#3F7EBA#3F7EBA

#3F7EBA is a mid, moderate cyan. Relative luminance 0.195; OKLCH L 57.9% C 0.113 H 249.4°. Best body text is #000000 at 4.90:1 contrast (WCAG AA passes).

Color values

HEX	#3F7EBA
RGB	rgb(63, 126, 186)
HSL	hsl(209, 49%, 49%)
HSV	hsv(209, 66%, 73%)
CMYK	cmyk(66.1%, 32.3%, 0%, 27.1%)
CIE-LAB	lab(51.29, -0.96, -37.50)
CIE-LCH	lch(51.29, 37.51, 268.53°)
OKLab	oklab(57.89% -0.0399 -0.1061)
OKLCH	oklch(57.89% 0.113 249.4)
XYZ	xyz(18.3704, 19.5218, 49.2448)
Luminance	0.1952 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7EBA #BA7B3F

analogous

#3FBAB9 #3F7EBA #3F41BA

triadic

#3F7EBA #BA3F7E #7EBA3F

tetradic

#3F7EBA #B93FBA #BA7B3F #41BA3F

square

#3F7EBA #B93FBA #BA7B3F #41BA3F

split-complementary

#3F7EBA #BA3F41 #BAB93F

monochromatic

#20405F #305F8C #3F7EBA #6A9CCC #97BBDC

Accessibility & contrast

On white

4.28

#3F7EBA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.90

#3F7EBA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7EBA

4.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7EBA	#FFFFFF	#000000	##000000
##3F7EBA	1.00	4.28	4.90	4.90
#FFFFFF	4.28	1.00	21.00	21.00
#000000	4.90	21.00	1.00	1.00
##000000	4.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6481BD

Deuteranopia (green-blind)

#5375B9

Tritanopia (blue-blind)

#008C93

Achromatopsia (no color)

#7A7A7A

Design tokens & code

CSS

--color: #3f7eba;
/* rgb */ color: rgb(63, 126, 186);
/* oklch */ color: oklch(57.9% 0.113 249.4);

Tailwind

colors: {
  custom: {
    50: '#81a3cf',
    500: '#3f7eba',
    950: '#000000',
  },
}

SCSS

$custom: #3f7eba;
$custom-light: #81a3cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7eba",
  "rgb": {
    "r": 63,
    "g": 126,
    "b": 186
  },
  "hsl": {
    "h": 209.268,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.57892,
    "c": 0.11335,
    "h": 249.4
  },
  "luminance": 0.19524
}

Semantic roles & 50–950 ramp

primary

#3F7EBA

secondary

#C8AA8D

accent

#924FD9

background

#F8FAFC

surface

#EFF3F9

border

#CACDD2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #3F7EBA

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

Preview Lab → · Contrast checker → · Palette generator →