#4178CA#4178CA

#4178CA is a mid, vivid blue. Relative luminance 0.188; OKLCH L 57.5% C 0.140 H 258.3°. Best body text is #000000 at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#4178CA
RGB	rgb(65, 120, 202)
HSL	hsl(216, 56%, 52%)
HSV	hsv(216, 68%, 79%)
CMYK	cmyk(67.8%, 40.6%, 0%, 20.8%)
CIE-LAB	lab(50.47, 8.64, -47.95)
CIE-LCH	lch(50.47, 48.72, 280.21°)
OKLab	oklab(57.55% -0.0284 -0.1367)
OKLCH	oklch(57.55% 0.14 258.3)
XYZ	xyz(19.5533, 18.8190, 58.4676)
Luminance	0.1882 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4178CA #CA9341

analogous

#41BDCA #4178CA #4E41CA

triadic

#4178CA #CA4178 #78CA41

tetradic

#4178CA #CA41BD #CA9341 #41CA4E

square

#4178CA #CA41BD #CA9341 #41CA4E

split-complementary

#4178CA #CA4E41 #BDCA41

monochromatic

#204071 #2D5BA1 #4178CA #719AD7 #A1BCE5

Accessibility & contrast

On white

4.41

#4178CA on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

4.76

#4178CA on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4178CA

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4178CA	#FFFFFF	#000000	##000000
##4178CA	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)

#527FCD

Deuteranopia (green-blind)

#3D72C8

Tritanopia (blue-blind)

#008B97

Achromatopsia (no color)

#787878

Design tokens & code

CSS

--color: #4178ca;
/* rgb */ color: rgb(65, 120, 202);
/* oklch */ color: oklch(57.5% 0.140 258.3);

Tailwind

colors: {
  custom: {
    50: '#849eda',
    500: '#4178ca',
    950: '#000000',
  },
}

SCSS

$custom: #4178ca;
$custom-light: #849eda;
$custom-dark: #000000;

JSON

{
  "hex": "#4178ca",
  "rgb": {
    "r": 65,
    "g": 120,
    "b": 202
  },
  "hsl": {
    "h": 215.912,
    "s": 56.379,
    "l": 52.353
  },
  "oklch": {
    "l": 0.57549,
    "c": 0.13962,
    "h": 258.3
  },
  "luminance": 0.18821
}

Semantic roles & 50–950 ramp

primary

#4178CA

secondary

#D1B996

accent

#A348E0

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0E15

muted

#7D7E83

Preview Lab

Preview with #4178CA

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

Preview Lab → · Contrast checker → · Palette generator →