#3F759C#3F759C

#3F759C is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.2% C 0.084 H 241.9°. Best body text is #FFFFFF at 4.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F759C
RGB	rgb(63, 117, 156)
HSL	hsl(205, 42%, 43%)
HSV	hsv(205, 60%, 61%)
CMYK	cmyk(59.6%, 25%, 0%, 38.8%)
CIE-LAB	lab(47.21, -5.84, -26.45)
CIE-LCH	lch(47.21, 27.09, 257.56°)
OKLab	oklab(54.21% -0.0396 -0.0742)
OKLCH	oklch(54.21% 0.084 241.9)
XYZ	xyz(14.4097, 16.1783, 33.8094)
Luminance	0.1618 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F759C #9C663F

analogous

#3F9C94 #3F759C #3F469C

triadic

#3F759C #9C3F75 #759C3F

tetradic

#3F759C #943F9C #9C663F #469C3F

square

#3F759C #943F9C #9C663F #469C3F

split-complementary

#3F759C #9C3F46 #9C943F

monochromatic

#1C3445 #2D5470 #3F759C #5B94BD #87B0CE

Accessibility & contrast

On white

4.96

#3F759C on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3F759C on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F759C

4.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F759C	#FFFFFF	#000000	##FFFFFF
##3F759C	1.00	4.96	4.24	4.96
#FFFFFF	4.96	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64759E

Deuteranopia (green-blind)

#576C9B

Tritanopia (blue-blind)

#007F82

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f759c;
/* rgb */ color: rgb(63, 117, 156);
/* oklch */ color: oklch(54.2% 0.084 241.9);

Tailwind

colors: {
  custom: {
    50: '#7c9cb9',
    500: '#3f759c',
    950: '#000000',
  },
}

SCSS

$custom: #3f759c;
$custom-light: #7c9cb9;
$custom-dark: #000000;

JSON

{
  "hex": "#3f759c",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 156
  },
  "hsl": {
    "h": 205.161,
    "s": 42.466,
    "l": 42.941
  },
  "oklch": {
    "l": 0.54213,
    "c": 0.08406,
    "h": 241.9
  },
  "luminance": 0.1618
}

Semantic roles & 50–950 ramp

primary

#3F759C

secondary

#B9977E

accent

#8A56D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F759C

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

Preview Lab → · Contrast checker → · Palette generator →