#3F84B2#3F84B2

#3F84B2 is a mid, moderate cyan. Relative luminance 0.208; OKLCH L 58.9% C 0.099 H 240.5°. Best body text is #000000 at 5.15:1 contrast (WCAG AA passes).

Color values

HEX	#3F84B2
RGB	rgb(63, 132, 178)
HSL	hsl(204, 48%, 47%)
HSV	hsv(204, 65%, 70%)
CMYK	cmyk(64.6%, 25.8%, 0%, 30.2%)
CIE-LAB	lab(52.70, -7.22, -30.70)
CIE-LCH	lch(52.70, 31.54, 256.77°)
OKLab	oklab(58.88% -0.0487 -0.0863)
OKLCH	oklch(58.88% 0.099 240.5)
XYZ	xyz(18.3340, 20.7718, 45.1540)
Luminance	0.2077 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F84B2 #B26D3F

analogous

#3FB2A7 #3F84B2 #3F4BB2

triadic

#3F84B2 #B23F84 #84B23F

tetradic

#3F84B2 #A73FB2 #B26D3F #4BB23F

square

#3F84B2 #A73FB2 #B26D3F #4BB23F

split-complementary

#3F84B2 #B23F4B #B2A73F

monochromatic

#1F4158 #2F6285 #3F84B2 #66A1C9 #93BDD9

Accessibility & contrast

On white

4.07

#3F84B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.15

#3F84B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F84B2

5.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F84B2	#FFFFFF	#000000	##000000
##3F84B2	1.00	4.07	5.15	5.15
#FFFFFF	4.07	1.00	21.00	21.00
#000000	5.15	21.00	1.00	1.00
##000000	5.15	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F84B4

Deuteranopia (green-blind)

#5F79B1

Tritanopia (blue-blind)

#008F94

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #3f84b2;
/* rgb */ color: rgb(63, 132, 178);
/* oklch */ color: oklch(58.9% 0.099 240.5);

Tailwind

colors: {
  custom: {
    50: '#80a7c9',
    500: '#3f84b2',
    950: '#000000',
  },
}

SCSS

$custom: #3f84b2;
$custom-light: #80a7c9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f84b2",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 178
  },
  "hsl": {
    "h": 204,
    "s": 47.718,
    "l": 47.255
  },
  "oklch": {
    "l": 0.5888,
    "c": 0.09913,
    "h": 240.5
  },
  "luminance": 0.20774
}

Semantic roles & 50–950 ramp

primary

#3F84B2

secondary

#C4A089

accent

#8650D7

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #3F84B2

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

Preview Lab → · Contrast checker → · Palette generator →