#3F7BC3#3F7BC3

#3F7BC3 is a mid, vivid cyan. Relative luminance 0.192; OKLCH L 57.7% C 0.128 H 254.4°. Best body text is #000000 at 4.83:1 contrast (WCAG AA passes).

Color values

HEX	#3F7BC3
RGB	rgb(63, 123, 195)
HSL	hsl(213, 52%, 51%)
HSV	hsv(213, 68%, 76%)
CMYK	cmyk(67.7%, 36.9%, 0%, 23.5%)
CIE-LAB	lab(50.87, 3.99, -43.32)
CIE-LCH	lch(50.87, 43.50, 275.27°)
OKLab	oklab(57.72% -0.0344 -0.1231)
OKLCH	oklch(57.72% 0.128 254.4)
XYZ	xyz(18.9796, 19.1609, 54.3173)
Luminance	0.1916 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7BC3 #C3873F

analogous

#3FBDC3 #3F7BC3 #453FC3

triadic

#3F7BC3 #C33F7B #7BC33F

tetradic

#3F7BC3 #C33FBD #C3873F #3FC345

square

#3F7BC3 #C33FBD #C3873F #3FC345

split-complementary

#3F7BC3 #C3453F #BDC33F

monochromatic

#204167 #2F5E96 #3F7BC3 #6E9BD2 #9CBBE0

Accessibility & contrast

On white

4.35

#3F7BC3 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.83

#3F7BC3 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7BC3

4.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7BC3	#FFFFFF	#000000	##000000
##3F7BC3	1.00	4.35	4.83	4.83
#FFFFFF	4.35	1.00	21.00	21.00
#000000	4.83	21.00	1.00	1.00
##000000	4.83	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B80C6

Deuteranopia (green-blind)

#4873C2

Tritanopia (blue-blind)

#008C96

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7bc3;
/* rgb */ color: rgb(63, 123, 195);
/* oklch */ color: oklch(57.7% 0.128 254.4);

Tailwind

colors: {
  custom: {
    50: '#82a0d5',
    500: '#3f7bc3',
    950: '#000000',
  },
}

SCSS

$custom: #3f7bc3;
$custom-light: #82a0d5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7bc3",
  "rgb": {
    "r": 63,
    "g": 123,
    "b": 195
  },
  "hsl": {
    "h": 212.727,
    "s": 52.381,
    "l": 50.588
  },
  "oklch": {
    "l": 0.57715,
    "c": 0.12785,
    "h": 254.4
  },
  "luminance": 0.19163
}

Semantic roles & 50–950 ramp

primary

#3F7BC3

secondary

#CCB292

accent

#9A4CDC

background

#F8F9FD

surface

#F0F2FA

border

#CBCCD3

text

#0C0E14

muted

#7D7E83

Preview Lab

Preview with #3F7BC3

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

Preview Lab → · Contrast checker → · Palette generator →