#4187CE#4187CE

#4187CE is a mid, vivid cyan. Relative luminance 0.229; OKLCH L 61.1% C 0.129 H 251.0°. Best body text is #000000 at 5.58:1 contrast (WCAG AA passes).

Color values

HEX	#4187CE
RGB	rgb(65, 135, 206)
HSL	hsl(210, 59%, 53%)
HSV	hsv(210, 68%, 81%)
CMYK	cmyk(68.4%, 34.5%, 0%, 19.2%)
CIE-LAB	lab(54.98, 0.98, -43.08)
CIE-LCH	lch(54.98, 43.09, 271.30°)
OKLab	oklab(61.13% -0.042 -0.1222)
OKLCH	oklch(61.13% 0.129 251)
XYZ	xyz(21.9804, 22.9057, 61.6434)
Luminance	0.2291 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187CE #CE8841

analogous

#41CDCE #4187CE #4141CE

triadic

#4187CE #CE4187 #87CE41

tetradic

#4187CE #CE41CD #CE8841 #41CE41

square

#4187CE #CE41CD #CE8841 #41CE41

split-complementary

#4187CE #CE4141 #CDCE41

monochromatic

#1E4A76 #2B68A7 #4187CE #72A6DB #A2C4E7

Accessibility & contrast

On white

3.76

#4187CE on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.58

#4187CE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187CE

5.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187CE	#FFFFFF	#000000	##000000
##4187CE	1.00	3.76	5.58	5.58
#FFFFFF	3.76	1.00	21.00	21.00
#000000	5.58	21.00	1.00	1.00
##000000	5.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678BD1

Deuteranopia (green-blind)

#537ECD

Tritanopia (blue-blind)

#0098A1

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4187ce;
/* rgb */ color: rgb(65, 135, 206);
/* oklch */ color: oklch(61.1% 0.129 251.0);

Tailwind

colors: {
  custom: {
    50: '#85a9dd',
    500: '#4187ce',
    950: '#000000',
  },
}

SCSS

$custom: #4187ce;
$custom-light: #85a9dd;
$custom-dark: #000000;

JSON

{
  "hex": "#4187ce",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 206
  },
  "hsl": {
    "h": 210.213,
    "s": 58.996,
    "l": 53.137
  },
  "oklch": {
    "l": 0.61128,
    "c": 0.12927,
    "h": 251
  },
  "luminance": 0.22908
}

Semantic roles & 50–950 ramp

primary

#4187CE

secondary

#D4B697

accent

#9446E2

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4187CE

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

Preview Lab → · Contrast checker → · Palette generator →