#4180CB#4180CB

#4180CB is a mid, vivid cyan. Relative luminance 0.209; OKLCH L 59.4% C 0.132 H 254.3°. Best body text is #000000 at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#4180CB
RGB	rgb(65, 128, 203)
HSL	hsl(213, 57%, 53%)
HSV	hsv(213, 68%, 80%)
CMYK	cmyk(68%, 36.9%, 0%, 20.4%)
CIE-LAB	lab(52.81, 4.11, -44.81)
CIE-LCH	lch(52.81, 45.00, 275.24°)
OKLab	oklab(59.38% -0.0359 -0.1274)
OKLCH	oklch(59.38% 0.132 254.3)
XYZ	xyz(20.6747, 20.8718, 59.4274)
Luminance	0.2087 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4180CB #CB8C41

analogous

#41C5CB #4180CB #4741CB

triadic

#4180CB #CB4180 #80CB41

tetradic

#4180CB #CB41C5 #CB8C41 #41CB47

square

#4180CB #CB41C5 #CB8C41 #41CB47

split-complementary

#4180CB #CB4741 #C5CB41

monochromatic

#1F4572 #2C62A2 #4180CB #71A0D8 #A1C0E5

Accessibility & contrast

On white

4.06

#4180CB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.17

#4180CB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4180CB

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4180CB	#FFFFFF	#000000	##000000
##4180CB	1.00	4.06	5.17	5.17
#FFFFFF	4.06	1.00	21.00	21.00
#000000	5.17	21.00	1.00	1.00
##000000	5.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E85CE

Deuteranopia (green-blind)

#4A78C9

Tritanopia (blue-blind)

#00919C

Achromatopsia (no color)

#7E7E7E

Design tokens & code

CSS

--color: #4180cb;
/* rgb */ color: rgb(65, 128, 203);
/* oklch */ color: oklch(59.4% 0.132 254.3);

Tailwind

colors: {
  custom: {
    50: '#84a4db',
    500: '#4180cb',
    950: '#000000',
  },
}

SCSS

$custom: #4180cb;
$custom-light: #84a4db;
$custom-dark: #000000;

JSON

{
  "hex": "#4180cb",
  "rgb": {
    "r": 65,
    "g": 128,
    "b": 203
  },
  "hsl": {
    "h": 212.609,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.59383,
    "c": 0.13236,
    "h": 254.3
  },
  "luminance": 0.20874
}

Semantic roles & 50–950 ramp

primary

#4180CB

secondary

#D2B796

accent

#9B48E0

background

#F8FAFD

surface

#F0F3FB

border

#CBCDD4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4180CB

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

Preview Lab → · Contrast checker → · Palette generator →