#4180BB#4180BB

#4180BB is a mid, moderate cyan. Relative luminance 0.202; OKLCH L 58.5% C 0.112 H 248.9°. Best body text is #000000 at 5.03:1 contrast (WCAG AA passes).

Color values

HEX	#4180BB
RGB	rgb(65, 128, 187)
HSL	hsl(209, 48%, 49%)
HSV	hsv(209, 65%, 73%)
CMYK	cmyk(65.2%, 31.6%, 0%, 26.7%)
CIE-LAB	lab(52.00, -1.46, -36.95)
CIE-LCH	lch(52.00, 36.98, 267.74°)
OKLab	oklab(58.49% -0.0402 -0.1044)
OKLCH	oklch(58.49% 0.112 248.9)
XYZ	xyz(18.8655, 20.1481, 49.8988)
Luminance	0.2015 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4180BB #BB7C41

analogous

#41BBB9 #4180BB #4143BB

triadic

#4180BB #BB4180 #80BB41

tetradic

#4180BB #B941BB #BB7C41 #43BB41

square

#4180BB #B941BB #BB7C41 #43BB41

split-complementary

#4180BB #BB4143 #BBB941

monochromatic

#214260 #31618E #4180BB #6D9ECC #9ABCDC

Accessibility & contrast

On white

4.17

#4180BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.03

#4180BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4180BB

5.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4180BB	#FFFFFF	#000000	##000000
##4180BB	1.00	4.17	5.03	5.03
#FFFFFF	4.17	1.00	21.00	21.00
#000000	5.03	21.00	1.00	1.00
##000000	5.03	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6682BE

Deuteranopia (green-blind)

#5577BA

Tritanopia (blue-blind)

#008E95

Achromatopsia (no color)

#7C7C7C

Design tokens & code

CSS

--color: #4180bb;
/* rgb */ color: rgb(65, 128, 187);
/* oklch */ color: oklch(58.5% 0.112 248.9);

Tailwind

colors: {
  custom: {
    50: '#82a4cf',
    500: '#4180bb',
    950: '#000000',
  },
}

SCSS

$custom: #4180bb;
$custom-light: #82a4cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4180bb",
  "rgb": {
    "r": 65,
    "g": 128,
    "b": 187
  },
  "hsl": {
    "h": 209.016,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.58489,
    "c": 0.11194,
    "h": 248.9
  },
  "luminance": 0.2015
}

Semantic roles & 50–950 ramp

primary

#4180BB

secondary

#C8AB90

accent

#9250D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4180BB

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

Preview Lab → · Contrast checker → · Palette generator →