#3F89CF#3F89CF

#3F89CF is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.6% C 0.129 H 249.6°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F89CF
RGB	rgb(63, 137, 207)
HSL	hsl(209, 60%, 53%)
HSV	hsv(209, 70%, 81%)
CMYK	cmyk(69.6%, 33.8%, 0%, 18.8%)
CIE-LAB	lab(55.53, -0.16, -42.77)
CIE-LCH	lch(55.53, 42.77, 269.78°)
OKLab	oklab(61.56% -0.045 -0.1213)
OKLCH	oklch(61.56% 0.129 249.6)
XYZ	xyz(22.2538, 23.4507, 62.3730)
Luminance	0.2345 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F89CF #CF853F

analogous

#3FCFCD #3F89CF #3F41CF

triadic

#3F89CF #CF3F89 #89CF3F

tetradic

#3F89CF #CD3FCF #CF853F #41CF3F

square

#3F89CF #CD3FCF #CF853F #41CF3F

split-complementary

#3F89CF #CF3F41 #CFCD3F

monochromatic

#1E4B76 #2A6AA7 #3F89CF #70A7DB #A1C5E7

Accessibility & contrast

On white

3.69

#3F89CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#3F89CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F89CF

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F89CF	#FFFFFF	#000000	##000000
##3F89CF	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8CD2

Deuteranopia (green-blind)

#557FCE

Tritanopia (blue-blind)

#009AA2

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #3f89cf;
/* rgb */ color: rgb(63, 137, 207);
/* oklch */ color: oklch(61.6% 0.129 249.6);

Tailwind

colors: {
  custom: {
    50: '#84abde',
    500: '#3f89cf',
    950: '#000000',
  },
}

SCSS

$custom: #3f89cf;
$custom-light: #84abde;
$custom-dark: #000000;

JSON

{
  "hex": "#3f89cf",
  "rgb": {
    "r": 63,
    "g": 137,
    "b": 207
  },
  "hsl": {
    "h": 209.167,
    "s": 60,
    "l": 52.941
  },
  "oklch": {
    "l": 0.61563,
    "c": 0.12942,
    "h": 249.6
  },
  "luminance": 0.23453
}

Semantic roles & 50–950 ramp

primary

#3F89CF

secondary

#D4B496

accent

#9245E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #3F89CF

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

Preview Lab → · Contrast checker → · Palette generator →