#4183BD#4183BD

#4183BD is a mid, moderate cyan. Relative luminance 0.210; OKLCH L 59.3% C 0.112 H 247.5°. Best body text is #000000 at 5.21:1 contrast (WCAG AA passes).

Color values

HEX	#4183BD
RGB	rgb(65, 131, 189)
HSL	hsl(208, 49%, 50%)
HSV	hsv(208, 66%, 74%)
CMYK	cmyk(65.6%, 30.7%, 0%, 25.9%)
CIE-LAB	lab(52.98, -2.54, -36.56)
CIE-LCH	lch(52.98, 36.65, 266.02°)
OKLab	oklab(59.29% -0.0428 -0.1033)
OKLCH	oklch(59.29% 0.112 247.5)
XYZ	xyz(19.4782, 21.0286, 51.1667)
Luminance	0.2103 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183BD #BD7B41

analogous

#41BDB9 #4183BD #4145BD

triadic

#4183BD #BD4183 #83BD41

tetradic

#4183BD #B941BD #BD7B41 #45BD41

square

#4183BD #B941BD #BD7B41 #45BD41

split-complementary

#4183BD #BD4145 #BDB941

monochromatic

#224462 #31638F #4183BD #6EA1CD #9CBEDD

Accessibility & contrast

On white

4.03

#4183BD on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.21

#4183BD on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183BD

5.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183BD	#FFFFFF	#000000	##000000
##4183BD	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)

#6A85C0

Deuteranopia (green-blind)

#5979BC

Tritanopia (blue-blind)

#009198

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4183bd;
/* rgb */ color: rgb(65, 131, 189);
/* oklch */ color: oklch(59.3% 0.112 247.5);

Tailwind

colors: {
  custom: {
    50: '#82a6d1',
    500: '#4183bd',
    950: '#000000',
  },
}

SCSS

$custom: #4183bd;
$custom-light: #82a6d1;
$custom-dark: #000000;

JSON

{
  "hex": "#4183bd",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 189
  },
  "hsl": {
    "h": 208.065,
    "s": 48.819,
    "l": 49.804
  },
  "oklch": {
    "l": 0.59289,
    "c": 0.1118,
    "h": 247.5
  },
  "luminance": 0.21031
}

Semantic roles & 50–950 ramp

primary

#4183BD

secondary

#C9AB91

accent

#8F4FD8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4183BD

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

Preview Lab → · Contrast checker → · Palette generator →