#3D78CC#3D78CC

#3D78CC is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.5% C 0.144 H 257.6°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3D78CC
RGB	rgb(61, 120, 204)
HSL	hsl(215, 58%, 52%)
HSV	hsv(215, 70%, 80%)
CMYK	cmyk(70.1%, 41.2%, 0%, 20%)
CIE-LAB	lab(50.43, 8.73, -49.17)
CIE-LCH	lch(50.43, 49.94, 280.07°)
OKLab	oklab(57.51% -0.0309 -0.1403)
OKLCH	oklch(57.51% 0.144 257.6)
XYZ	xyz(19.5361, 18.7826, 59.7109)
Luminance	0.1878 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D78CC #CC913D

analogous

#3DBFCC #3D78CC #4A3DCC

triadic

#3D78CC #CC3D78 #78CC3D

tetradic

#3D78CC #CC3DBF #CC913D #3DCC4A

square

#3D78CC #CC3DBF #CC913D #3DCC4A

split-complementary

#3D78CC #CC4A3D #BFCC3D

monochromatic

#1E4071 #2A5CA1 #3D78CC #6D9AD9 #9EBBE5

Accessibility & contrast

On white

4.41

#3D78CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#3D78CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D78CC

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D78CC	#FFFFFF	#000000	##000000
##3D78CC	1.00	4.41	4.76	4.76
#FFFFFF	4.41	1.00	21.00	21.00
#000000	4.76	21.00	1.00	1.00
##000000	4.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#507FCF

Deuteranopia (green-blind)

#3972CA

Tritanopia (blue-blind)

#008C98

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3d78cc;
/* rgb */ color: rgb(61, 120, 204);
/* oklch */ color: oklch(57.5% 0.144 257.6);

Tailwind

colors: {
  custom: {
    50: '#839edc',
    500: '#3d78cc',
    950: '#000000',
  },
}

SCSS

$custom: #3d78cc;
$custom-light: #839edc;
$custom-dark: #000000;

JSON

{
  "hex": "#3d78cc",
  "rgb": {
    "r": 61,
    "g": 120,
    "b": 204
  },
  "hsl": {
    "h": 215.245,
    "s": 58.367,
    "l": 51.961
  },
  "oklch": {
    "l": 0.57509,
    "c": 0.14371,
    "h": 257.6
  },
  "luminance": 0.18785
}

Semantic roles & 50–950 ramp

primary

#3D78CC

secondary

#D2B893

accent

#A146E2

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3D78CC

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

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