#3F759E#3F759E

#3F759E is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.3% C 0.086 H 243.3°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3F759E
RGB	rgb(63, 117, 158)
HSL	hsl(206, 43%, 43%)
HSV	hsv(206, 60%, 62%)
CMYK	cmyk(60.1%, 25.9%, 0%, 38%)
CIE-LAB	lab(47.30, -5.17, -27.49)
CIE-LCH	lch(47.30, 27.97, 259.35°)
OKLab	oklab(54.31% -0.0389 -0.0772)
OKLCH	oklch(54.31% 0.086 243.3)
XYZ	xyz(14.5805, 16.2466, 34.7087)
Luminance	0.1625 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F759E #9E683F

analogous

#3F9E97 #3F759E #3F459E

triadic

#3F759E #9E3F75 #759E3F

tetradic

#3F759E #973F9E #9E683F #459E3F

square

#3F759E #973F9E #9E683F #459E3F

split-complementary

#3F759E #9E3F45 #9E973F

monochromatic

#1C3446 #2E5572 #3F759E #5C94BE #88B1D0

Accessibility & contrast

On white

4.94

#3F759E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3F759E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F759E

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F759E	#FFFFFF	#000000	##FFFFFF
##3F759E	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#6375A0

Deuteranopia (green-blind)

#566C9D

Tritanopia (blue-blind)

#007F83

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f759e;
/* rgb */ color: rgb(63, 117, 158);
/* oklch */ color: oklch(54.3% 0.086 243.3);

Tailwind

colors: {
  custom: {
    50: '#7c9cbb',
    500: '#3f759e',
    950: '#000000',
  },
}

SCSS

$custom: #3f759e;
$custom-light: #7c9cbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f759e",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 158
  },
  "hsl": {
    "h": 205.895,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.54313,
    "c": 0.0864,
    "h": 243.3
  },
  "luminance": 0.16248
}

Semantic roles & 50–950 ramp

primary

#3F759E

secondary

#BA987F

accent

#8B55D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F759E

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

Preview Lab → · Contrast checker → · Palette generator →