#4183CC#4183CC

#4183CC is a mid, vivid cyan. Relative luminance 0.217; OKLCH L 60.1% C 0.131 H 252.8°. Best body text is #000000 at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#4183CC
RGB	rgb(65, 131, 204)
HSL	hsl(212, 58%, 53%)
HSV	hsv(212, 68%, 80%)
CMYK	cmyk(68.1%, 35.8%, 0%, 20%)
CIE-LAB	lab(53.72, 2.66, -43.93)
CIE-LCH	lch(53.72, 44.01, 273.47°)
OKLab	oklab(60.11% -0.0386 -0.1248)
OKLCH	oklch(60.11% 0.131 252.8)
XYZ	xyz(21.1913, 21.7138, 60.1894)
Luminance	0.2172 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183CC #CC8A41

analogous

#41C8CC #4183CC #4541CC

triadic

#4183CC #CC4183 #83CC41

tetradic

#4183CC #CC41C8 #CC8A41 #41CC45

square

#4183CC #CC41C8 #CC8A41 #41CC45

split-complementary

#4183CC #CC4541 #C8CC41

monochromatic

#1F4774 #2C65A4 #4183CC #71A2D9 #A1C2E6

Accessibility & contrast

On white

3.93

#4183CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.34

#4183CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183CC

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183CC	#FFFFFF	#000000	##000000
##4183CC	1.00	3.93	5.34	5.34
#FFFFFF	3.93	1.00	21.00	21.00
#000000	5.34	21.00	1.00	1.00
##000000	5.34	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6288CF

Deuteranopia (green-blind)

#4E7ACB

Tritanopia (blue-blind)

#00949E

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #4183cc;
/* rgb */ color: rgb(65, 131, 204);
/* oklch */ color: oklch(60.1% 0.131 252.8);

Tailwind

colors: {
  custom: {
    50: '#84a6dc',
    500: '#4183cc',
    950: '#000000',
  },
}

SCSS

$custom: #4183cc;
$custom-light: #84a6dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4183cc",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 204
  },
  "hsl": {
    "h": 211.511,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.60113,
    "c": 0.13062,
    "h": 252.8
  },
  "luminance": 0.21716
}

Semantic roles & 50–950 ramp

primary

#4183CC

secondary

#D3B696

accent

#9847E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4183CC

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

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