#4183CE#4183CE

#4183CE is a mid, vivid cyan. Relative luminance 0.218; OKLCH L 60.2% C 0.133 H 253.4°. Best body text is #000000 at 5.36:1 contrast (WCAG AA passes).

Color values

HEX	#4183CE
RGB	rgb(65, 131, 206)
HSL	hsl(212, 59%, 53%)
HSV	hsv(212, 68%, 81%)
CMYK	cmyk(68.4%, 36.4%, 0%, 19.2%)
CIE-LAB	lab(53.83, 3.36, -44.90)
CIE-LCH	lch(53.83, 45.03, 274.28°)
OKLab	oklab(60.23% -0.0381 -0.1276)
OKLCH	oklch(60.23% 0.133 253.4)
XYZ	xyz(21.4327, 21.8104, 61.4608)
Luminance	0.2181 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183CE #CE8C41

analogous

#41C9CE #4183CE #4541CE

triadic

#4183CE #CE4183 #83CE41

tetradic

#4183CE #CE41C9 #CE8C41 #41CE45

square

#4183CE #CE41C9 #CE8C41 #41CE45

split-complementary

#4183CE #CE4541 #C9CE41

monochromatic

#1E4876 #2B65A7 #4183CE #72A3DB #A2C3E7

Accessibility & contrast

On white

3.92

#4183CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.36

#4183CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183CE

5.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183CE	#FFFFFF	#000000	##000000
##4183CE	1.00	3.92	5.36	5.36
#FFFFFF	3.92	1.00	21.00	21.00
#000000	5.36	21.00	1.00	1.00
##000000	5.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6188D1

Deuteranopia (green-blind)

#4D7BCC

Tritanopia (blue-blind)

#00949F

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4183ce;
/* rgb */ color: rgb(65, 131, 206);
/* oklch */ color: oklch(60.2% 0.133 253.4);

Tailwind

colors: {
  custom: {
    50: '#85a6dd',
    500: '#4183ce',
    950: '#000000',
  },
}

SCSS

$custom: #4183ce;
$custom-light: #85a6dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4183ce",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 206
  },
  "hsl": {
    "h": 211.915,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.60228,
    "c": 0.13319,
    "h": 253.4
  },
  "luminance": 0.21813
}

Semantic roles & 50–950 ramp

primary

#4183CE

secondary

#D4B797

accent

#9946E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4183CE

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

Preview Lab → · Contrast checker → · Palette generator →