#618CF3#618CF3

#618CF3 is a light, vivid blue. Relative luminance 0.278; OKLCH L 65.8% C 0.161 H 265.2°. Best body text is #000000 at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#618CF3
RGB	rgb(97, 140, 243)
HSL	hsl(222, 86%, 67%)
HSV	hsv(222, 60%, 95%)
CMYK	cmyk(60.1%, 42.4%, 0%, 4.7%)
CIE-LAB	lab(59.68, 16.05, -56.19)
CIE-LCH	lch(59.68, 58.44, 285.94°)
OKLab	oklab(65.79% -0.0134 -0.1601)
OKLCH	oklch(65.79% 0.161 265.2)
XYZ	xyz(30.4800, 27.7660, 88.5298)
Luminance	0.2777 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#618CF3 #F3C861

analogous

#61D5F3 #618CF3 #7F61F3

triadic

#618CF3 #F3618C #8CF361

tetradic

#618CF3 #F361D5 #F3C861 #61F37F

square

#618CF3 #F361D5 #F3C861 #61F37F

split-complementary

#618CF3 #F37F61 #D5F361

monochromatic

#0F46CA #2863EF #618CF3 #9AB5F7 #D3DFFC

Accessibility & contrast

On white

3.20

#618CF3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.55

#618CF3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #618CF3

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##618CF3	#FFFFFF	#000000	##000000
##618CF3	1.00	3.20	6.55	6.55
#FFFFFF	3.20	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)

#5D97F7

Deuteranopia (green-blind)

#488AF1

Tritanopia (blue-blind)

#00A3B4

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #618cf3;
/* rgb */ color: rgb(97, 140, 243);
/* oklch */ color: oklch(65.8% 0.161 265.2);

Tailwind

colors: {
  custom: {
    50: '#99adf7',
    500: '#618cf3',
    950: '#000000',
  },
}

SCSS

$custom: #618cf3;
$custom-light: #99adf7;
$custom-dark: #000000;

JSON

{
  "hex": "#618cf3",
  "rgb": {
    "r": 97,
    "g": 140,
    "b": 243
  },
  "hsl": {
    "h": 222.329,
    "s": 85.882,
    "l": 66.667
  },
  "oklch": {
    "l": 0.65787,
    "c": 0.16065,
    "h": 265.2
  },
  "luminance": 0.27769
}

Semantic roles & 50–950 ramp

primary

#618CF3

secondary

#EFE2C0

accent

#A103E2

background

#FAFAFF

surface

#F3F4FF

border

#CDCED7

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #618CF3

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

Preview Lab → · Contrast checker → · Palette generator →