#618CEF#618CEF

#618CEF is a light, vivid blue. Relative luminance 0.275; OKLCH L 65.5% C 0.155 H 264.8°. Best body text is #000000 at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#618CEF
RGB	rgb(97, 140, 239)
HSL	hsl(222, 82%, 66%)
HSV	hsv(222, 59%, 94%)
CMYK	cmyk(59.4%, 41.4%, 0%, 6.3%)
CIE-LAB	lab(59.46, 14.73, -54.33)
CIE-LCH	lch(59.46, 56.29, 285.17°)
OKLab	oklab(65.55% -0.0141 -0.1546)
OKLCH	oklch(65.55% 0.155 264.8)
XYZ	xyz(29.8825, 27.5270, 85.3831)
Luminance	0.2753 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#618CEF #EFC461

analogous

#61D3EF #618CEF #7D61EF

triadic

#618CEF #EF618C #8CEF61

tetradic

#618CEF #EF61D3 #EFC461 #61EF7D

square

#618CEF #EF61D3 #EFC461 #61EF7D

split-complementary

#618CEF #EF7D61 #D3EF61

monochromatic

#1448C2 #2964E9 #618CEF #99B4F5 #D0DDFA

Accessibility & contrast

On white

3.23

#618CEF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.51

#618CEF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #618CEF

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##618CEF	#FFFFFF	#000000	##000000
##618CEF	1.00	3.23	6.51	6.51
#FFFFFF	3.23	1.00	21.00	21.00
#000000	6.51	21.00	1.00	1.00
##000000	6.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6096F3

Deuteranopia (green-blind)

#4C89ED

Tritanopia (blue-blind)

#00A2B2

Achromatopsia (no color)

#8F8F8F

Design tokens & code

CSS

--color: #618cef;
/* rgb */ color: rgb(97, 140, 239);
/* oklch */ color: oklch(65.5% 0.155 264.8);

Tailwind

colors: {
  custom: {
    50: '#99adf5',
    500: '#618cef',
    950: '#000000',
  },
}

SCSS

$custom: #618cef;
$custom-light: #99adf5;
$custom-dark: #000000;

JSON

{
  "hex": "#618cef",
  "rgb": {
    "r": 97,
    "g": 140,
    "b": 239
  },
  "hsl": {
    "h": 221.831,
    "s": 81.609,
    "l": 65.882
  },
  "oklch": {
    "l": 0.65549,
    "c": 0.15526,
    "h": 264.8
  },
  "luminance": 0.2753
}

Semantic roles & 50–950 ramp

primary

#618CEF

secondary

#EDDFBE

accent

#9D08DE

background

#FAFAFF

surface

#F3F4FE

border

#CDCED6

text

#0F1017

muted

#7F7F85

Preview Lab

Preview with #618CEF

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

Preview Lab → · Contrast checker → · Palette generator →