#4183B2#4183B2

#4183B2 is a mid, moderate cyan. Relative luminance 0.206; OKLCH L 58.7% C 0.099 H 242.1°. Best body text is #000000 at 5.11:1 contrast (WCAG AA passes).

Color values

HEX	#4183B2
RGB	rgb(65, 131, 178)
HSL	hsl(205, 47%, 48%)
HSV	hsv(205, 63%, 70%)
CMYK	cmyk(63.5%, 26.4%, 0%, 30.2%)
CIE-LAB	lab(52.47, -6.28, -31.04)
CIE-LCH	lch(52.47, 31.67, 258.57°)
OKLab	oklab(58.72% -0.0463 -0.0873)
OKLCH	oklch(58.72% 0.099 242.1)
XYZ	xyz(18.3291, 20.5690, 45.1151)
Luminance	0.2057 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4183B2 #B27041

analogous

#41B2A9 #4183B2 #414AB2

triadic

#4183B2 #B24183 #83B241

tetradic

#4183B2 #A941B2 #B27041 #4AB241

square

#4183B2 #A941B2 #B27041 #4AB241

split-complementary

#4183B2 #B2414A #B2A941

monochromatic

#204158 #316285 #4183B2 #68A0C8 #95BCD8

Accessibility & contrast

On white

4.11

#4183B2 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.11

#4183B2 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4183B2

5.11:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4183B2	#FFFFFF	#000000	##000000
##4183B2	1.00	4.11	5.11	5.11
#FFFFFF	4.11	1.00	21.00	21.00
#000000	5.11	21.00	1.00	1.00
##000000	5.11	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6E83B4

Deuteranopia (green-blind)

#5F78B1

Tritanopia (blue-blind)

#008F93

Achromatopsia (no color)

#7D7D7D

Design tokens & code

CSS

--color: #4183b2;
/* rgb */ color: rgb(65, 131, 178);
/* oklch */ color: oklch(58.7% 0.099 242.1);

Tailwind

colors: {
  custom: {
    50: '#80a6c9',
    500: '#4183b2',
    950: '#000000',
  },
}

SCSS

$custom: #4183b2;
$custom-light: #80a6c9;
$custom-dark: #000000;

JSON

{
  "hex": "#4183b2",
  "rgb": {
    "r": 65,
    "g": 131,
    "b": 178
  },
  "hsl": {
    "h": 204.956,
    "s": 46.502,
    "l": 47.647
  },
  "oklch": {
    "l": 0.58723,
    "c": 0.0988,
    "h": 242.1
  },
  "luminance": 0.20571
}

Semantic roles & 50–950 ramp

primary

#4183B2

secondary

#C4A38B

accent

#8952D6

background

#F8FAFC

surface

#EFF4F8

border

#CACED1

text

#0B0F13

muted

#7C7F82

Preview Lab

Preview with #4183B2

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

Preview Lab → · Contrast checker → · Palette generator →