#4387C9#4387C9

#4387C9 is a mid, vivid cyan. Relative luminance 0.227; OKLCH L 60.9% C 0.122 H 249.9°. Best body text is #000000 at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#4387C9
RGB	rgb(67, 135, 201)
HSL	hsl(210, 55%, 53%)
HSV	hsv(210, 67%, 79%)
CMYK	cmyk(66.7%, 32.8%, 0%, 21.2%)
CIE-LAB	lab(54.80, -0.44, -40.52)
CIE-LCH	lch(54.80, 40.53, 269.38°)
OKLab	oklab(60.93% -0.042 -0.1148)
OKLCH	oklch(60.93% 0.122 249.9)
XYZ	xyz(21.5174, 22.7361, 58.5015)
Luminance	0.2274 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4387C9 #C98543

analogous

#43C9C8 #4387C9 #4344C9

triadic

#4387C9 #C94387 #87C943

tetradic

#4387C9 #C843C9 #C98543 #44C943

square

#4387C9 #C843C9 #C98543 #44C943

split-complementary

#4387C9 #C94344 #C9C843

monochromatic

#204971 #2E68A1 #4387C9 #73A5D7 #A2C4E4

Accessibility & contrast

On white

3.79

#4387C9 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.55

#4387C9 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #4387C9

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4387C9	#FFFFFF	#000000	##000000
##4387C9	1.00	3.79	5.55	5.55
#FFFFFF	3.79	1.00	21.00	21.00
#000000	5.55	21.00	1.00	1.00
##000000	5.55	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#6A8ACC

Deuteranopia (green-blind)

#577DC8

Tritanopia (blue-blind)

#00979F

Achromatopsia (no color)

#838383

Design tokens & code

CSS

--color: #4387c9;
/* rgb */ color: rgb(67, 135, 201);
/* oklch */ color: oklch(60.9% 0.122 249.9);

Tailwind

colors: {
  custom: {
    50: '#85a9d9',
    500: '#4387c9',
    950: '#000000',
  },
}

SCSS

$custom: #4387c9;
$custom-light: #85a9d9;
$custom-dark: #000000;

JSON

{
  "hex": "#4387c9",
  "rgb": {
    "r": 67,
    "g": 135,
    "b": 201
  },
  "hsl": {
    "h": 209.552,
    "s": 55.372,
    "l": 52.549
  },
  "oklch": {
    "l": 0.60929,
    "c": 0.12221,
    "h": 249.9
  },
  "luminance": 0.22738
}

Semantic roles & 50–950 ramp

primary

#4387C9

secondary

#D1B397

accent

#9349DF

background

#F8FAFD

surface

#F0F4FA

border

#CBCED3

text

#0C0F15

muted

#7D7F83

Preview Lab

Preview with #4387C9

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

Preview Lab → · Contrast checker → · Palette generator →