#4183E8#4183E8

#4183E8 is a mid, vivid blue. Relative luminance 0.232; OKLCH L 61.8% C 0.167 H 258.8°. Best body text is #000000 at 5.64:1 contrast (WCAG AA passes).

Color values

HEX	#4183E8
RGB	rgb(65, 131, 232)
HSL	hsl(216, 78%, 58%)
HSV	hsv(216, 72%, 91%)
CMYK	cmyk(72%, 43.5%, 0%, 9%)
CIE-LAB	lab(55.26, 12.60, -57.23)
CIE-LCH	lch(55.26, 58.60, 282.42°)
OKLab	oklab(61.81% -0.0325 -0.1638)
OKLCH	oklch(61.81% 0.167 258.8)
XYZ	xyz(24.8565, 23.1799, 79.4925)
Luminance	0.2318 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183E8 #E8A641

analogous

#41D7E8 #4183E8 #5241E8

triadic

#4183E8 #E84183 #83E841

tetradic

#4183E8 #E841D7 #E8A641 #41E852

square

#4183E8 #E841D7 #E8A641 #41E852

split-complementary

#4183E8 #E85241 #D7E841

monochromatic

#13499C #1963D2 #4183E8 #78A7EF #AECAF5

Accessibility & contrast

On white

3.73

#4183E8 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.64

#4183E8 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183E8

5.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183E8	#FFFFFF	#000000	##000000
##4183E8	1.00	3.73	5.64	5.64
#FFFFFF	3.73	1.00	21.00	21.00
#000000	5.64	21.00	1.00	1.00
##000000	5.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#518DEC

Deuteranopia (green-blind)

#317DE6

Tritanopia (blue-blind)

#009BAA

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4183e8;
/* rgb */ color: rgb(65, 131, 232);
/* oklch */ color: oklch(61.8% 0.167 258.8);

Tailwind

colors: {
  custom: {
    50: '#89a6f0',
    500: '#4183e8',
    950: '#000000',
  },
}

SCSS

$custom: #4183e8;
$custom-light: #89a6f0;
$custom-dark: #000000;

JSON

{
  "hex": "#4183e8",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 232
  },
  "hsl": {
    "h": 216.287,
    "s": 78.404,
    "l": 58.235
  },
  "oklch": {
    "l": 0.61805,
    "c": 0.16699,
    "h": 258.8
  },
  "luminance": 0.23183
}

Semantic roles & 50–950 ramp

primary

#4183E8

secondary

#E4C9A1

accent

#A833F5

background

#F9FAFE

surface

#F1F4FD

border

#CBCED5

text

#0D0F16

muted

#7E7F84

Preview Lab

Preview with #4183E8

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

Preview Lab → · Contrast checker → · Palette generator →