#4178EA#4178EA

#4178EA is a mid, vivid blue. Relative luminance 0.205; OKLCH L 59.6% C 0.182 H 262.8°. Best body text is #000000 at 5.10:1 contrast (WCAG AA passes).

Color values

HEX	#4178EA
RGB	rgb(65, 120, 234)
HSL	hsl(220, 80%, 59%)
HSV	hsv(220, 72%, 92%)
CMYK	cmyk(72.2%, 48.7%, 0%, 8.2%)
CIE-LAB	lab(52.39, 20.10, -62.95)
CIE-LCH	lch(52.39, 66.08, 287.71°)
OKLab	oklab(59.64% -0.0229 -0.1808)
OKLCH	oklch(59.64% 0.182 262.8)
XYZ	xyz(23.7424, 20.4947, 80.5305)
Luminance	0.2050 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178EA #EAB341

analogous

#41CDEA #4178EA #5E41EA

triadic

#4178EA #EA4178 #78EA41

tetradic

#4178EA #EA41CD #EAB341 #41EA5E

square

#4178EA #EA41CD #EAB341 #41EA5E

split-complementary

#4178EA #EA5E41 #CDEA41

monochromatic

#12409F #1856D6 #4178EA #789FF0 #AFC6F6

Accessibility & contrast

On white

4.12

#4178EA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.10

#4178EA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178EA

5.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178EA	#FFFFFF	#000000	##000000
##4178EA	1.00	4.12	5.10	5.10
#FFFFFF	4.12	1.00	21.00	21.00
#000000	5.10	21.00	1.00	1.00
##000000	5.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#3685EE

Deuteranopia (green-blind)

#0076E8

Tritanopia (blue-blind)

#0093A6

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4178ea;
/* rgb */ color: rgb(65, 120, 234);
/* oklch */ color: oklch(59.6% 0.182 262.8);

Tailwind

colors: {
  custom: {
    50: '#8a9ef1',
    500: '#4178ea',
    950: '#000000',
  },
}

SCSS

$custom: #4178ea;
$custom-light: #8a9ef1;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ea",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 234
  },
  "hsl": {
    "h": 220.473,
    "s": 80.095,
    "l": 58.627
  },
  "oklch": {
    "l": 0.59642,
    "c": 0.18226,
    "h": 262.8
  },
  "luminance": 0.20497
}

Semantic roles & 50–950 ramp

primary

#4178EA

secondary

#E5CFA2

accent

#B631F7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0D0E17

muted

#7E7E85

Preview Lab

Preview with #4178EA

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

Preview Lab → · Contrast checker → · Palette generator →