#3F759A#3F759A

#3F759A is a mid, moderate cyan. Relative luminance 0.161; OKLCH L 54.1% C 0.082 H 240.5°. Best body text is #FFFFFF at 4.97:1 contrast (WCAG AA passes).

Color values

HEX	#3F759A
RGB	rgb(63, 117, 154)
HSL	hsl(204, 42%, 43%)
HSV	hsv(204, 59%, 60%)
CMYK	cmyk(59.1%, 24%, 0%, 39.6%)
CIE-LAB	lab(47.12, -6.50, -25.41)
CIE-LCH	lch(47.12, 26.23, 255.66°)
OKLab	oklab(54.12% -0.0403 -0.0712)
OKLCH	oklch(54.12% 0.082 240.5)
XYZ	xyz(14.2418, 16.1111, 32.9248)
Luminance	0.1611 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F759A #9A643F

analogous

#3F9A92 #3F759A #3F479A

triadic

#3F759A #9A3F75 #759A3F

tetradic

#3F759A #923F9A #9A643F #479A3F

square

#3F759A #923F9A #9A643F #479A3F

split-complementary

#3F759A #9A3F47 #9A923F

monochromatic

#1B3343 #2D546F #3F759A #5A94BC #86B0CD

Accessibility & contrast

On white

4.97

#3F759A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.22

#3F759A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F759A

4.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F759A	#FFFFFF	#000000	##FFFFFF
##3F759A	1.00	4.97	4.22	4.97
#FFFFFF	4.97	1.00	21.00	1.00
#000000	4.22	21.00	1.00	21.00
##FFFFFF	4.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#64759C

Deuteranopia (green-blind)

#586C99

Tritanopia (blue-blind)

#007E82

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f759a;
/* rgb */ color: rgb(63, 117, 154);
/* oklch */ color: oklch(54.1% 0.082 240.5);

Tailwind

colors: {
  custom: {
    50: '#7c9cb8',
    500: '#3f759a',
    950: '#000000',
  },
}

SCSS

$custom: #3f759a;
$custom-light: #7c9cb8;
$custom-dark: #000000;

JSON

{
  "hex": "#3f759a",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 154
  },
  "hsl": {
    "h": 204.396,
    "s": 41.935,
    "l": 42.549
  },
  "oklch": {
    "l": 0.54115,
    "c": 0.08177,
    "h": 240.5
  },
  "luminance": 0.16112
}

Semantic roles & 50–950 ramp

primary

#3F759A

secondary

#B8957D

accent

#8856D2

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F759A

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

Preview Lab → · Contrast checker → · Palette generator →