#4387CF#4387CF

#4387CF is a mid, vivid cyan. Relative luminance 0.230; OKLCH L 61.3% C 0.130 H 251.9°. Best body text is #000000 at 5.61:1 contrast (WCAG AA passes).

Color values

HEX	#4387CF
RGB	rgb(67, 135, 207)
HSL	hsl(211, 59%, 54%)
HSV	hsv(211, 68%, 81%)
CMYK	cmyk(67.6%, 34.8%, 0%, 18.8%)
CIE-LAB	lab(55.10, 1.64, -43.45)
CIE-LCH	lch(55.10, 43.48, 272.16°)
OKLab	oklab(61.26% -0.0404 -0.1233)
OKLCH	oklch(61.26% 0.13 251.9)
XYZ	xyz(22.2370, 23.0239, 62.2915)
Luminance	0.2303 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387CF #CF8B43

analogous

#43CDCF #4387CF #4543CF

triadic

#4387CF #CF4387 #87CF43

tetradic

#4387CF #CF43CD #CF8B43 #43CF45

square

#4387CF #CF43CD #CF8B43 #43CF45

split-complementary

#4387CF #CF4543 #CDCF43

monochromatic

#1F4B79 #2B69AA #4387CF #74A6DB #A5C5E8

Accessibility & contrast

On white

3.75

#4387CF on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.61

#4387CF on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387CF

5.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387CF	#FFFFFF	#000000	##000000
##4387CF	1.00	3.75	5.61	5.61
#FFFFFF	3.75	1.00	21.00	21.00
#000000	5.61	21.00	1.00	1.00
##000000	5.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#678BD2

Deuteranopia (green-blind)

#537ECE

Tritanopia (blue-blind)

#0098A1

Achromatopsia (no color)

#848484

Design tokens & code

CSS

--color: #4387cf;
/* rgb */ color: rgb(67, 135, 207);
/* oklch */ color: oklch(61.3% 0.130 251.9);

Tailwind

colors: {
  custom: {
    50: '#86a9de',
    500: '#4387cf',
    950: '#000000',
  },
}

SCSS

$custom: #4387cf;
$custom-light: #86a9de;
$custom-dark: #000000;

JSON

{
  "hex": "#4387cf",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 207
  },
  "hsl": {
    "h": 210.857,
    "s": 59.322,
    "l": 53.725
  },
  "oklch": {
    "l": 0.6126,
    "c": 0.12974,
    "h": 251.9
  },
  "luminance": 0.23026
}

Semantic roles & 50–950 ramp

primary

#4387CF

secondary

#D5B899

accent

#9645E3

background

#F8FAFD

surface

#F0F4FB

border

#CBCED4

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4387CF

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

Preview Lab → · Contrast checker → · Palette generator →