#3F84BB#3F84BB

#3F84BB is a mid, moderate cyan. Relative luminance 0.211; OKLCH L 59.3% C 0.109 H 245.2°. Best body text is #000000 at 5.23:1 contrast (WCAG AA passes).

Color values

HEX	#3F84BB
RGB	rgb(63, 132, 187)
HSL	hsl(207, 50%, 49%)
HSV	hsv(207, 66%, 73%)
CMYK	cmyk(66.3%, 29.4%, 0%, 26.7%)
CIE-LAB	lab(53.11, -4.16, -35.22)
CIE-LCH	lch(53.11, 35.47, 263.26°)
OKLab	oklab(59.34% -0.0458 -0.0994)
OKLCH	oklch(59.34% 0.109 245.2)
XYZ	xyz(19.2674, 21.1452, 50.0701)
Luminance	0.2115 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F84BB #BB763F

analogous

#3FBBB4 #3F84BB #3F46BB

triadic

#3F84BB #BB3F84 #84BB3F

tetradic

#3F84BB #B43FBB #BB763F #46BB3F

square

#3F84BB #B43FBB #BB763F #46BB3F

split-complementary

#3F84BB #BB3F46 #BBB43F

monochromatic

#20435F #30648D #3F84BB #6AA1CD #98BEDC

Accessibility & contrast

On white

4.02

#3F84BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.23

#3F84BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F84BB

5.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F84BB	#FFFFFF	#000000	##000000
##3F84BB	1.00	4.02	5.23	5.23
#FFFFFF	4.02	1.00	21.00	21.00
#000000	5.23	21.00	1.00	1.00
##000000	5.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6C85BD

Deuteranopia (green-blind)

#5B79BA

Tritanopia (blue-blind)

#009197

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #3f84bb;
/* rgb */ color: rgb(63, 132, 187);
/* oklch */ color: oklch(59.3% 0.109 245.2);

Tailwind

colors: {
  custom: {
    50: '#81a7cf',
    500: '#3f84bb',
    950: '#000000',
  },
}

SCSS

$custom: #3f84bb;
$custom-light: #81a7cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f84bb",
  "rgb": {
    "r": 63,
    "g": 132,
    "b": 187
  },
  "hsl": {
    "h": 206.613,
    "s": 49.6,
    "l": 49.02
  },
  "oklch": {
    "l": 0.59338,
    "c": 0.10947,
    "h": 245.2
  },
  "luminance": 0.21147
}

Semantic roles & 50–950 ramp

primary

#3F84BB

secondary

#C8A88E

accent

#8C4FD9

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F84BB

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

Preview Lab → · Contrast checker → · Palette generator →