },
}

SCSS

$custom: #658cef;
$custom-light: #9badf5;
$custom-dark: #000000;

JSON

{
  "hex": "#658cef",
  "rgb": {
    "r": 101,
    "g": 140,
    "b": 239
  },
  "hsl": {
    "h": 223.043,
    "s": 81.176,
    "l": 66.667
  },
  "oklch": {
    "l": 0.65762,
    "c": 0.15392,
    "h": 266.1
  },
  "luminance": 0.27755
}

Semantic roles & 50–950 ramp

primary

#658CEF

secondary

#EEE2C2

accent

#A108DE

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #658CEF

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

Preview Lab → · Contrast checker → · Palette generator →