#3F83E2#3F83E2

#3F83E2 is a mid, vivid cyan. Relative luminance 0.228; OKLCH L 61.4% C 0.160 H 257.4°. Best body text is #000000 at 5.56:1 contrast (WCAG AA passes).

Color values

HEX	#3F83E2
RGB	rgb(63, 131, 226)
HSL	hsl(215, 74%, 57%)
HSV	hsv(215, 72%, 89%)
CMYK	cmyk(72.1%, 42%, 0%, 11.4%)
CIE-LAB	lab(54.84, 10.18, -54.55)
CIE-LCH	lch(54.84, 55.49, 280.58°)
OKLab	oklab(61.35% -0.035 -0.1559)
OKLCH	oklch(61.35% 0.16 257.4)
XYZ	xyz(23.8887, 22.7777, 75.0743)
Luminance	0.2278 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F83E2 #E29E3F

analogous

#3FD5E2 #3F83E2 #4D3FE2

triadic

#3F83E2 #E23F83 #83E23F

tetradic

#3F83E2 #E23FD5 #E29E3F #3FE24D

square

#3F83E2 #E23FD5 #E29E3F #3FE24D

split-complementary

#3F83E2 #E24D3F #D5E23F

monochromatic

#164991 #1E64C6 #3F83E2 #74A5EA #A9C8F2

Accessibility & contrast

On white

3.78

#3F83E2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.56

#3F83E2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F83E2

5.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F83E2	#FFFFFF	#000000	##000000
##3F83E2	1.00	3.78	5.56	5.56
#FFFFFF	3.78	1.00	21.00	21.00
#000000	5.56	21.00	1.00	1.00
##000000	5.56	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#558BE6

Deuteranopia (green-blind)

#387CE0

Tritanopia (blue-blind)

#0099A7

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #3f83e2;
/* rgb */ color: rgb(63, 131, 226);
/* oklch */ color: oklch(61.4% 0.160 257.4);

Tailwind

colors: {
  custom: {
    50: '#88a6eb',
    500: '#3f83e2',
    950: '#000000',
  },
}

SCSS

$custom: #3f83e2;
$custom-light: #88a6eb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f83e2",
  "rgb": {
    "r": 63,
    "g": 131,
    "b": 226
  },
  "hsl": {
    "h": 214.969,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.61353,
    "c": 0.1598,
    "h": 257.4
  },
  "luminance": 0.2278
}

Semantic roles & 50–950 ramp

primary

#3F83E2

secondary

#E0C49D

accent

#A337F0

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #3F83E2

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

Preview Lab → · Contrast checker → · Palette generator →