#3D78CE#3D78CE

#3D78CE is a mid, vivid blue. Relative luminance 0.189; OKLCH L 57.6% C 0.146 H 258.0°. Best body text is #000000 at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3D78CE
RGB	rgb(61, 120, 206)
HSL	hsl(216, 60%, 52%)
HSV	hsv(216, 70%, 81%)
CMYK	cmyk(70.4%, 41.7%, 0%, 19.2%)
CIE-LAB	lab(50.55, 9.45, -50.12)
CIE-LCH	lch(50.55, 51.01, 280.68°)
OKLab	oklab(57.63% -0.0305 -0.1432)
OKLCH	oklch(57.63% 0.146 258)
XYZ	xyz(19.7775, 18.8792, 60.9823)
Luminance	0.1888 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D78CE #CE933D

analogous

#3DC1CE #3D78CE #4A3DCE

triadic

#3D78CE #CE3D78 #78CE3D

tetradic

#3D78CE #CE3DC1 #CE933D #3DCE4A

square

#3D78CE #CE3DC1 #CE933D #3DCE4A

split-complementary

#3D78CE #CE4A3D #C1CE3D

monochromatic

#1D4073 #295BA4 #3D78CE #6E9ADA #9FBCE7

Accessibility & contrast

On white

4.40

#3D78CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.78

#3D78CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D78CE

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D78CE	#FFFFFF	#000000	##000000
##3D78CE	1.00	4.40	4.78	4.78
#FFFFFF	4.40	1.00	21.00	21.00
#000000	4.78	21.00	1.00	1.00
##000000	4.78	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F80D1

Deuteranopia (green-blind)

#3772CC

Tritanopia (blue-blind)

#008C99

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #3d78ce;
/* rgb */ color: rgb(61, 120, 206);
/* oklch */ color: oklch(57.6% 0.146 258.0);

Tailwind

colors: {
  custom: {
    50: '#839edd',
    500: '#3d78ce',
    950: '#000000',
  },
}

SCSS

$custom: #3d78ce;
$custom-light: #839edd;
$custom-dark: #000000;

JSON

{
  "hex": "#3d78ce",
  "rgb": {
    "r": 61,
    "g": 120,
    "b": 206
  },
  "hsl": {
    "h": 215.586,
    "s": 59.671,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57634,
    "c": 0.14637,
    "h": 258
  },
  "luminance": 0.18881
}

Semantic roles & 50–950 ramp

primary

#3D78CE

secondary

#D3B994

accent

#A345E3

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #3D78CE

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

Preview Lab → · Contrast checker → · Palette generator →