#4078ED#4078ED

#4078ED is a mid, vivid blue. Relative luminance 0.206; OKLCH L 59.8% C 0.186 H 262.8°. Best body text is #000000 at 5.13:1 contrast (WCAG AA passes).

Color values

HEX	#4078ED
RGB	rgb(64, 120, 237)
HSL	hsl(221, 83%, 59%)
HSV	hsv(221, 73%, 93%)
CMYK	cmyk(73%, 49.4%, 0%, 7.1%)
CIE-LAB	lab(52.55, 21.05, -64.38)
CIE-LCH	lch(52.55, 67.73, 288.11°)
OKLab	oklab(59.81% -0.0233 -0.185)
OKLCH	oklch(59.81% 0.186 262.8)
XYZ	xyz(24.1114, 20.6347, 82.8165)
Luminance	0.2064 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4078ED #EDB540

analogous

#40CFED #4078ED #5F40ED

triadic

#4078ED #ED4078 #78ED40

tetradic

#4078ED #ED40CF #EDB540 #40ED5F

square

#4078ED #ED40CF #EDB540 #40ED5F

split-complementary

#4078ED #ED5F40 #CFED40

monochromatic

#0F3FA3 #1555DB #4078ED #78A0F2 #B0C7F8

Accessibility & contrast

On white

4.10

#4078ED on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.13

#4078ED on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4078ED

5.13:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4078ED	#FFFFFF	#000000	##000000
##4078ED	1.00	4.10	5.13	5.13
#FFFFFF	4.10	1.00	21.00	21.00
#000000	5.13	21.00	1.00	1.00
##000000	5.13	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3286F1

Deuteranopia (green-blind)

#0076EB

Tritanopia (blue-blind)

#0094A7

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4078ed;
/* rgb */ color: rgb(64, 120, 237);
/* oklch */ color: oklch(59.8% 0.186 262.8);

Tailwind

colors: {
  custom: {
    50: '#8a9ef4',
    500: '#4078ed',
    950: '#000000',
  },
}

SCSS

$custom: #4078ed;
$custom-light: #8a9ef4;
$custom-dark: #000000;

JSON

{
  "hex": "#4078ed",
  "rgb": {
    "r": 64,
    "g": 120,
    "b": 237
  },
  "hsl": {
    "h": 220.578,
    "s": 82.775,
    "l": 59.02
  },
  "oklch": {
    "l": 0.59812,
    "c": 0.18649,
    "h": 262.8
  },
  "luminance": 0.20637
}

Semantic roles & 50–950 ramp

primary

#4078ED

secondary

#E6D0A2

accent

#B82FF9

background

#F9F9FF

surface

#F2F2FE

border

#CCCCD6

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4078ED

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

Preview Lab → · Contrast checker → · Palette generator →