#4183C5#4183C5

#4183C5 is a mid, vivid cyan. Relative luminance 0.214; OKLCH L 59.7% C 0.122 H 250.6°. Best body text is #000000 at 5.28:1 contrast (WCAG AA passes).

Color values

HEX	#4183C5
RGB	rgb(65, 131, 197)
HSL	hsl(210, 53%, 51%)
HSV	hsv(210, 67%, 77%)
CMYK	cmyk(67%, 33.5%, 0%, 22.7%)
CIE-LAB	lab(53.37, 0.22, -40.51)
CIE-LCH	lch(53.37, 40.51, 270.31°)
OKLab	oklab(59.72% -0.0405 -0.1148)
OKLCH	oklch(59.72% 0.122 250.6)
XYZ	xyz(20.3706, 21.3855, 55.8668)
Luminance	0.2139 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183C5 #C58341

analogous

#41C5C5 #4183C5 #4141C5

triadic

#4183C5 #C54183 #83C541

tetradic

#4183C5 #C541C5 #C58341 #41C541

square

#4183C5 #C541C5 #C58341 #41C541

split-complementary

#4183C5 #C54141 #C5C541

monochromatic

#21466B #2F649A #4183C5 #70A2D3 #9FC0E2

Accessibility & contrast

On white

3.98

#4183C5 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.28

#4183C5 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183C5

5.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183C5	#FFFFFF	#000000	##000000
##4183C5	1.00	3.98	5.28	5.28
#FFFFFF	3.98	1.00	21.00	21.00
#000000	5.28	21.00	1.00	1.00
##000000	5.28	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6686C8

Deuteranopia (green-blind)

#537AC4

Tritanopia (blue-blind)

#00929B

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4183c5;
/* rgb */ color: rgb(65, 131, 197);
/* oklch */ color: oklch(59.7% 0.122 250.6);

Tailwind

colors: {
  custom: {
    50: '#83a6d7',
    500: '#4183c5',
    950: '#000000',
  },
}

SCSS

$custom: #4183c5;
$custom-light: #83a6d7;
$custom-dark: #000000;

JSON

{
  "hex": "#4183c5",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 197
  },
  "hsl": {
    "h": 210,
    "s": 53.226,
    "l": 51.373
  },
  "oklch": {
    "l": 0.59721,
    "c": 0.12173,
    "h": 250.6
  },
  "luminance": 0.21388
}

Semantic roles & 50–950 ramp

primary

#4183C5

secondary

#CEB194

accent

#944BDD

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4183C5

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

Preview Lab → · Contrast checker → · Palette generator →