#4183D9#4183D9

#4183D9 is a mid, vivid cyan. Relative luminance 0.224; OKLCH L 60.9% C 0.147 H 256.1°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#4183D9
RGB	rgb(65, 131, 217)
HSL	hsl(214, 67%, 55%)
HSV	hsv(214, 70%, 85%)
CMYK	cmyk(70%, 39.6%, 0%, 14.9%)
CIE-LAB	lab(54.41, 7.25, -50.18)
CIE-LCH	lch(54.41, 50.70, 278.22°)
OKLab	oklab(60.88% -0.0355 -0.1431)
OKLCH	oklch(60.88% 0.147 256.1)
XYZ	xyz(22.8161, 22.3637, 68.7464)
Luminance	0.2237 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183D9 #D99741

analogous

#41CFD9 #4183D9 #4B41D9

triadic

#4183D9 #D94183 #83D941

tetradic

#4183D9 #D941CF #D99741 #41D94B

square

#4183D9 #D941CF #D99741 #41D94B

split-complementary

#4183D9 #D94B41 #CFD941

monochromatic

#1B4985 #2565B8 #4183D9 #74A4E3 #A7C6ED

Accessibility & contrast

On white

3.84

#4183D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#4183D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183D9

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183D9	#FFFFFF	#000000	##000000
##4183D9	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5B8ADC

Deuteranopia (green-blind)

#437CD7

Tritanopia (blue-blind)

#0097A3

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4183d9;
/* rgb */ color: rgb(65, 131, 217);
/* oklch */ color: oklch(60.9% 0.147 256.1);

Tailwind

colors: {
  custom: {
    50: '#87a6e5',
    500: '#4183d9',
    950: '#000000',
  },
}

SCSS

$custom: #4183d9;
$custom-light: #87a6e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4183d9",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 217
  },
  "hsl": {
    "h": 213.947,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.60875,
    "c": 0.14743,
    "h": 256.1
  },
  "luminance": 0.22366
}

Semantic roles & 50–950 ramp

primary

#4183D9

secondary

#DBBF9B

accent

#9F3EEA

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #4183D9

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

Preview Lab → · Contrast checker → · Palette generator →