#3F84BC#3F84BC

#3F84BC is a mid, moderate cyan. Relative luminance 0.212; OKLCH L 59.4% C 0.111 H 245.7°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#3F84BC
RGB	rgb(63, 132, 188)
HSL	hsl(207, 50%, 49%)
HSV	hsv(207, 66%, 74%)
CMYK	cmyk(66.5%, 29.8%, 0%, 26.3%)
CIE-LAB	lab(53.15, -3.82, -35.72)
CIE-LCH	lch(53.15, 35.92, 263.90°)
OKLab	oklab(59.39% -0.0455 -0.1009)
OKLCH	oklch(59.39% 0.111 245.7)
XYZ	xyz(19.3748, 21.1881, 50.6358)
Luminance	0.2119 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F84BC #BC773F

analogous

#3FBCB6 #3F84BC #3F46BC

triadic

#3F84BC #BC3F84 #84BC3F

tetradic

#3F84BC #B63FBC #BC773F #46BC3F

square

#3F84BC #B63FBC #BC773F #46BC3F

split-complementary

#3F84BC #BC3F46 #BCB63F

monochromatic

#204460 #30648E #3F84BC #6BA1CD #99BEDD

Accessibility & contrast

On white

4.01

#3F84BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#3F84BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F84BC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F84BC	#FFFFFF	#000000	##000000
##3F84BC	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6B86BE

Deuteranopia (green-blind)

#5A7ABB

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f84bc;
/* rgb */ color: rgb(63, 132, 188);
/* oklch */ color: oklch(59.4% 0.111 245.7);

Tailwind

colors: {
  custom: {
    50: '#81a7d0',
    500: '#3f84bc',
    950: '#000000',
  },
}

SCSS

$custom: #3f84bc;
$custom-light: #81a7d0;
$custom-dark: #000000;

JSON

{
  "hex": "#3f84bc",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 188
  },
  "hsl": {
    "h": 206.88,
    "s": 49.801,
    "l": 49.216
  },
  "oklch": {
    "l": 0.5939,
    "c": 0.11066,
    "h": 245.7
  },
  "luminance": 0.2119
}

Semantic roles & 50–950 ramp

primary

#3F84BC

secondary

#C9A88E

accent

#8D4ED9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F84BC

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

Preview Lab → · Contrast checker → · Palette generator →