#3F759F#3F759F

#3F759F is a mid, moderate cyan. Relative luminance 0.163; OKLCH L 54.4% C 0.088 H 243.9°. Best body text is #FFFFFF at 4.93:1 contrast (WCAG AA passes).

Color values

HEX	#3F759F
RGB	rgb(63, 117, 159)
HSL	hsl(206, 43%, 44%)
HSV	hsv(206, 60%, 62%)
CMYK	cmyk(60.4%, 26.4%, 0%, 37.6%)
CIE-LAB	lab(47.34, -4.84, -28.01)
CIE-LCH	lch(47.34, 28.42, 260.20°)
OKLab	oklab(54.36% -0.0385 -0.0786)
OKLCH	oklch(54.36% 0.088 243.9)
XYZ	xyz(14.6669, 16.2812, 35.1638)
Luminance	0.1628 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F759F #9F693F

analogous

#3F9F99 #3F759F #3F459F

triadic

#3F759F #9F3F75 #759F3F

tetradic

#3F759F #993F9F #9F693F #459F3F

square

#3F759F #993F9F #9F693F #459F3F

split-complementary

#3F759F #9F3F45 #9F993F

monochromatic

#1C3447 #2E5573 #3F759F #5D94BF #88B1D0

Accessibility & contrast

On white

4.93

#3F759F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.26

#3F759F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F759F

4.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F759F	#FFFFFF	#000000	##FFFFFF
##3F759F	1.00	4.93	4.26	4.93
#FFFFFF	4.93	1.00	21.00	1.00
#000000	4.26	21.00	1.00	21.00
##FFFFFF	4.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6376A1

Deuteranopia (green-blind)

#566C9E

Tritanopia (blue-blind)

#007F83

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f759f;
/* rgb */ color: rgb(63, 117, 159);
/* oklch */ color: oklch(54.4% 0.088 243.9);

Tailwind

colors: {
  custom: {
    50: '#7c9cbb',
    500: '#3f759f',
    950: '#000000',
  },
}

SCSS

$custom: #3f759f;
$custom-light: #7c9cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f759f",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 159
  },
  "hsl": {
    "h": 206.25,
    "s": 43.243,
    "l": 43.529
  },
  "oklch": {
    "l": 0.54363,
    "c": 0.08759,
    "h": 243.9
  },
  "luminance": 0.16283
}

Semantic roles & 50–950 ramp

primary

#3F759F

secondary

#BB997F

accent

#8C55D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E12

muted

#7C7E81

Preview Lab

Preview with #3F759F

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

Preview Lab → · Contrast checker → · Palette generator →