#4187BC#4187BC

#4187BC is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.107 H 243.9°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4187BC
RGB	rgb(65, 135, 188)
HSL	hsl(206, 49%, 50%)
HSV	hsv(206, 65%, 74%)
CMYK	cmyk(65.4%, 28.2%, 0%, 26.3%)
CIE-LAB	lab(54.11, -5.22, -34.21)
CIE-LCH	lch(54.11, 34.61, 261.32°)
OKLab	oklab(60.17% -0.0473 -0.0964)
OKLCH	oklch(60.17% 0.107 243.9)
XYZ	xyz(19.9176, 22.0806, 50.7795)
Luminance	0.2208 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187BC #BC7641

analogous

#41BCB4 #4187BC #4149BC

triadic

#4187BC #BC4187 #87BC41

tetradic

#4187BC #B441BC #BC7641 #49BC41

square

#4187BC #B441BC #BC7641 #49BC41

split-complementary

#4187BC #BC4149 #BCB441

monochromatic

#224661 #31668F #4187BC #6EA4CD #9BC0DC

Accessibility & contrast

On white

3.88

#4187BC on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#4187BC on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187BC

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187BC	#FFFFFF	#000000	##000000
##4187BC	1.00	3.88	5.42	5.42
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6F88BE

Deuteranopia (green-blind)

#5F7CBB

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4187bc;
/* rgb */ color: rgb(65, 135, 188);
/* oklch */ color: oklch(60.2% 0.107 243.9);

Tailwind

colors: {
  custom: {
    50: '#82a9d0',
    500: '#4187bc',
    950: '#000000',
  },
}

SCSS

$custom: #4187bc;
$custom-light: #82a9d0;
$custom-dark: #000000;

JSON

{
  "hex": "#4187bc",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 188
  },
  "hsl": {
    "h": 205.854,
    "s": 48.617,
    "l": 49.608
  },
  "oklch": {
    "l": 0.60166,
    "c": 0.10741,
    "h": 243.9
  },
  "luminance": 0.22083
}

Semantic roles & 50–950 ramp

primary

#4187BC

secondary

#C9A990

accent

#8A50D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4187BC

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

Preview Lab → · Contrast checker → · Palette generator →