#618FF1#618FF1

#618FF1 is a light, vivid blue. Relative luminance 0.285; OKLCH L 66.3% C 0.154 H 263.7°. Best body text is #000000 at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#618FF1
RGB	rgb(97, 143, 241)
HSL	hsl(221, 84%, 66%)
HSV	hsv(221, 60%, 95%)
CMYK	cmyk(59.8%, 40.7%, 0%, 5.5%)
CIE-LAB	lab(60.37, 13.60, -53.99)
CIE-LCH	lch(60.37, 55.67, 284.14°)
OKLab	oklab(66.29% -0.0168 -0.1536)
OKLCH	oklch(66.29% 0.155 263.7)
XYZ	xyz(30.6239, 28.5345, 87.0959)
Luminance	0.2854 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#618FF1 #F1C361

analogous

#61D7F1 #618FF1 #7B61F1

triadic

#618FF1 #F1618F #8FF161

tetradic

#618FF1 #F161D7 #F1C361 #61F17B

square

#618FF1 #F161D7 #F1C361 #61F17B

split-complementary

#618FF1 #F17B61 #D7F161

monochromatic

#124BC6 #2967EC #618FF1 #99B7F6 #D1DFFB

Accessibility & contrast

On white

3.13

#618FF1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.71

#618FF1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #618FF1

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##618FF1	#FFFFFF	#000000	##000000
##618FF1	1.00	3.13	6.71	6.71
#FFFFFF	3.13	1.00	21.00	21.00
#000000	6.71	21.00	1.00	1.00
##000000	6.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6499F5

Deuteranopia (green-blind)

#508BEF

Tritanopia (blue-blind)

#00A5B4

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #618ff1;
/* rgb */ color: rgb(97, 143, 241);
/* oklch */ color: oklch(66.3% 0.154 263.7);

Tailwind

colors: {
  custom: {
    50: '#99aff6',
    500: '#618ff1',
    950: '#000000',
  },
}

SCSS

$custom: #618ff1;
$custom-light: #99aff6;
$custom-dark: #000000;

JSON

{
  "hex": "#618ff1",
  "rgb": {
    "r": 97,
    "g": 143,
    "b": 241
  },
  "hsl": {
    "h": 220.833,
    "s": 83.721,
    "l": 66.275
  },
  "oklch": {
    "l": 0.66285,
    "c": 0.1545,
    "h": 263.7
  },
  "luminance": 0.28537
}

Semantic roles & 50–950 ramp

primary

#618FF1

secondary

#EEDFBF

accent

#9A05E0

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #618FF1

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

Preview Lab → · Contrast checker → · Palette generator →