#3F89B7#3F89B7

#3F89B7 is a mid, moderate cyan. Relative luminance 0.224; OKLCH L 60.3% C 0.101 H 238.9°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#3F89B7
RGB	rgb(63, 137, 183)
HSL	hsl(203, 49%, 48%)
HSV	hsv(203, 66%, 72%)
CMYK	cmyk(65.6%, 25.1%, 0%, 28.2%)
CIE-LAB	lab(54.41, -8.41, -30.90)
CIE-LCH	lch(54.41, 32.02, 254.78°)
OKLab	oklab(60.31% -0.0524 -0.0868)
OKLCH	oklch(60.31% 0.101 238.9)
XYZ	xyz(19.5395, 22.3650, 48.0777)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F89B7 #B76D3F

analogous

#3FB7A9 #3F89B7 #3F4DB7

triadic

#3F89B7 #B73F89 #89B73F

tetradic

#3F89B7 #A93FB7 #B76D3F #4DB73F

square

#3F89B7 #A93FB7 #B76D3F #4DB73F

split-complementary

#3F89B7 #B73F4D #B7A93F

monochromatic

#20455C #2F6789 #3F89B7 #68A5CB #96C0DB

Accessibility & contrast

On white

3.84

#3F89B7 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#3F89B7 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F89B7

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F89B7	#FFFFFF	#000000	##000000
##3F89B7	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7489B9

Deuteranopia (green-blind)

#637DB6

Tritanopia (blue-blind)

#009599

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #3f89b7;
/* rgb */ color: rgb(63, 137, 183);
/* oklch */ color: oklch(60.3% 0.101 238.9);

Tailwind

colors: {
  custom: {
    50: '#80abcc',
    500: '#3f89b7',
    950: '#000000',
  },
}

SCSS

$custom: #3f89b7;
$custom-light: #80abcc;
$custom-dark: #000000;

JSON

{
  "hex": "#3f89b7",
  "rgb": {
    "r": 63,
    "g": 137,
    "b": 183
  },
  "hsl": {
    "h": 203,
    "s": 48.78,
    "l": 48.235
  },
  "oklch": {
    "l": 0.6031,
    "c": 0.10142,
    "h": 238.9
  },
  "luminance": 0.22367
}

Semantic roles & 50–950 ramp

primary

#3F89B7

secondary

#C6A28B

accent

#844FD8

background

#F8FAFC

surface

#EFF4F9

border

#CACED2

text

#0B1013

muted

#7C7F82

Preview Lab

Preview with #3F89B7

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

Preview Lab → · Contrast checker → · Palette generator →