#4287C1#4287C1

#4287C1 is a mid, moderate cyan. Relative luminance 0.223; OKLCH L 60.5% C 0.113 H 246.5°. Best body text is #000000 at 5.47:1 contrast (WCAG AA passes).

Color values

HEX	#4287C1
RGB	rgb(66, 135, 193)
HSL	hsl(207, 51%, 51%)
HSV	hsv(207, 66%, 76%)
CMYK	cmyk(65.8%, 30.1%, 0%, 24.3%)
CIE-LAB	lab(54.38, -3.35, -36.64)
CIE-LCH	lch(54.38, 36.80, 264.78°)
OKLab	oklab(60.46% -0.045 -0.1035)
OKLCH	oklch(60.46% 0.113 246.5)
XYZ	xyz(20.5328, 22.3344, 53.6706)
Luminance	0.2234 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4287C1 #C17C42

analogous

#42C1BC #4287C1 #4247C1

triadic

#4287C1 #C14287 #87C142

tetradic

#4287C1 #BC42C1 #C17C42 #47C142

square

#4287C1 #BC42C1 #C17C42 #47C142

split-complementary

#4287C1 #C14247 #C1BC42

monochromatic

#224767 #316795 #4287C1 #70A4D0 #9EC2DF

Accessibility & contrast

On white

3.84

#4287C1 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.47

#4287C1 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4287C1

5.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4287C1	#FFFFFF	#000000	##000000
##4287C1	1.00	3.84	5.47	5.47
#FFFFFF	3.84	1.00	21.00	21.00
#000000	5.47	21.00	1.00	1.00
##000000	5.47	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6D89C4

Deuteranopia (green-blind)

#5C7DC0

Tritanopia (blue-blind)

#00959B

Achromatopsia (no color)

#828282

Design tokens & code

CSS

--color: #4287c1;
/* rgb */ color: rgb(66, 135, 193);
/* oklch */ color: oklch(60.5% 0.113 246.5);

Tailwind

colors: {
  custom: {
    50: '#83a9d4',
    500: '#4287c1',
    950: '#000000',
  },
}

SCSS

$custom: #4287c1;
$custom-light: #83a9d4;
$custom-dark: #000000;

JSON

{
  "hex": "#4287c1",
  "rgb": {
    "r": 66,
    "g": 135,
    "b": 193
  },
  "hsl": {
    "h": 207.402,
    "s": 50.598,
    "l": 50.784
  },
  "oklch": {
    "l": 0.60463,
    "c": 0.11286,
    "h": 246.5
  },
  "luminance": 0.22336
}

Semantic roles & 50–950 ramp

primary

#4287C1

secondary

#CCAD93

accent

#8E4EDA

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F14

muted

#7D7F83

Preview Lab

Preview with #4287C1

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

Preview Lab → · Contrast checker → · Palette generator →