#4188CF#4188CF

#4188CF is a mid, vivid cyan. Relative luminance 0.232; OKLCH L 61.4% C 0.130 H 250.7°. Best body text is #000000 at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#4188CF
RGB	rgb(65, 136, 207)
HSL	hsl(210, 60%, 53%)
HSV	hsv(210, 69%, 81%)
CMYK	cmyk(68.6%, 34.3%, 0%, 18.8%)
CIE-LAB	lab(55.31, 0.73, -43.11)
CIE-LCH	lch(55.31, 43.12, 270.97°)
OKLab	oklab(61.41% -0.0427 -0.1223)
OKLCH	oklch(61.41% 0.13 250.7)
XYZ	xyz(22.2424, 23.2348, 62.3319)
Luminance	0.2324 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4188CF #CF8841

analogous

#41CFCF #4188CF #4141CF

triadic

#4188CF #CF4188 #88CF41

tetradic

#4188CF #CF41CF #CF8841 #41CF41

square

#4188CF #CF41CF #CF8841 #41CF41

split-complementary

#4188CF #CF4141 #CFCF41

monochromatic

#1E4B77 #2B69A8 #4188CF #72A7DB #A3C5E8

Accessibility & contrast

On white

3.72

#4188CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.65

#4188CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4188CF

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4188CF	#FFFFFF	#000000	##000000
##4188CF	1.00	3.72	5.65	5.65
#FFFFFF	3.72	1.00	21.00	21.00
#000000	5.65	21.00	1.00	1.00
##000000	5.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#688CD2

Deuteranopia (green-blind)

#547ECE

Tritanopia (blue-blind)

#0099A2

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4188cf;
/* rgb */ color: rgb(65, 136, 207);
/* oklch */ color: oklch(61.4% 0.130 250.7);

Tailwind

colors: {
  custom: {
    50: '#85aade',
    500: '#4188cf',
    950: '#000000',
  },
}

SCSS

$custom: #4188cf;
$custom-light: #85aade;
$custom-dark: #000000;

JSON

{
  "hex": "#4188cf",
  "rgb": {
    "r": 65,
    "g": 136,
    "b": 207
  },
  "hsl": {
    "h": 210,
    "s": 59.664,
    "l": 53.333
  },
  "oklch": {
    "l": 0.61409,
    "c": 0.12957,
    "h": 250.7
  },
  "luminance": 0.23237
}

Semantic roles & 50–950 ramp

primary

#4188CF

secondary

#D4B697

accent

#9445E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C1015

muted

#7D7F83

Preview Lab

Preview with #4188CF

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

Preview Lab → · Contrast checker → · Palette generator →