#4187BB#4187BB

#4187BB is a mid, moderate cyan. Relative luminance 0.220; OKLCH L 60.1% C 0.106 H 243.4°. Best body text is #000000 at 5.41:1 contrast (WCAG AA passes).

Color values

HEX	#4187BB
RGB	rgb(65, 135, 187)
HSL	hsl(206, 48%, 49%)
HSV	hsv(206, 65%, 73%)
CMYK	cmyk(65.2%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(54.07, -5.56, -33.71)
CIE-LCH	lch(54.07, 34.17, 260.63°)
OKLab	oklab(60.11% -0.0476 -0.095)
OKLCH	oklch(60.11% 0.106 243.4)
XYZ	xyz(19.8102, 22.0376, 50.2137)
Luminance	0.2204 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187BB #BB7541

analogous

#41BBB2 #4187BB #414ABB

triadic

#4187BB #BB4187 #87BB41

tetradic

#4187BB #B241BB #BB7541 #4ABB41

square

#4187BB #B241BB #BB7541 #4ABB41

split-complementary

#4187BB #BB414A #BBB241

monochromatic

#214560 #31668E #4187BB #6DA4CC #9AC0DC

Accessibility & contrast

On white

3.88

#4187BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.41

#4187BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187BB

5.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187BB	#FFFFFF	#000000	##000000
##4187BB	1.00	3.88	5.41	5.41
#FFFFFF	3.88	1.00	21.00	21.00
#000000	5.41	21.00	1.00	1.00
##000000	5.41	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BD

Deuteranopia (green-blind)

#5F7CBA

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4187bb;
/* rgb */ color: rgb(65, 135, 187);
/* oklch */ color: oklch(60.1% 0.106 243.4);

Tailwind

colors: {
  custom: {
    50: '#82a9cf',
    500: '#4187bb',
    950: '#000000',
  },
}

SCSS

$custom: #4187bb;
$custom-light: #82a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4187bb",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 205.574,
    "s": 48.413,
    "l": 49.412
  },
  "oklch": {
    "l": 0.60115,
    "c": 0.10626,
    "h": 243.4
  },
  "luminance": 0.2204
}

Semantic roles & 50–950 ramp

primary

#4187BB

secondary

#C8A890

accent

#8A50D8

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0B0F14

muted

#7C7F82

Preview Lab

Preview with #4187BB

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

Preview Lab → · Contrast checker → · Palette generator →