#3F759D#3F759D

#3F759D is a mid, moderate cyan. Relative luminance 0.162; OKLCH L 54.3% C 0.085 H 242.6°. Best body text is #FFFFFF at 4.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F759D
RGB	rgb(63, 117, 157)
HSL	hsl(206, 43%, 43%)
HSV	hsv(206, 60%, 62%)
CMYK	cmyk(59.9%, 25.5%, 0%, 38.4%)
CIE-LAB	lab(47.25, -5.50, -26.97)
CIE-LCH	lch(47.25, 27.53, 258.47°)
OKLab	oklab(54.26% -0.0392 -0.0757)
OKLCH	oklch(54.26% 0.085 242.6)
XYZ	xyz(14.4947, 16.2123, 34.2572)
Luminance	0.1621 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F759D #9D673F

analogous

#3F9D96 #3F759D #3F469D

triadic

#3F759D #9D3F75 #759D3F

tetradic

#3F759D #963F9D #9D673F #469D3F

square

#3F759D #963F9D #9D673F #469D3F

split-complementary

#3F759D #9D3F46 #9D963F

monochromatic

#1C3446 #2D5471 #3F759D #5C94BD #87B1CF

Accessibility & contrast

On white

4.95

#3F759D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.24

#3F759D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F759D

4.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F759D	#FFFFFF	#000000	##FFFFFF
##3F759D	1.00	4.95	4.24	4.95
#FFFFFF	4.95	1.00	21.00	1.00
#000000	4.24	21.00	1.00	21.00
##FFFFFF	4.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#63759F

Deuteranopia (green-blind)

#576C9C

Tritanopia (blue-blind)

#007F83

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3f759d;
/* rgb */ color: rgb(63, 117, 157);
/* oklch */ color: oklch(54.3% 0.085 242.6);

Tailwind

colors: {
  custom: {
    50: '#7c9cba',
    500: '#3f759d',
    950: '#000000',
  },
}

SCSS

$custom: #3f759d;
$custom-light: #7c9cba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f759d",
  "rgb": {
    "r": 63,
    "g": 117,
    "b": 157
  },
  "hsl": {
    "h": 205.532,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.54263,
    "c": 0.08522,
    "h": 242.6
  },
  "luminance": 0.16214
}

Semantic roles & 50–950 ramp

primary

#3F759D

secondary

#BA977E

accent

#8B55D3

background

#F7F9FB

surface

#EEF2F6

border

#C9CCD0

text

#0A0E11

muted

#7C7E80

Preview Lab

Preview with #3F759D

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

Preview Lab → · Contrast checker → · Palette generator →