#4181CC#4181CC

#4181CC is a mid, vivid cyan. Relative luminance 0.212; OKLCH L 59.7% C 0.133 H 254.0°. Best body text is #000000 at 5.24:1 contrast (WCAG AA passes).

Color values

HEX	#4181CC
RGB	rgb(65, 129, 204)
HSL	hsl(212, 58%, 53%)
HSV	hsv(212, 68%, 80%)
CMYK	cmyk(68.1%, 36.8%, 0%, 20%)
CIE-LAB	lab(53.15, 3.86, -44.84)
CIE-LCH	lch(53.15, 45.01, 274.92°)
OKLab	oklab(59.67% -0.0366 -0.1275)
OKLCH	oklch(59.67% 0.133 254)
XYZ	xyz(20.9253, 21.1818, 60.1007)
Luminance	0.2118 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181CC #CC8C41

analogous

#41C6CC #4181CC #4641CC

triadic

#4181CC #CC4181 #81CC41

tetradic

#4181CC #CC41C6 #CC8C41 #41CC46

square

#4181CC #CC41C6 #CC8C41 #41CC46

split-complementary

#4181CC #CC4641 #C6CC41

monochromatic

#1F4674 #2C63A4 #4181CC #71A1D9 #A1C1E6

Accessibility & contrast

On white

4.01

#4181CC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.24

#4181CC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181CC

5.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181CC	#FFFFFF	#000000	##000000
##4181CC	1.00	4.01	5.24	5.24
#FFFFFF	4.01	1.00	21.00	21.00
#000000	5.24	21.00	1.00	1.00
##000000	5.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5F86CF

Deuteranopia (green-blind)

#4B79CA

Tritanopia (blue-blind)

#00929D

Achromatopsia (no color)

#7F7F7F

Design tokens & code

CSS

--color: #4181cc;
/* rgb */ color: rgb(65, 129, 204);
/* oklch */ color: oklch(59.7% 0.133 254.0);

Tailwind

colors: {
  custom: {
    50: '#84a5dc',
    500: '#4181cc',
    950: '#000000',
  },
}

SCSS

$custom: #4181cc;
$custom-light: #84a5dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4181cc",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 204
  },
  "hsl": {
    "h": 212.374,
    "s": 57.676,
    "l": 52.745
  },
  "oklch": {
    "l": 0.59665,
    "c": 0.13263,
    "h": 254
  },
  "luminance": 0.21184
}

Semantic roles & 50–950 ramp

primary

#4181CC

secondary

#D3B796

accent

#9A47E1

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4181CC

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

Preview Lab → · Contrast checker → · Palette generator →