#3F7CD4#3F7CD4

#3F7CD4 is a mid, vivid blue. Relative luminance 0.202; OKLCH L 59.0% C 0.149 H 257.8°. Best body text is #000000 at 5.05:1 contrast (WCAG AA passes).

Color values

HEX	#3F7CD4
RGB	rgb(63, 124, 212)
HSL	hsl(215, 63%, 54%)
HSV	hsv(215, 70%, 83%)
CMYK	cmyk(70.3%, 41.5%, 0%, 16.9%)
CIE-LAB	lab(52.09, 9.44, -51.06)
CIE-LCH	lch(52.09, 51.93, 280.47°)
OKLab	oklab(58.96% -0.0315 -0.1458)
OKLCH	oklch(58.96% 0.149 257.8)
XYZ	xyz(21.1369, 20.2233, 65.0641)
Luminance	0.2023 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F7CD4 #D4973F

analogous

#3FC7D4 #3F7CD4 #4D3FD4

triadic

#3F7CD4 #D43F7C #7CD43F

tetradic

#3F7CD4 #D43FC7 #D4973F #3FD44D

square

#3F7CD4 #D43FC7 #D4973F #3FD44D

split-complementary

#3F7CD4 #D44D3F #C7D43F

monochromatic

#1C447D #275FAF #3F7CD4 #719EDF #A3C0EA

Accessibility & contrast

On white

4.16

#3F7CD4 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.05

#3F7CD4 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3F7CD4

5.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F7CD4	#FFFFFF	#000000	##000000
##3F7CD4	1.00	4.16	5.05	5.05
#FFFFFF	4.16	1.00	21.00	21.00
#000000	5.05	21.00	1.00	1.00
##000000	5.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5284D7

Deuteranopia (green-blind)

#3A76D2

Tritanopia (blue-blind)

#00909E

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #3f7cd4;
/* rgb */ color: rgb(63, 124, 212);
/* oklch */ color: oklch(59.0% 0.149 257.8);

Tailwind

colors: {
  custom: {
    50: '#85a1e2',
    500: '#3f7cd4',
    950: '#000000',
  },
}

SCSS

$custom: #3f7cd4;
$custom-light: #85a1e2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f7cd4",
  "rgb": {
    "r": 63,
    "g": 124,
    "b": 212
  },
  "hsl": {
    "h": 215.436,
    "s": 63.404,
    "l": 53.922
  },
  "oklch": {
    "l": 0.58961,
    "c": 0.14919,
    "h": 257.8
  },
  "luminance": 0.20226
}

Semantic roles & 50–950 ramp

primary

#3F7CD4

secondary

#D7BD98

accent

#A341E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3F7CD4

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

Preview Lab → · Contrast checker → · Palette generator →