#3F7AB3#3F7AB3

#3F7AB3 is a mid, moderate cyan. Relative luminance 0.182; OKLCH L 56.6% C 0.108 H 249.6°. Best body text is #000000 at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3F7AB3
RGB	rgb(63, 122, 179)
HSL	hsl(209, 48%, 47%)
HSV	hsv(209, 65%, 70%)
CMYK	cmyk(64.8%, 31.8%, 0%, 29.8%)
CIE-LAB	lab(49.77, -1.00, -35.85)
CIE-LCH	lch(49.77, 35.87, 268.40°)
OKLab	oklab(56.59% -0.0377 -0.1013)
OKLCH	oklch(56.59% 0.108 249.6)
XYZ	xyz(17.1431, 18.2288, 45.2541)
Luminance	0.1823 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7AB3 #B3783F

analogous

#3FB3B2 #3F7AB3 #3F40B3

triadic

#3F7AB3 #B33F7A #7AB33F

tetradic

#3F7AB3 #B23FB3 #B3783F #40B33F

square

#3F7AB3 #B23FB3 #B3783F #40B33F

split-complementary

#3F7AB3 #B33F40 #B3B23F

monochromatic

#1F3C58 #2F5B86 #3F7AB3 #6698C9 #93B7D9

Accessibility & contrast

On white

4.52

#3F7AB3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.65

#3F7AB3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7AB3

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7AB3	#FFFFFF	#000000	##000000
##3F7AB3	1.00	4.52	4.65	4.65
#FFFFFF	4.52	1.00	21.00	21.00
#000000	4.65	21.00	1.00	1.00
##000000	4.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617DB5

Deuteranopia (green-blind)

#5171B2

Tritanopia (blue-blind)

#00878E

Achromatopsia (no color)

#767676

Design tokens & code

CSS

--color: #3f7ab3;
/* rgb */ color: rgb(63, 122, 179);
/* oklch */ color: oklch(56.6% 0.108 249.6);

Tailwind

colors: {
  custom: {
    50: '#7fa0ca',
    500: '#3f7ab3',
    950: '#000000',
  },
}

SCSS

$custom: #3f7ab3;
$custom-light: #7fa0ca;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7ab3",
  "rgb": {
    "r": 63,
    "g": 122,
    "b": 179
  },
  "hsl": {
    "h": 209.483,
    "s": 47.934,
    "l": 47.451
  },
  "oklch": {
    "l": 0.56586,
    "c": 0.10815,
    "h": 249.6
  },
  "luminance": 0.18231
}

Semantic roles & 50–950 ramp

primary

#3F7AB3

secondary

#C4A689

accent

#9350D8

background

#F8F9FC

surface

#EFF2F8

border

#CACCD1

text

#0B0E13

muted

#7C7E82

Preview Lab

Preview with #3F7AB3

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

Preview Lab → · Contrast checker → · Palette generator →