#4387BB#4387BB

#4387BB is a mid, moderate cyan. Relative luminance 0.221; OKLCH L 60.2% C 0.105 H 244.0°. Best body text is #000000 at 5.42:1 contrast (WCAG AA passes).

Color values

HEX	#4387BB
RGB	rgb(67, 135, 187)
HSL	hsl(206, 47%, 50%)
HSV	hsv(206, 64%, 73%)
CMYK	cmyk(64.2%, 27.8%, 0%, 26.7%)
CIE-LAB	lab(54.14, -5.21, -33.59)
CIE-LCH	lch(54.14, 34.00, 261.19°)
OKLab	oklab(60.19% -0.0462 -0.0946)
OKLCH	oklch(60.19% 0.105 244)
XYZ	xyz(19.9450, 22.1071, 50.2201)
Luminance	0.2211 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387BB #BB7743

analogous

#43BBB3 #4387BB #434BBB

triadic

#4387BB #BB4387 #87BB43

tetradic

#4387BB #B343BB #BB7743 #4BBB43

square

#4387BB #B343BB #BB7743 #4BBB43

split-complementary

#4387BB #BB434B #BBB343

monochromatic

#234661 #33668E #4387BB #70A4CC #9DC0DC

Accessibility & contrast

On white

3.87

#4387BB on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.42

#4387BB on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387BB

5.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387BB	#FFFFFF	#000000	##000000
##4387BB	1.00	3.87	5.42	5.42
#FFFFFF	3.87	1.00	21.00	21.00
#000000	5.42	21.00	1.00	1.00
##000000	5.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#7088BD

Deuteranopia (green-blind)

#607CBA

Tritanopia (blue-blind)

#009499

Achromatopsia (no color)

#818181

Design tokens & code

CSS

--color: #4387bb;
/* rgb */ color: rgb(67, 135, 187);
/* oklch */ color: oklch(60.2% 0.105 244.0);

Tailwind

colors: {
  custom: {
    50: '#83a9cf',
    500: '#4387bb',
    950: '#000000',
  },
}

SCSS

$custom: #4387bb;
$custom-light: #83a9cf;
$custom-dark: #000000;

JSON

{
  "hex": "#4387bb",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 187
  },
  "hsl": {
    "h": 206,
    "s": 47.244,
    "l": 49.804
  },
  "oklch": {
    "l": 0.60194,
    "c": 0.1053,
    "h": 244
  },
  "luminance": 0.22109
}

Semantic roles & 50–950 ramp

primary

#4387BB

secondary

#C8A992

accent

#8B51D7

background

#F8FAFC

surface

#F0F4F9

border

#CBCED2

text

#0C0F14

muted

#7D7F82

Preview Lab

Preview with #4387BB

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

Preview Lab → · Contrast checker → · Palette generator →