#4181C9#4181C9

#4181C9 is a mid, vivid cyan. Relative luminance 0.210; OKLCH L 59.5% C 0.129 H 253.1°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#4181C9
RGB	rgb(65, 129, 201)
HSL	hsl(212, 56%, 52%)
HSV	hsv(212, 68%, 79%)
CMYK	cmyk(67.7%, 35.8%, 0%, 21.2%)
CIE-LAB	lab(52.99, 2.81, -43.38)
CIE-LCH	lch(52.99, 43.47, 273.70°)
OKLab	oklab(59.49% -0.0374 -0.1232)
OKLCH	oklch(59.49% 0.129 253.1)
XYZ	xyz(20.5690, 21.0393, 58.2240)
Luminance	0.2104 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4181C9 #C98941

analogous

#41C5C9 #4181C9 #4541C9

triadic

#4181C9 #C94181 #81C941

tetradic

#4181C9 #C941C5 #C98941 #41C945

square

#4181C9 #C941C5 #C98941 #41C945

split-complementary

#4181C9 #C94541 #C5C941

monochromatic

#204570 #2D639F #4181C9 #71A1D7 #A0C0E4

Accessibility & contrast

On white

4.03

#4181C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#4181C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4181C9

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4181C9	#FFFFFF	#000000	##000000
##4181C9	1.00	4.03	5.21	5.21
#FFFFFF	4.03	1.00	21.00	21.00
#000000	5.21	21.00	1.00	1.00
##000000	5.21	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6186CC

Deuteranopia (green-blind)

#4E79C8

Tritanopia (blue-blind)

#00929B

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4181c9;
/* rgb */ color: rgb(65, 129, 201);
/* oklch */ color: oklch(59.5% 0.129 253.1);

Tailwind

colors: {
  custom: {
    50: '#84a5da',
    500: '#4181c9',
    950: '#000000',
  },
}

SCSS

$custom: #4181c9;
$custom-light: #84a5da;
$custom-dark: #000000;

JSON

{
  "hex": "#4181c9",
  "rgb": {
    "r": 65,
    "g": 129,
    "b": 201
  },
  "hsl": {
    "h": 211.765,
    "s": 55.738,
    "l": 52.157
  },
  "oklch": {
    "l": 0.59492,
    "c": 0.12876,
    "h": 253.1
  },
  "luminance": 0.21041
}

Semantic roles & 50–950 ramp

primary

#4181C9

secondary

#D1B595

accent

#9849DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4181C9

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

Preview Lab → · Contrast checker → · Palette generator →