#3D78EE#3D78EE

#3D78EE is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.8% C 0.189 H 262.3°. Best body text is #000000 at 5.12:1 contrast (WCAG AA passes).

Color values

HEX	#3D78EE
RGB	rgb(61, 120, 238)
HSL	hsl(220, 84%, 59%)
HSV	hsv(220, 74%, 93%)
CMYK	cmyk(74.4%, 49.6%, 0%, 6.7%)
CIE-LAB	lab(52.50, 21.05, -65.01)
CIE-LCH	lch(52.50, 68.34, 287.94°)
OKLab	oklab(59.77% -0.0253 -0.1869)
OKLCH	oklch(59.77% 0.189 262.3)
XYZ	xyz(24.0680, 20.5954, 83.5792)
Luminance	0.2060 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3D78EE #EEB33D

analogous

#3DD0EE #3D78EE #5A3DEE

triadic

#3D78EE #EE3D78 #78EE3D

tetradic

#3D78EE #EE3DD0 #EEB33D #3DEE5A

square

#3D78EE #EE3DD0 #EEB33D #3DEE5A

split-complementary

#3D78EE #EE5A3D #D0EE3D

monochromatic

#0E40A2 #1356DB #3D78EE #759FF3 #AEC6F8

Accessibility & contrast

On white

4.10

#3D78EE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.12

#3D78EE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #3D78EE

5.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3D78EE	#FFFFFF	#000000	##000000
##3D78EE	1.00	4.10	5.12	5.12
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.12	21.00	1.00	1.00
##000000	5.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3086F2

Deuteranopia (green-blind)

#0076EC

Tritanopia (blue-blind)

#0094A8

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #3d78ee;
/* rgb */ color: rgb(61, 120, 238);
/* oklch */ color: oklch(59.8% 0.189 262.3);

Tailwind

colors: {
  custom: {
    50: '#8a9ef4',
    500: '#3d78ee',
    950: '#000000',
  },
}

SCSS

$custom: #3d78ee;
$custom-light: #8a9ef4;
$custom-dark: #000000;

JSON

{
  "hex": "#3d78ee",
  "rgb": {
    "r": 61,
    "g": 120,
    "b": 238
  },
  "hsl": {
    "h": 220,
    "s": 83.886,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59769,
    "c": 0.18864,
    "h": 262.3
  },
  "luminance": 0.20598
}

Semantic roles & 50–950 ramp

primary

#3D78EE

secondary

#E6CFA0

accent

#B62EFA

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #3D78EE

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

Preview Lab → · Contrast checker → · Palette generator →