#4187D9#4187D9

#4187D9 is a mid, vivid cyan. Relative luminance 0.235; OKLCH L 61.8% C 0.143 H 254.1°. Best body text is #000000 at 5.69:1 contrast (WCAG AA passes).

Color values

HEX	#4187D9
RGB	rgb(65, 135, 217)
HSL	hsl(212, 67%, 55%)
HSV	hsv(212, 70%, 85%)
CMYK	cmyk(70%, 37.8%, 0%, 14.9%)
CIE-LAB	lab(55.54, 4.84, -48.38)
CIE-LCH	lch(55.54, 48.62, 275.71°)
OKLab	oklab(61.76% -0.0392 -0.1378)
OKLCH	oklch(61.76% 0.143 254.1)
XYZ	xyz(23.3637, 23.4590, 68.9289)
Luminance	0.2346 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4187D9 #D99341

analogous

#41D3D9 #4187D9 #4741D9

triadic

#4187D9 #D94187 #87D941

tetradic

#4187D9 #D941D3 #D99341 #41D947

square

#4187D9 #D941D3 #D99341 #41D947

split-complementary

#4187D9 #D94741 #D3D941

monochromatic

#1B4C85 #2569B8 #4187D9 #74A7E3 #A7C7ED

Accessibility & contrast

On white

3.69

#4187D9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.69

#4187D9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4187D9

5.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4187D9	#FFFFFF	#000000	##000000
##4187D9	1.00	3.69	5.69	5.69
#FFFFFF	3.69	1.00	21.00	21.00
#000000	5.69	21.00	1.00	1.00
##000000	5.69	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#628DDC

Deuteranopia (green-blind)

#4B7FD7

Tritanopia (blue-blind)

#009AA5

Achromatopsia (no color)

#858585

Design tokens & code

CSS

--color: #4187d9;
/* rgb */ color: rgb(65, 135, 217);
/* oklch */ color: oklch(61.8% 0.143 254.1);

Tailwind

colors: {
  custom: {
    50: '#87a9e5',
    500: '#4187d9',
    950: '#000000',
  },
}

SCSS

$custom: #4187d9;
$custom-light: #87a9e5;
$custom-dark: #000000;

JSON

{
  "hex": "#4187d9",
  "rgb": {
    "r": 65,
    "g": 135,
    "b": 217
  },
  "hsl": {
    "h": 212.368,
    "s": 66.667,
    "l": 55.294
  },
  "oklch": {
    "l": 0.61756,
    "c": 0.14324,
    "h": 254.1
  },
  "luminance": 0.23462
}

Semantic roles & 50–950 ramp

primary

#4187D9

secondary

#DBBD9B

accent

#9B3EEA

background

#F8FAFE

surface

#F0F4FC

border

#CBCED5

text

#0D0F16

muted

#7D7F84

Preview Lab

Preview with #4187D9

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

Preview Lab → · Contrast checker → · Palette generator →