#3F7CBA#3F7CBA

#3F7CBA is a mid, moderate cyan. Relative luminance 0.190; OKLCH L 57.4% C 0.115 H 250.8°. Best body text is #000000 at 4.80:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CBA
RGB	rgb(63, 124, 186)
HSL	hsl(210, 49%, 49%)
HSV	hsv(210, 66%, 73%)
CMYK	cmyk(66.1%, 33.3%, 0%, 27.1%)
CIE-LAB	lab(50.71, 0.23, -38.42)
CIE-LCH	lch(50.71, 38.42, 270.34°)
OKLab	oklab(57.43% -0.0378 -0.1088)
OKLCH	oklch(57.43% 0.115 250.8)
XYZ	xyz(18.1172, 19.0154, 49.1604)
Luminance	0.1902 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CBA #BA7D3F

analogous

#3FBABA #3F7CBA #403FBA

triadic

#3F7CBA #BA3F7C #7CBA3F

tetradic

#3F7CBA #BA3FBA #BA7D3F #3FBA40

square

#3F7CBA #BA3FBA #BA7D3F #3FBA40

split-complementary

#3F7CBA #BA403F #BABA3F

monochromatic

#203F5F #305E8C #3F7CBA #6A9BCC #97B9DC

Accessibility & contrast

On white

4.37

#3F7CBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.80

#3F7CBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CBA

4.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CBA	#FFFFFF	#000000	##000000
##3F7CBA	1.00	4.37	4.80	4.80
#FFFFFF	4.37	1.00	21.00	21.00
#000000	4.80	21.00	1.00	1.00
##000000	4.80	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#617FBD

Deuteranopia (green-blind)

#5073B9

Tritanopia (blue-blind)

#008B92

Achromatopsia (no color)

#797979

Design tokens & code

CSS

--color: #3f7cba;
/* rgb */ color: rgb(63, 124, 186);
/* oklch */ color: oklch(57.4% 0.115 250.8);

Tailwind

colors: {
  custom: {
    50: '#81a1cf',
    500: '#3f7cba',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cba;
$custom-light: #81a1cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cba",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 186
  },
  "hsl": {
    "h": 210.244,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57432,
    "c": 0.1152,
    "h": 250.8
  },
  "luminance": 0.19017
}

Semantic roles & 50–950 ramp

primary

#3F7CBA

secondary

#C8AB8D

accent

#944FD9

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0E14

muted

#7C7E82

Preview Lab

Preview with #3F7CBA

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

Preview Lab → · Contrast checker → · Palette generator →