#618FF4#618FF4

#618FF4 is a light, vivid blue. Relative luminance 0.287; OKLCH L 66.5% C 0.159 H 264.1°. Best body text is #000000 at 6.74:1 contrast (WCAG AA passes).

Color values

HEX	#618FF4
RGB	rgb(97, 143, 244)
HSL	hsl(221, 87%, 67%)
HSV	hsv(221, 60%, 96%)
CMYK	cmyk(60.2%, 41.4%, 0%, 4.3%)
CIE-LAB	lab(60.53, 14.59, -55.38)
CIE-LCH	lch(60.53, 57.27, 284.75°)
OKLab	oklab(66.46% -0.0163 -0.1577)
OKLCH	oklch(66.46% 0.159 264.1)
XYZ	xyz(31.0757, 28.7153, 89.4754)
Luminance	0.2872 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#618FF4 #F4C661

analogous

#61D9F4 #618FF4 #7C61F4

triadic

#618FF4 #F4618F #8FF461

tetradic

#618FF4 #F461D9 #F4C661 #61F47C

square

#618FF4 #F461D9 #F4C661 #61F47C

split-complementary

#618FF4 #F47C61 #D9F461

monochromatic

#0E4ACC #2866F0 #618FF4 #9AB8F8 #D3E0FC

Accessibility & contrast

On white

3.11

#618FF4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.74

#618FF4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #618FF4

6.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##618FF4	#FFFFFF	#000000	##000000
##618FF4	1.00	3.11	6.74	6.74
#FFFFFF	3.11	1.00	21.00	21.00
#000000	6.74	21.00	1.00	1.00
##000000	6.74	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6299F8

Deuteranopia (green-blind)

#4D8CF2

Tritanopia (blue-blind)

#00A6B6

Achromatopsia (no color)

#929292

Design tokens & code

CSS

--color: #618ff4;
/* rgb */ color: rgb(97, 143, 244);
/* oklch */ color: oklch(66.5% 0.159 264.1);

Tailwind

colors: {
  custom: {
    50: '#99aff8',
    500: '#618ff4',
    950: '#000000',
  },
}

SCSS

$custom: #618ff4;
$custom-light: #99aff8;
$custom-dark: #000000;

JSON

{
  "hex": "#618ff4",
  "rgb": {
    "r": 97,
    "g": 143,
    "b": 244
  },
  "hsl": {
    "h": 221.224,
    "s": 86.982,
    "l": 66.863
  },
  "oklch": {
    "l": 0.66461,
    "c": 0.15852,
    "h": 264.1
  },
  "luminance": 0.28718
}

Semantic roles & 50–950 ramp

primary

#618FF4

secondary

#F0E1C1

accent

#9D02E4

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #618FF4

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

Preview Lab → · Contrast checker → · Palette generator →